Developer & DevOps for Content Creator
40 developer & devops tools hand-picked for Content Creator.
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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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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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Case Converter
Convert text between camelCase, snake_case, kebab-case, PascalCase, Title Case, UPPER, lower — instant, browser-only
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Chinese Idiom Search
800+ everyday chengyu — pinyin, origin, usage.
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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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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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Duplicate File Finder
Upload a batch and find exact duplicate files by SHA hash locally, with a Markdown cleanup report.
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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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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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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 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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Image Compressor (Local)
Image compressor — squeeze JPG/PNG/WebP without server upload, with quality slider, batch mode, file size comparison.
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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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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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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 to HTML
Convert Markdown to clean HTML — headings, lists, code, links, images, tables — instant live preview, browser-only
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Meta Tag Generator
Generate SEO meta tags — title, description, Open Graph, Twitter Card, Schema.org.
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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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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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robots.txt Generator
Generate robots.txt with templates for common crawlers (Google, Bing, AI scrapers).
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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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URL Slug Generator
Turn any title into a clean URL slug — lowercase, dashes, ASCII-safe transliteration, multiline batch — 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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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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UTM Link Builder
UTM link builder — track campaign source, medium, name. GA4/Google Analytics compatible.