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Developer tools
Small utilities that run entirely in your browser. No sign-up, and nothing you paste is uploaded.
Data & encoding
JSON formatter
Format, validate, and minify JSON.
JWT decoder
Decode, inspect, and re-encode JSON Web Tokens.
Base64
Encode and decode Base64, with URL-safe and no-padding options.
URL encoder
Encode and decode URL components or full URLs.
Hash generator
MD5, SHA-1, SHA-256, and SHA-512 hashes of any text.
Generators
UUID generator
UUID v4 (random) or v7 (time-ordered), one or fifty at a time.
Password generator
Random passwords from the character sets you choose.
QR code generator
QR codes from text or URLs, as PNG or SVG.
Lorem ipsum
Placeholder paragraphs, sentences, or words.
Text
Regex tester
Test a pattern against text with live match highlighting.
Diff checker
Compare two texts line by line.
Text case converter
camelCase, snake_case, kebab-case, Title Case, and more.
Time
Timestamp converter
Unix timestamps to dates and back, with a live clock.
Cron helper
Read a crontab schedule in plain English and see its next run.
Timer
A stopwatch and a Pomodoro timer.
Web & design
CORS tester
Send a cross-origin request and inspect the CORS headers.
Color converter
Convert between HEX, RGB, and HSL with a picker.
