Tools for HR

34 hand-picked tools for HR. Free, private, browser-based.

Age Calculator

Calculate your exact age — years, months, days, hours. Compare two dates or count to a future date.
Blood Alcohol Content (BAC) Calculator

Widmark-formula BAC estimate from drinks, body weight, sex and time — educational only, never a fit-to-drive verdict — browser-only
BMI Calculator

Body Mass Index calculator with WHO + Asian classifications — metric and imperial — browser-only
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
Calories Burned Calculator

MET-based calorie burn for 30+ activities — running, cycling, swimming, HIIT, housework — stack and total — browser-only
CSV Column Extractor

Upload or paste CSV, keep only selected columns by name or index, and export a smaller privacy-safe file.
CSV Deduplicator

Remove duplicate CSV rows by full row or selected key columns from uploaded files, locally and safely.
CSV Filter

Filter uploaded CSV rows by column value using contains, equals, or regex, with local browser processing.
CSV Header Normalizer

Standardize CSV header rows to snake_case, kebab-case, camelCase, or Title Case before imports and scripts.
CSV Sorter

Sort uploaded CSV rows by a selected column with numeric-aware ordering and local-only processing.
CSV ⇄ JSON Converter

Convert CSV to JSON or JSON to CSV — handles quoted commas, newlines in cells, custom delimiter — browser-only
CSV to Markdown Table

Convert uploaded or pasted CSV into clean Markdown tables with quoted-cell support, locally in the browser.
CSV to TSV Converter

Convert CSV files to tab-separated values while preserving quoted commas, quotes, and multiline cells locally.
Date Difference Calculator

Days / weeks / months / years between two dates — plus business-days mode — browser-only
File MIME Type Inspector

Upload files and inspect filename, size, browser MIME type, extension, and magic-byte signature locally.
Ideal Weight Calculator

Devine + Robinson + Miller + Hamwi formulas, side by side, plus the healthy BMI weight band — metric and imperial — browser-only
China Income Tax Calculator

China personal income tax calculator — monthly, annual, with 5 insurance + 1 fund deductions.
Password Generator

Generate strong, cryptographically random passwords and passphrases — entirely in your browser.
Percentage Calculator

5 common percentage calculations — "x% of y", "x is what% of y", percentage change, increase/decrease — instant, browser-only
Barbell Plate Calculator

Target weight → exactly which plates to slide on each end — kg & lb, with a live barbell diagram — browser-only
Pregnancy Weight Gain Calculator

Pre-pregnancy BMI + week → IOM recommended total gain, the by-week target, and an on-track check — singleton & twins — browser-only
Random Number Generator

Generate cryptographically-secure random integers — single or batch, with/without duplicates — browser-only
Salary Raise Calculator

Turn a raise into real numbers — new salary by year/month/hour, dollar increase, and the inflation-adjusted raise that tells you if you actually came out ahead
Salary to Hourly Converter

Hourly ⇄ daily ⇄ weekly ⇄ monthly ⇄ annual pay — set your hours/week and weeks/year, see all five at once — browser-only
Take-Home Pay Calculator

Gross → net pay, any country — your own tax rate, pre-tax & post-tax deductions, reverse-solve — browser-only
Time Card Calculator

Weekly time card — clock in/out + lunch → daily hours, weekly total, gross pay, 40h overtime — browser-only
Time Duration Calculator

Hours between two times, add or subtract time, and add up a timesheet — decimal hours + pay — browser-only
Timezone Converter

Convert any time between any two timezones — DST-aware, IANA database — browser-only
Timezone Meeting Planner

Plan meetings across timezones — see when everyone's working hours overlap.
TSV to CSV Converter

Turn tab-separated files into standards-friendly CSV with proper quoting, download, and local processing.
Unit Converter

Convert between length, weight, temperature, area, volume, speed, time — instant, browser-only
Waist-to-Hip Ratio Calculator

WHR = waist ÷ hip, scored against the WHO health-risk bands by sex, with an optional waist-to-height check — runs entirely in your browser
Weekly Report Generator

Weekly report generator — fill blanks, get clean markdown, no AI hallucination.
Work Anniversary Calculator

Work tenure calculator — service years, annual leave entitlement (China), retirement countdown.