Developer Tools
Format JSON, encode strings, generate hashes, and convert colors. Everyday utilities that run instantly in your browser.
Built for Developers
Essential encoding, formatting, and conversion tools. No signups, no limits.
Password Generator
Random, passphrase, PIN
UUID Generator
v1, v4, v5, v7 + bulk
HMAC Generator
HMAC-SHA256 webhook signatures
File Checksum
MD5 + SHA hashes of any file
Verify Checksum
Match a published hash to a file
Random Secret
JWT secrets, API keys, webhook keys
Timestamp Converter
Unix epoch ↔ date, ISO, ms
Regex Generator
Generate regex from sample strings
Regex Tester
Test regex with live highlighting
Cron Expression Tester
Validate cron + next fire times
Hash Generator
MD5, SHA + HMAC signing
Base64 Encode/Decode
Encode and decode Base64 strings
JWT Decoder
Decode JWT header, payload + claims
URL Encode/Decode
Encode and decode URLs
Color Converter
Convert HEX, RGB, HSL colors
QR Code Generator
Generate QR codes from text or URLs
Markdown to HTML
Convert Markdown to HTML
Markdown Editor
Write Markdown with live preview
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