Free tools that just work
Calculators, converters, and dev tools that run entirely in your browser. No sign-up, no uploads, no waiting.
Calculators
Calculator
A simple, standard calculator for everyday arithmetic.
Percentage Calculator
Find a percentage of a number, work out percentage change, and more.
Age Calculator
Calculate exact age in years, months, and days from a birth date.
Discount Calculator
Work out the sale price and savings after a percentage discount.
Profit Margin Calculator
Calculate profit, margin percentage, and markup from cost and revenue.
Compound Interest Calculator
Project investment growth with compound interest over time.
Text & Dev Tools
Password Generator
Generate strong, random passwords with custom character sets.
Word Counter
Count words, characters, sentences, and paragraphs as you type.
Word Unscrambler
Find every valid word you can make from a set of letters.
JSON Formatter
Format, validate, and minify JSON with clear error messages.
Base64 Encoder
Encode text into Base64 format, right in your browser.
Base64 Decoder
Decode Base64 strings back into readable text.
URL Encoder
Percent-encode text and special characters for use in URLs.
URL Decoder
Decode percent-encoded URLs back into readable text.
UUID Generator
Generate random UUID v4 identifiers, one or in bulk.
Regex Tester
Test regular expressions against sample text with live match highlighting.
JWT Decoder
Decode a JSON Web Token's header and payload without verifying it.
QR Code Generator
Turn any text or URL into a downloadable QR code.
Converters
Unit Converter
Convert between length, weight, temperature, volume, area, and speed units.
Time Zone Converter
Convert a time between two time zones.
Currency Converter
Convert between world currencies using live exchange rates.
Image Tools
Image Resizer
Resize images to exact dimensions right in your browser.
Image Compressor
Shrink image file size while preserving quality.
Image Cropper
Crop images to any aspect ratio in your browser.
JPG to PNG
Convert JPG images to PNG format.
PNG to JPG
Convert PNG images to JPG format.
HEIC to JPG
Convert iPhone HEIC photos to JPG format.
PDF Tools
JPG to PDF
Combine JPG images into a single PDF file.
PDF to JPG
Export PDF pages as JPG images.
Compress PDF
Reduce PDF file size.
PDF to Word
Convert PDF documents to editable Word files.