Developer tools overview
Free utilities for JSON, Base64, regex, hashing, and other developer tasks. Built for quick browser-side workflows.
Recommended Tools
JSON Formatter
Format and validate JSON. Paste minified JSON, get pretty-printed output.
⚡ Browser Only🔒 No Upload🚀 Instant Processing
Base64 Encode/Decode
Encode and decode Base64 strings. Supports Unicode.
⚡ Browser Only🔒 No Upload🚀 Instant Processing
URL Encode/Decode
Encode and decode URL-encoded strings. Percent-encoding.
⚡ Browser Only🔒 No Upload🚀 Instant Processing
Regex Tester
Test regular expressions against sample text. Highlight matches with g, i, m flags.
⚡ Browser Only🔒 No Upload🚀 Instant Processing
Hash Generator
Generate MD5, SHA-256, SHA-512 hashes. Paste text, get hash.
⚡ Browser Only🔒 No Upload🚀 Instant Processing
Timestamp Converter
Convert between Unix timestamp and human-readable date.
⚡ Browser Only🔒 No Upload🚀 Instant Processing
Cron Expression Generator
Generate cron expressions visually.
⚡ Browser Only🔒 No Upload🚀 Instant Processing