Tools for Content Creator
327 hand-picked tools for Content Creator. Free, private, browser-based.
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24-Point Solver & Game
24-point solver and game — enter 4 numbers and get every solution instantly, or play random hands against the clock.
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A1Z26 Cipher (Letter ⇄ Number)
A=1, B=2 … Z=26 — encode text to numbers or decode numbers to text, pick hyphen / space / comma separators, one-click copy — browser-only
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Chinese Acupoint Locator
200+ meridian acupoints / WHO 2008 standard locations / with contraindications, manipulation, and combinations.
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Ad Copy Checklist
Verify every element of your ad before launch — headline, CTA, compliance, and technical setup
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Add Line Numbers
Number every line of pasted text — set start, step and separator, zero-pad to align, skip blanks, or strip numbers back off — browser-only
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Aesthetic Text Generator
Turn plain text into ｗｉｄｅ fullwidth vaporwave letters, spaced-out aesthetic, or fold it back to normal — one click to copy, runs in your browser
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Age Calculator
Calculate your exact age — years, months, days, hours. Compare two dates or count to a future date.
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AI Model Comparison
AI model comparison — 20+ models (GPT / Claude / Gemini / Llama / Qwen) across price, context, speed, capabilities (2026).
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AI Token Counter
AI token counter — estimate token count for GPT / Claude / Gemini, with per-model cost calculator (2026 pricing).
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Airline Luggage Allowance Checker
Airline luggage allowance — 50+ carriers' carry-on / checked baggage rules with size, weight, and excess fee.
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Anagram Solver
Check if two words are anagrams, rearrange a set of letters into every ordering, and read the sorted letter fingerprint, all in your browser
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Annuity Calculator
Annuity & retirement calculator — see monthly income from your savings, accumulation + payout phases, multiple scenarios.
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Arabic 1100 Essential Words
Arabic 1100 essential A1–A2 MSA words — Arabic script with full ḥarakāt, DIN 31635 romanization, gender, three-form verbs, audio TTS.
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ASCII Art Generator
Generate ASCII art from text — figlet-style banners, multiple fonts.
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Aspect Ratio Calculator
Calculate aspect ratio — fix any 1 of [width, height, ratio], get the other two.
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Avatar Generator
Generate avatars from initials, identicons, or random shapes. Download PNG/SVG.
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Baker's Percentage Calculator
Flour = 100%. Read hydration, salt and yeast as percentages, or scale a recipe to any flour weight — browser-only
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Base64 to File Converter
Paste raw Base64 or a data URL, decode it locally, inspect bytes, and download the reconstructed file.
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Baseball Batting Average Calculator
AVG, OBP, SLG and OPS from one stat line — three-decimal display like .300, walks kept out of at bats — browser-only
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Batch File Rename Planner
Upload a batch, generate safe new filenames with sequence numbers and case rules, then export a CSV plan.
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BaZi (Four Pillars) Calculator
BaZi (Four Pillars) calculator — Chinese metaphysics birth chart with 8 characters, five elements analysis.
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BBCode to HTML Converter
Paste forum BBCode, get safe HTML — live preview, escaped output, one-click copy, all in your browser
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Bingo Card Generator
Classic 75-ball B-I-N-G-O, UK 90-ball tickets, or your own words — print up to 30 unique cards, crypto-random, browser-only
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Bionic Reading Converter
Bold the leading letters of every word — live preview, adjustable strength, export HTML — 100% in-browser
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Birthday Paradox Calculator
Birthday paradox calculator — see the probability of shared birthdays in a group of N people, visualized step by step.
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BMR Calculator
BMR calculator — basal metabolic rate by Mifflin-St Jeor and Harris-Benedict (compared side-by-side).
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Body Fat Calculator
Body fat % calculator — 4 formulas (US Navy / BMI-based / YMCA / Jackson-Pollock) with body shape visualization.
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BPM Tap Counter
BPM tap counter — tap the spacebar to the beat, instantly get tempo with running average, find your song's tempo for DJ / dance / metronome.
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Braille Translator
Type text and read it back as Unicode braille dots, or paste braille to recover the letters, all in your browser
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Calorie Calculator
Calorie calculator — daily calorie needs (BMR + TDEE), weight loss/gain targets, macro breakdown.
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Calorie Deficit Calculator
Pick a daily calorie deficit, enter your current and goal weight, and see how many weeks it takes and the date you'd hit your target — with a safety check, browser-only
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Candle Wax Calculator
Volume × fill rate × wax density = grams of wax, plus fragrance oil at your load percent — soy, paraffin, beeswax, mL or fl oz — browser-only
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Capo Chord Calculator
Capo on fret N raises every chord N semitones, find the sounding chord or the easy shape to play, suffixes kept
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Car Loan Calculator with Prepayment
Car loan calculator with prepayment — bank vs 4S dealer financing comparison, equal-installment / equal-principal / balloon plans, prepayment-savings simulation.
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Case Converter
Convert text between camelCase, snake_case, kebab-case, PascalCase, Title Case, UPPER, lower — instant, browser-only
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Cat Breed Finder (10-Question Lifestyle Quiz)
Cat breed finder — answer 10 lifestyle questions, get 5 matching cat breeds with personality, grooming needs, friendliness.
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Character Frequency Counter
Count how often every character appears, ranked by frequency, with case, space and punctuation toggles, browser-only
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Chengyu Chain Game
Chengyu chain game with a 30,000+ idiom dictionary (full 汉语成语大词典 coverage). Start with any idiom; the computer continues with one whose first character matches your last.
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Child Adult-Height Predictor
Child adult-height predictor — 3 scientific methods (mid-parental / Khamis-Roche / CDC growth percentile), with confidence range + growth chart.
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China Child Vaccine Schedule (0-6y)
China 0-6y child immunization schedule — 11 free + 12 paid vaccines, generates personalized calendar from baby's birthdate, with per-dose reminders.
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China Company Income Tax Calculator
China company income tax calculator — small/micro (2.5%/5%/25%) vs general taxpayer, R&D super-deduction, loss carry-forward 5 years.
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China Drunk-Driving Penalty Reference
China drunk-driving penalty reference — BAC threshold (20/80), license suspension/revocation, criminal charges, insurance impact, by scenario.
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China Unemployment Benefits Calculator
China unemployment benefits calculator — monthly amount + total months by city + insurance years, per 2026 policy.
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China Gaokao Major Recommender (2026, 3+1+2 New Gaokao)
China gaokao major recommender 2026 — filter by score range + subject combo (3+1+2) + interest + employment outlook, 150+ undergrad majors across 12 disciplines.
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China Housing Provident Fund Loan Calculator
China housing-provident-fund loan calculator — single + dual contributor max loan, monthly payment (equal-principal + equal-installment), top-30 cities 2025 caps.
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Chinese Idiom Search
800+ everyday chengyu — pinyin, origin, usage.
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Chinese Lorem Ipsum Generator
Han-character placeholder text that fills a column the way real Chinese copy will, three styles, browser-only
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Chinese Lunar Almanac (Huangli)
Chinese lunar almanac (huangli) — daily 宜/忌 advice, 24 solar terms, 干支/生肖, auspicious hours, any date 1900-2100.
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China Marriage Betrothal Reference
China marriage betrothal reference — 30+ provinces' typical betrothal money + dowry + 3-gold/5-gold averages (2024-2026 public data).
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China Maternity Benefits Calculator
China maternity benefits calculator — leave days by province (98 base + extension 30-180 days), maternity allowance (avg-wage × leave-days / 30), medical reimbursement, 2025 policy.
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Chinese Name Generator
Chinese name generator — meaningful Chinese names with pinyin, meaning, and stroke count.
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Chinese Numeric Converter
Arabic ⇄ Chinese number — simple (一二三), formal (壹貳參), or amount (金额大写 with 元角分).
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China Pension Calculator
China pension calculator — basic + personal-account + transitional pension formulas (2024 reform), by province average wage, contribution years, base, with 2055 projection.
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China Personal Income Tax — Special Deduction Simulator
China personal income tax special deduction simulator — 7 categories (kids/elder/mortgage/rent/education/medical/infant), year-end reconciliation included.
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Chinese Pinyin Converter
Chinese characters to pinyin — with tone marks or numbers, supports simplified and traditional.
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Chinese Poetry Search
Chinese classical poetry — 300+ hand-annotated Tang/Song/Yuan canon (唐诗宋词元曲) plus 80,000+ searchable Tang/Song/Shijing/Chuci poems on demand.
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China Retirement Age Calculator
China retirement age calculator (2025 reform) — exact retirement date by birth year + gender + worker category, per Sept 2024 NPC reform.
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Chinese Stroke Counter
Chinese character stroke counter — count strokes for any hanzi, traditional or simplified.
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China Three-Child Birth Subsidy Policy Finder
China three-child birth subsidy policy finder — per province / city one-time + monthly + housing + education subsidies (2024-2025 latest).
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China Used-Car Price Estimator
China used-car price estimator — depreciation curve by brand tier + age + mileage + condition, plus 4S trade-in vs private vs auction net comparison.
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Chinese Zodiac Sign Checker (Sheng Xiao)
Chinese zodiac checker — your animal sign, element, compatibility, lucky numbers/colors by birth year.
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Chinese Zodiac Fortune (Daily / Monthly / Yearly)
Chinese zodiac fortune — daily/monthly/yearly outlook for 12 zodiac signs in love, career, wealth, health.
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Circle of Fifths
Interactive circle of fifths, click any major key for its key signature, relative minor, scale and dominant
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Clothing Size Converter
US ⇄ UK ⇄ EU ⇄ CN ⇄ S–XXL for men & women — tops, trousers, dresses, suits — with the body measurements behind every size — browser-only
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Code Screenshot Generator
Code screenshot generator (Carbon-like) — syntax highlight, beautiful gradient backgrounds, window chrome, export PNG/SVG for X / blog covers.
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Coffee Ratio Calculator
Coffee-to-water ratio calculator — type 1:16, pick a brew method, get exact grams of coffee and water for any batch
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Coin Flip
Flip a fair coin or run 1000 tosses at once, with crypto-grade 50/50 odds and your own heads-or-tails labels
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Cold Email Checklist
Verify every element of your cold email before hitting send — subject line, personalization, CTA, and deliverability
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Color Blindness Simulator
Color blindness simulator — paste hex or upload image, see how it looks to people with protanopia / deuteranopia / tritanopia / monochromacy.
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Color Contrast Checker
Color contrast checker — WCAG 2.2 AA/AAA compliance for normal/large text, real-time grade.
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Color Mixer
Color mixer — blend any two colors with adjustable ratio, RGB/HSL/LAB color space, predict the result and copy hex.
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Compound Interest Calculator
Compound interest calculator — see how money grows over time, with monthly contributions, charts, and breakdown.
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Western Zodiac Calculator (Sun Sign)
Western zodiac calculator — your sign, element, ruling planet, compatibility, daily traits.
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Content Refresh Checklist
Generate a prioritized content refresh checklist from URL, topic, and performance signals.
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Cooking Measurement Converter
Cups, spoons, grams, millilitres — and the part that matters, volume ↔ weight by ingredient density, all in your browser
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Cooking Unit Converter
Cooking unit converter — tsp / tbsp / cup / oz / ml / g for 100+ common ingredients with density.
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Countdown Timer
Countdown timer — to any date and event, with live ticking down to seconds.
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Cover Letter Generator
Cover letter generator — fill 6 fields, pick a tone, get a tailored cover letter in 4 templates, bilingual.
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CSV to HTML Table
Paste CSV, get a clean HTML table, with header toggle, optional class and inline borders, all in your browser
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Currency Converter
Currency converter — 50+ currencies with offline reference rates, convert without internet, source data updated each release.
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Cycling FTP Calculator
20-min power × 0.95 = FTP — Coggan 7 power zones, watts and W/kg, one-click copy — runs in your browser
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Depth of Field Calculator
Near limit, far limit, total depth of field & hyperfocal distance from your sensor, focal length, aperture and focus distance — browser-only
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Dice Probability Calculator
Exact odds for any NdS roll: full sum distribution, expected value, and P(sum = / ≥ / ≤ X), counted not simulated
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Dice Roller
Roll D4-D100 + 3d6+2 notation, advantage/disadvantage — fair CSPRNG, browser-only
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Dog Breed Finder (10-Question Lifestyle Quiz)
Dog breed finder — answer 10 questions about your lifestyle, get 5 matching breeds with size, temperament, exercise needs.
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DOI Deduplicator
Find duplicates and keep one clean copy of dois from pasted text or uploaded local files.
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DOI Extractor
Extract, dedupe, and export dois from pasted text or uploaded local files.
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DOI List Converter
Convert dois from pasted text or uploaded local files.
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DOI List Validator
Validate and explain issues in dois from pasted text or uploaded local files.
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DOI Normalizer
Normalize, sort, and prepare dois from pasted text or uploaded local files.
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Dream Interpretation Dictionary (Zhougong + Jung)
Dream dictionary — search dream symbols and meanings (Chinese 周公解梦 + Jungian).
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Duplicate File Finder
Upload a batch and find exact duplicate files by SHA hash locally, with a Markdown cleanup report.
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Dutch 500 Essential Words
Dutch 500 essential A1–A2 words — IPA + de/het articles + 6-person conjugation + audio TTS.
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Emoji Finder
Unicode 15.1 / 1500+ emojis with bilingual search — one-click copy, browser-only
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Emoji Kitchen
Emoji mashup — combine two emojis to make a new one (Unicode-only, no Google API, with 500+ pre-defined combos).
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Emoji Recommender
Emoji recommender — paste your headline or post, get matching emoji suggestions.
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Emoji Remover
Strip every emoji from text, family and skin-tone combos removed whole, your words and punctuation left untouched, browser-only
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English Collocations
English collocations reference — 200+ common verb + noun / adj + noun / verb + prep collocations with usage examples.
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English Grammar Rules Reference
English grammar rules reference — 60+ core grammar rules with side-by-side examples, common mistakes, bilingual explanations.
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Expense Tracker
Expense tracker — log spend, categorize, see monthly totals, all in your browser.
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Exposure Value (EV) Calculator
EV = log2(N²/t) from aperture + shutter + ISO, plus equivalent-exposure solving and a Sunny-16 reference — browser-only
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Fancy Text Generator
Turn plain text into 25 Unicode styles — bold, italic, script, fraktur, double-struck, circled, squared, fullwidth, upside-down, small caps, strikethrough — copy & paste anywhere, browser-only
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FFMI Calculator
Fat-Free Mass Index from weight, body-fat and height, with normalized FFMI and the natural-limit bands, 100% in your browser
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Figlet ASCII Banner Generator
Turn a short word into a big ASCII letter banner with three built-in fonts, all in your browser
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File to Base64 Converter
Upload a small file and convert it to raw Base64 or a data URL locally for embeds, fixtures, and tests.
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Fish Tank Calculator
Fish tank size calculator — input fish species and count, get the minimum tank gallons/liters needed and stocking density warnings.
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Font Pairing Generator
Font pairing generator — 50+ curated Google Fonts pairs (heading + body) with live preview, classifications, CSS export.
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Fortune Cookie (Daily Bilingual Fortune + Lucky Numbers + Lucky Color)
Daily fortune cookie — bilingual fortunes plus lucky numbers, lucky color, daily affirmation. 365 unique reads.
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French 1086 Essential Words — DELF A1, A2, B1, B2 & Professions
1086 French entries — 1036 DELF A1-B2 core words plus 50 profession words. IPA, gender, Bescherelle conjugation (présent / passé composé / futur simple), free TTS, 17 categories.
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Fuel Cost Calculator
Trip fuel cost from distance + economy + price — round trip, per-person split, L/100km ⇄ MPG — browser-only.
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2048 Game (Slide, Merge, Reach 2048)
2048 game — slide tiles, combine numbers, reach 2048. Pure browser, no ads, your high score saved locally.
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German 500 Essential Words
German 500 essential words (A1-A2 + B1 core) with IPA, der/die/das, full Präsens, Präteritum, Perfekt, Partizip II for verbs, and browser TTS.
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GitHub README Badge Generator
GitHub README badge generator — shields.io-style badges, 50+ presets (build/version/license/coverage/etc), custom labels, copy as Markdown/HTML/AsciiDoc/RST.
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Glove Size Converter
Measure your palm once, read your glove number, letter (S/M/L/XL) and EU size — cm ⇄ inch, reverse lookup, browser-only
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Golf Handicap Calculator
Score differential and WHS Handicap Index from your rounds, best-N averaged ×0.96, single-round quick mode, one-click copy, browser-only
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Gradient Mesh Generator
Gradient mesh generator — 4-12 control points with bilinear blend, output as SVG, PNG, CSS multi-radial-gradients fallback for older browsers.
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Haiku Checker
Paste three lines, see 5-7-5 syllable counts per line, with off-pattern lines flagged — English heuristic, browser-only
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Handwriting Practice Sheet
Handwriting practice sheet generator — Chinese 米字格 / 田字格 / 四线三格 (English) PDF-ready printable.
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Hashtag Deduplicator
Find duplicates and keep one clean copy of hashtags from pasted text or uploaded local files.
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Hashtag Extractor
Extract, dedupe, and export hashtags from pasted text or uploaded local files.
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Hashtag Generator
Hashtag generator — Instagram / TikTok / Twitter / Xiaohongshu / Weibo hashtags from your topic.
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Hashtag List Converter
Convert hashtags from pasted text or uploaded local files.
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Hashtag List Validator
Validate and explain issues in hashtags from pasted text or uploaded local files.
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Hashtag Normalizer
Normalize, sort, and prepare hashtags from pasted text or uploaded local files.
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Hat Size Converter
Head circumference to US / UK / EU / S-M-L hat size, with a full chart and one-click copy, all in your browser
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Headline Analyzer
Headline analyzer — score your title's clickability, SEO length, emotional words, power words.
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Heart Rate Zones Calculator
Heart rate zones calculator — max HR (4 formulas) + 5 training zones (recovery/aerobic/tempo/threshold/VO2max), with workout examples.
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Hex Color Deduplicator
Find duplicates and keep one clean copy of hex colors from pasted text or uploaded local files.
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Hex Color Extractor
Extract, dedupe, and export hex colors from pasted text or uploaded local files.
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Hex Color List Converter
Convert hex colors from pasted text or uploaded local files.
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Hex Color List Validator
Validate and explain issues in hex colors from pasted text or uploaded local files.
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Hex Color Normalizer
Normalize, sort, and prepare hex colors from pasted text or uploaded local files.
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Hindi 1300 Essential Words
Hindi 1300 essential A1–A2 words — Devanagari, IAST, IPA, gender, -nā verbs, audio TTS.
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HTML Color Names
HTML named colors — all 147 CSS color names with hex/RGB/HSL, searchable + sortable.
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HTML Entities Encoder
Encode/decode HTML entities — & < > " ' and all numeric refs — browser-only
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HTML Entity Encoder / Decoder
Encode & decode all HTML5 entities — named, decimal, hex — XSS prevention and safe markup, 100% client-side
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HTML Link Extractor
Upload HTML and extract anchors, images, scripts, stylesheets, canonicals, and meta URLs into CSV locally.
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HTML Table to CSV Converter
HTML table to CSV converter — paste HTML or full page source, extract all tables, get CSV/TSV/JSON/Excel-ready output with header detection + colspan/rowspan handling.
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HTML Table to Markdown
Paste an HTML table, get a clean GitHub-flavoured Markdown table with the |---| separator row, tags stripped, entities decoded and pipes escaped, all in your browser
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HTML to Markdown
HTML to Markdown — paste rich content, get clean .md with links, code, tables, lists preserved.
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Google Fonts CSS2 URL Builder
Parse, edit, and generate Google Fonts CSS2 links, HTML preconnect tags, @import CSS, variables, and Tailwind font stacks.
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ID Photo Resizer
Resize any photo to passport, visa, or ID spec — center-crop to exact pixels, fully in-browser, no upload
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Image Compressor (Local)
Image compressor — squeeze JPG/PNG/WebP without server upload, with quality slider, batch mode, file size comparison.
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Image Cropper
Image cropper — drag to crop, fixed ratios (1:1 / 16:9 / 9:16 / 4:3), zoom, rotate, fully client-side.
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Image EXIF Privacy Scanner
Scan uploaded images for EXIF, GPS, camera, software, dates, XMP, and ICC privacy indicators.
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Image Format Converter
Image format converter — JPG ↔ PNG ↔ WebP ↔ AVIF, batch + transparent background handling, 100% client-side.
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Image Host
Upload an image, get a permanent direct link plus ready-to-paste Markdown, HTML and BBCode.
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Image Resizer
Image resizer — resize JPG/PNG/WebP by pixels/%/preset, fully client-side, no upload.
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Image Target Size Compressor
Compress one image to a target KB size locally with quality search, automatic downscaling, preview, and download.
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Image to ASCII Art
Image to ASCII art — convert any image to text-based art with adjustable density and character set.
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Image Watermark
Image watermark — text or image watermark with position grid, opacity, tile mode, batch processing.
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China Income Tax Calculator
China personal income tax calculator — monthly, annual, with 5 insurance + 1 fund deductions.
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Indonesian 500 Essential Words
Indonesian 500 essential A1–A2 words — KBBI spelling + Jakarta IPA + audio TTS. No tones, no conjugation.
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Intermittent Fasting Tracker — 16:8 / OMAD / 5:2 / 36h Timer with Stages
Intermittent fasting tracker — 16:8 / 18:6 / 20:4 / OMAD / 5:2 / 36h timer with stages and history log.
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Interview Questions Bank
Interview questions bank — 300+ real questions across behavioral / technical / case / culture, with strong answer frameworks.
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Invisible Text Generator
Copy blank-looking text made of real invisible Unicode for empty messages, blank usernames and placeholders, browser-only
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Invoice Generator
Free invoice generator — clean PDF in your browser, no signup, no watermark.
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Italian 500 Essential Words
Italian 500 essential words (A1-A2 Plida) with IPA, gender, full verb conjugation, audio TTS.
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Japanese 500 Essential Words (JLPT N5 + N4)
Japanese 500 essential words covering JLPT N5 and N4, with kana, romaji, kanji and audio TTS.
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JSON Formatter & Validator
Format, validate, and minify JSON instantly — right in your browser.
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JSON Minifier
Minify JSON into a compact single line, optionally sort object keys, and keep everything local.
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JSON to Markdown Table
Paste a JSON array of objects, get a clean GitHub-flavored Markdown table. Key union, pipe escaping, alignment, all in your browser.
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Kaomoji Picker
Browse 120+ Japanese emoticons by mood, search in English, click to copy the shrug ¯\_(ツ)_/¯ and friends
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K/D Ratio Calculator
Kills ÷ deaths, plus KDA with assists and the kills you need to hit a target K/D — browser-only, share-by-link
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Kids Allowance Calculator
Kids allowance calculator — age-appropriate weekly/monthly amount with chore-based breakdown, savings goal sandbox.
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Korean 500 Essential Words (TOPIK I–II)
Korean 500 essential words spanning TOPIK I and TOPIK II — start speaking Korean today with Hangul, romanization, audio TTS, and full verb conjugations.
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Leetspeak Converter
Turn plain text into 1337 and back, three strength levels, all in your browser
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List Randomizer
Shuffle a list, pick N at random, split into K teams, or draw one winner — fair crypto randomness, browser-only
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Loan Comparison Calculator
Loan comparison calculator — compare equal-payment vs equal-principal, multiple loans side by side, total interest breakdown.
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Loan Prepayment Calculator
Loan prepayment calculator — see how much interest you save by paying extra each month or one-time, with breakeven analysis.
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Local File Workbench
Triage a mixed batch locally for file type mismatches, duplicate candidates, metadata privacy, archive risks, and next-step tools.
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Lorem Ipsum Generator
Classic Lorem Ipsum filler text — paragraphs, sentences, or words — copy in one click, browser-only
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Lottery Number Generator
Crypto-random lottery picks for Powerball, EuroMillions, 6/49 and your own range, with a bonus-ball set and multi-line tickets
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Lunar Calendar Converter (Chinese Nongli)
Gregorian ⇄ Chinese Lunar (Nongli) calendar — bi-directional, accurate 1900-2100.
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Macro Nutrient Calculator
Macro nutrient calculator — TDEE + protein/fat/carb split for cut/maintain/bulk goals, with 3 split presets (high-protein/keto/balanced) and meal example.
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Marathon Time Predictor
Marathon time predictor — input 5k/10k/half time, get full marathon prediction via 3 formulas (Riegel/Cameron/VDOT), with pace zones and weekly mileage advice.
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Markdown Cheat Sheet
Markdown syntax cheat sheet — every rule with live preview side by side, GFM + flavors.
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Markdown Editor with Live Preview
Markdown editor with live split-pane preview — GFM tables, fenced code with syntax highlight, math, emoji, table of contents, export as HTML / PDF-ready.
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Markdown Link Extractor
Upload Markdown and extract inline links, reference links, images, and bare URLs into a local CSV.
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Markdown Table Generator
Build Markdown tables visually — add/remove rows, column alignment, paste from Excel / CSV — browser-only
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Markdown Table to CSV
Paste a Markdown pipe table, get RFC 4180 CSV: escaped pipes, quoted commas, comma / semicolon / tab delimiters, all in your browser
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Markdown to BBCode Converter
Paste Markdown, get forum BBCode in real time. Bold, links, lists, code blocks and quotes mapped to [b] [url=] [list] [code] [quote], browser only
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Markdown to HTML
Convert Markdown to clean HTML — headings, lists, code, links, images, tables — instant live preview, browser-only
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Markdown to Plain Text
Strip Markdown to clean plain text — headings, bold, links, code, lists, tables, HTML all flattened — browser-only
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Markdown TOC Generator
Markdown TOC generator — paste your markdown, get a clean table of contents with anchor links.
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Maze Generator
Random printable mazes as crisp SVG, pick the size, flip on the solution, download or copy in one click, all in your browser
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MBTI Quick Test (28 Questions, 16 Personality Types)
MBTI quick test — 28 questions, 5 minutes, get your 4-letter type with detailed reading.
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Meat Doneness Temperature Chart
Pick a meat and a doneness, get the internal cooking temperature in °F and °C, with the USDA safe minimum and the chef target side by side
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Meeting Cost Calculator
Meeting cost calculator — see how much that meeting is costing in real-time, with team salary data and overhead multiplier.
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Megapixel Calculator
Width × height → megapixels, aspect ratio, file size, and max print size at any DPI. Reverse it too. 100% in your browser.
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Meta Description Brief Generator
Generate SEO meta description options from a page topic, keywords, and audience.
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Meta Tag Generator
Generate SEO meta tags — title, description, Open Graph, Twitter Card, Schema.org.
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Online Metronome
Rock-steady practice metronome — tap tempo, time signatures, accented downbeat, subdivisions. Web Audio, nothing recorded, nothing uploaded.
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MIDI Note Number Converter
MIDI number ⇄ note name ⇄ frequency — note 60 is middle C, A4 = 440 Hz, cents off, C3/C4 toggle — browser-only
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Mirror Text Generator
Turn words into looking-glass text — each letter flipped (b↔d, e→ɘ, R→Я) and the line reversed — browser-only, one-click copy
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Monogram Generator
Type a name, get an etiquette-correct monogram — traditional surname-in-centre or modern equal-size, circle/square/diamond frame, copy or download the SVG — browser-only
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Moon Phase Calculator
Pick any date, see the moon phase, illumination percentage and moon age, plus this month's principal phases, all in your browser
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Morse Code Translator
Text to Morse code and back — encode, decode, audio playback, ITU standard.
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Mortgage Calculator
Mortgage calculator — monthly payment, total interest, amortization schedule, early payoff scenarios.
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Music Interval Calculator
Two notes in, the interval out: name, semitones, frequency ratio and cents, plus a reverse build from root plus interval
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Chord & Note Transposer
Move a whole progression up or down by semitones or to any key, suffix and slash bass kept, sharp or flat your call
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Multicultural Name Generator
Random names from 11 cultures — Chinese, English, Japanese, Korean, Arabic, Russian + 5 European.
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Nashville Number System Converter
Chords to numbers and back in any key — 1 4 5 6m, slash bass, 7/maj7 suffixes kept, one-click copy — browser-only
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Note Frequency Calculator
Note name ⇄ frequency (Hz) — A4 = 440/432/442, MIDI number, cents off — browser-only
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Ordinal Number Converter
Cardinal to ordinal both ways: 1st 2nd 3rd suffixes, twenty-first words, plus Chinese 第N, single or batch, copy ready
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Oven Temperature Converter
Convert °F, °C and gas mark instantly — plus the fan-oven setting and the recipe heat band, all in your browser
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China Overtime Pay Calculator
China overtime pay calculator — workday 1.5×, weekend 2×, statutory holiday 3× per Labor Law Art. 44, with 31 provincial minimum-wage tables.
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Ovulation & Fertility Tracker
Ovulation & fertility tracker — predict next 6 months of fertile windows, track BBT, find best conception days.
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Palmistry Guide — 6 Major Lines & 7 Mounts with Diagrams
Palmistry guide — 6 major lines + 7 mounts explained with diagrams, traditional readings, bilingual.
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Passer Rating Calculator
NFL quarterback passer rating from completions, attempts, yards, TDs and INTs — with the NCAA college formula and a perfect-158.3 check — browser only
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Password Leak Checker
Password leak checker — check if your password has been seen in known breaches using k-anonymity (HIBP API style), the password never leaves your browser.
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PDF Merger
PDF merger — combine multiple PDFs into one, drag to reorder pages, 100% client-side with pdf-lib.
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PDF Splitter
PDF splitter — extract pages or split by range, every page becomes a PDF, 100% client-side with pdf-lib.
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Periodic Table
Interactive periodic table — 118 elements, properties, electron config, search.
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Pet Age Calculator
Pet age calculator — accurate dog/cat human-age equivalent, with breed size adjustment, lifespan stages.
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Pet Food Calculator
Pet food calculator — RER + activity factor for dogs and cats, exact daily grams based on weight, age, neuter status, and kibble kcal/100g.
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Piano Chord Finder
Piano chord finder — type any chord (Cmaj7, F#m, Bdim) and see the keys highlighted on a piano, with notes and inversions.
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Pig Latin Translator
English to Pig Latin and back, in your browser. pig becomes igpay, egg becomes eggway, with case and punctuation kept.
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Pigpen Cipher
Turn letters into Masonic grid-and-X symbols, drawn live as SVG, with a plain-text key so you can decode it back, browser-only
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Pizza Dough Calculator
Baker's percentage pizza dough — flour, water, salt, yeast, oil by weight — browser-only
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Pluralizer
Turn singular English nouns into plurals and back, with irregulars, -ies, -ves and uncountables handled, all in your browser
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Pomodoro Timer
Pomodoro timer — 25/5 classic, plus 50/10 and 90/15 long-focus modes, with sound, browser tab title, daily stats.
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Portuguese 500 Essential Words
Portuguese 500 essential words — A1 to A2 Brazilian Portuguese, with IPA, gender, conjugation, audio TTS.
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Power-to-Weight Ratio Calculator
Power ÷ weight in W/kg, hp/ton and kW/kg — cars and cycling, forward and reverse, browser-only
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Pregnancy Due Date Calculator
Pregnancy due date calculator — track weeks, trimester, baby development by week.
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Prompt Template Library
200+ prompt templates for ChatGPT, Claude, Gemini — copy-paste, browse by use case.
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China Property Fee Calculator
Property fee calculator — calculate Chinese residential management fees, garage, heating, elevator, with regional rate references.
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Protein Intake Calculator
Protein intake calculator — daily grams by body weight, activity, goal (cut/maintain/bulk), per ISSN 2017 guidelines.
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QR Code Decoder
QR code decoder — drag a QR image or paste URL, see the text/URL inside, plus phishing & risky-link warnings.
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Random Number Generator
Generate cryptographically-secure random integers — single or batch, with/without duplicates — browser-only
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Readability Score Checker
Paste English text and get Flesch Reading Ease plus five grade-level scores, syllable counts, and reading time — runs entirely in your browser
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Reading Time Calculator
Paste text, get an accurate "X min read" plus a separate speaking time — counts CJK by character and English by word, all in your browser
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Recipe Scaler
Recipe scaler — paste any recipe, change servings, get all ingredient amounts auto-scaled. Handles fractions and unit conversion.
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Regex Builder from Examples
Regex from examples — paste positive matches + negative non-matches, get a regex that hits all positives and rejects all negatives, with multiple candidate patterns ranked by specificity.
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Regex Tester
Test JavaScript regex live — match highlighting, group capture, replace preview, flag toggles — browser-only
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Remove Accents
Strip diacritics from Latin text, café to cafe, ñ to n, ß to ss, runs entirely in your browser
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Remove Line Breaks
Strip or replace line breaks, join wrapped lines into running text — keep-paragraphs mode, CRLF/CR/LF normalize, live preview — browser-only
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Resume Template Builder
Resume template builder — fill a form, get a clean PDF resume in 3 templates (modern / classic / minimal), bilingual.
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Reverse Text Generator
Reverse text by character, word or line, flip each word, or turn writing upside down — Unicode and emoji safe, runs in your browser
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Ring Size Converter
US ⇄ UK ⇄ EU ⇄ JP ⇄ CN ⇄ inner circumference & diameter (mm) — type any one, get every size at once — browser-only
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robots.txt Generator
Generate robots.txt with templates for common crawlers (Google, Bing, AI scrapers).
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Roman Numeral Date Converter
Turn any date into Roman numerals for tattoos, wedding bands, copyright years and cornerstones, then read them back the other way, all in your browser
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ROT13 Encoder & Decoder
ROT13 / ROT47 / Caesar cipher — encode and decode in your browser, instant.
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Rune Translator
Turn English into Elder Futhark runes and read runes back into letters, right in your browser
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Running Pace Calculator
Running pace calculator — convert between pace / time / distance, predict 5K/10K/half/full marathon from one race.
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Russian 500 Essential Words (TORFL A1-A2)
Russian 500 essential words covering the full TORFL A1-A2 syllabus, with Cyrillic, stress marks, BGN/PCGN romanization, gender, full verb conjugation, and audio TTS.
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Safe Period & Ovulation Calculator
Period & ovulation calculator — predict next period, fertile window, safe days (based on calendar method).
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Savings Goal Tracker
Savings goal tracker — set a target (down payment, trip, emergency fund), see weekly/monthly contribution and projected date.
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Scrabble Score Calculator
Type a word, get its Scrabble tile value, with double/triple letter and word premiums and blank tiles, all in the browser
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Screen Time Budget
Screen time budget — track and visualize daily screen time across phone/tablet/PC, with age-based recommendations from WHO/AAP.
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Secret Santa Generator
Paste your name list, draw who gives to whom, nobody draws themselves, exclude couples, send each match privately, runs in your browser
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Semaphore Flag Translator
Text to flag semaphore and back, two flag angles per letter with a drawn signaller, numeric sign for digits, runs only in your browser
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Chinese Zodiac Compatibility (Shengxiao Match)
Chinese zodiac compatibility — match two people by their zodiac signs, 144 pair combinations with reading.
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Shoe Size Converter
US ⇄ UK ⇄ EU ⇄ CN ⇄ JP + foot length (cm/in) — men, women, kids — browser-only
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Sitemap URL Auditor
Paste sitemap XML and audit URL count, HTTP links, duplicates, trailing-slash conflicts, query parameters, lastmod freshness, and extensions.
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Sleep Cycle Calculator
Sleep cycle calculator — 90-minute REM cycles. Find best bedtime if you must wake at X, or best wake time if you sleep at Y.
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Sleep Debt Calculator
Sleep debt calculator — track this week's sleep hours, see your accumulated debt, get a realistic recovery plan based on research.
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Slogan Generator
Slogan generator — 30+ proven copywriting formulas, generate brand slogans in seconds, bilingual.
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URL Slug Generator
Turn any title into a clean URL slug — lowercase, dashes, ASCII-safe transliteration, multiline batch — browser-only
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Small Caps Generator
Turn plain text into ꜱᴍᴀʟʟ ᴄᴀᴘs, real Unicode you can paste into an Instagram bio, Discord or X, one click to copy
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Smart Quotes Converter
Straight quotes to curly quotes and back, with smart apostrophes, en and em dashes, and ellipsis, all in your browser
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Social Media Aspect Ratio Guide
Social media aspect ratio guide — Instagram / TikTok / YouTube / X / LinkedIn / Xiaohongshu / Bilibili exact pixel dimensions and ratios.
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Social Handle Deduplicator
Find duplicates and keep one clean copy of social handles from pasted text or uploaded local files.
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Social Handle Extractor
Extract, dedupe, and export social handles from pasted text or uploaded local files.
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Social Handle List Converter
Convert social handles from pasted text or uploaded local files.
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Social Handle List Validator
Validate and explain issues in social handles from pasted text or uploaded local files.
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Social Handle Normalizer
Normalize, sort, and prepare social handles from pasted text or uploaded local files.
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Social Media Character Counter
Count characters against real X, Instagram, Weibo, LinkedIn, TikTok and SMS limits as you type, all in your browser
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Spanish 500 Essential Words
Spanish 500 essential A1–A2 words — start speaking Spanish today, with pronunciation, example sentences, verb conjugations and audio TTS.
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Stair Climbing Calorie Calculator
Stair climbing calorie calculator — calculate kcal burned by floors climbed, with METs-based formula.
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Steps to Distance Calculator
Steps ⇄ distance from your stride: type a stride or estimate it from height, see km or miles, and find how far 10,000 steps go — browser-only
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Strength 1RM & Training Program
Strength 1RM calculator + training program — 6 formulas (Epley/Brzycki/Lombardi/O'Conner/Lander/Mayhew), %1RM table, Wendler 5/3/1 + Sheiko + Madcow templates.
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Strip HTML Tags
Paste HTML source, get clean plain text. Block tags become line breaks, entities decode, allow-list keeps chosen tags, script content gets removed — all in your browser.
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Sudoku Generator
Sudoku generator and solver — 4 difficulties (easy / medium / hard / expert), unique-solution guaranteed, play in the browser or print as PDF.
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Superscript & Subscript Text Generator
Turn x2 into x², H2O into H₂O — real Unicode you can paste into Instagram, a spreadsheet or a video title, no rich text needed
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Swim Pace Calculator
Solve any one of pace, time, or distance from the other two, with per-100 splits, pool-length lap time, and metre to yard conversion, all in your browser
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Syllable Counter
Count syllables in any English word or text, with a 5-7-5 haiku mode for poems
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System Prompt Builder
Turn role, task, constraints, and output rules into a structured system prompt you can copy.
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Tarot Reading (78-Card Rider-Waite-Smith Deck)
Tarot reading — full 78-card deck, 4 spreads (one-card / three-card / Celtic Cross / love), bilingual interpretations.
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TDEE Calculator
TDEE calculator — BMR × activity factor, with cut/bulk calorie targets and projected weekly weight change.
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Tempo Delay Calculator
Turn any BPM into a full delay-time table — milliseconds and Hz for every note value, plus dotted and triplet. Built for mixing and producing.
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Text Box Drawing Generator
Wrap text in single, double, rounded, bold, ascii or stars boxes with CJK-aware alignment, padding and a title row, all in your browser
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Text Deduplicator
Remove duplicate lines from any list — case-sensitive optional, whitespace-trim optional, count duplicates — browser-only
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Text Diff
Compare two blocks of text — line-by-line additions, deletions, equal — colour highlighted, browser-only
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Text Repeater
Repeat any text N times with newline, space, comma or custom separators, optional numbering and a wrap, browser-only
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Text Sorter
Sort lines alphabetically, naturally (file2 < file10), numerically, by length — locale-aware — browser-only
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Text to Speech
Read any text aloud with your browser's built-in voices — pick voice, speed, pitch, volume — 100% local, nothing uploaded
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Text Wrap
Hard-wrap text at any column width, by word or by character, with optional line prefix, all in your browser
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Thai 500 Essential Words
Thai 500 essential A1–A2 words — Thai script + RTGS + IPA + 5 tones + audio TTS.
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Tip Calculator
Tip & split calculator — calculate tip by percentage, split bill among friends, round-up options, multi-currency.
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Tip & Split Bill Calculator
Tip percent, grand total, per-person share, pre-tax or post-tax, round-up split, browser-only
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Title Case Converter
Capitalize an English title the way editors do, AP / Chicago / APA / MLA, small words stay down, acronyms kept, runs in your browser
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Tournament Bracket Generator
Paste a name list, get a single-elimination bracket in one click, auto BYE padding, seeded or shuffled, browser-only
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Traditional ⇄ Simplified Chinese Converter
Traditional ⇄ Simplified Chinese — fast, character-level, no API.
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Trip Cost Splitter
Split group trip, dinner & shared-flat costs — track who paid what, who joined which expense, and get the fewest transfers to settle up. 100% in your browser.
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Turkish 500 Essential Words
Turkish 500 essential A1–A2 words — Istanbul standard + IPA + vowel harmony + audio TTS.
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Typing Speed Test
Typing speed test — WPM, accuracy, real-time mistakes, English + Chinese pinyin modes.
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Unicode Inspector and Normalizer
Inspect code points, names, categories, UTF-8 bytes and normalize text to NFC, NFD, NFKC or NFKD entirely in your browser.
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Unit Price Comparison Calculator
Compare price per 100 g, per litre or per piece across packs — normalize g⇄kg and mL⇄L, flag the cheapest, copy the result — browser-only
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Unslugify
Turn my-blog-post, user_first_name and parseHTMLContent back into readable text, browser-only
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URL Deduplicator
Find duplicates and keep one clean copy of urls from pasted text or uploaded local files.
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URL Extractor
Extract, dedupe, and export urls from pasted text or uploaded local files.
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URL List Converter
Convert urls from pasted text or uploaded local files.
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URL List Validator
Validate and explain issues in urls from pasted text or uploaded local files.
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URL Normalizer
Normalize, sort, and prepare urls from pasted text or uploaded local files.
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Username Generator
Random usernames in five styles, four case formats, optional numbers, batch up to 50, all in your browser
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UTM Link Builder
UTM link builder — track campaign source, medium, name. GA4/Google Analytics compatible.
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China Vehicle Purchase Tax Calculator
China vehicle purchase tax calculator — 10% rate on tax-exclusive price, with NEV exemption rules, plus on-road cost breakdown.
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Video Bitrate Calculator
File size = bitrate × duration ÷ 8 — solve any one of bitrate, length or size, add audio, copy in one click — browser-only
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Vietnamese 500 Essential Words
Vietnamese 500 essential A1–A2 words — chữ Quốc ngữ + IPA + 6 tones + audio TTS.
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Water Intake Calculator
Water intake calculator — daily water target by body weight, activity, climate. With drink-log to track today's progress.
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Wedding Budget Planner
Wedding budget planner — itemized cost calculator with regional benchmarks for venue, photography, catering, etc.
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Weekly Report Generator
Weekly report generator — fill blanks, get clean markdown, no AI hallucination.
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Weight Loss Tracker & Calorie Deficit Calculator
Weight loss tracker — set target, log daily weight, see trend, project goal date with real calorie math.
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Weight Training Tracker — 1RM Calculator & Strength Progress Log
Weight training tracker — log compound lifts (squat/bench/deadlift/OHP), track 1RM via Epley formula, see strength gains by week.
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Wilks Score Calculator
Normalise a powerlifting total across bodyweights with the classic 1994 Wilks coefficient — kg or lb, instant score, browser-only
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Win Rate Calculator
Wins ÷ total games × 100% with draws, plus the win streak you need to hit a target rate and how many losses you can afford, browser-only
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Word Counter
Count words, characters, sentences, paragraphs and reading time in any text — instant, browser-only
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Word Frequency Counter
Rank every word + phrase by frequency, with keyword density, stop-word filtering, and n-gram analysis — browser-only
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Word Scrambler
Jumble the letters in any word, check if two words are anagrams, or list every ordering of a short word, all in your browser
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Words Per Minute Calculator
Solve any of words, minutes, and WPM — paste a speech to estimate read-aloud time, with speaking-rate presets and one-click copy — browser-only
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Words to Number Converter
Type a number in English or Chinese words, get the digits back — one hundred twenty-three → 123, 一万两千三百 → 12300 — browser-only
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Work Anniversary Calculator
Work tenure calculator — service years, annual leave entitlement (China), retirement countdown.
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Wuxing Name Recommender (Five Elements Naming)
Five Elements (Wuxing) name recommender — based on Bazi gaps, suggest characters that balance the missing elements.
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Yoga Pose Library
Yoga pose library — 60+ asanas with Sanskrit + Chinese + English names, benefits, contraindications, modifications.
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YouTube Title Analyzer
Score a YouTube title for clarity, specificity, length, and keyword position.
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Zalgo Text Generator
Glitch your words into cursed, dripping Zalgo text with combining marks, then strip it clean in one tap, all in the browser