Developer tools
Four tools. One tab. Zero signup.
JSON formatting, Base64 encoding, regex testing, and UUID generation — each one fast, each one running entirely in your browser. Nothing you paste here ever leaves your machine.
{ }
JSON Formatter
Pretty-print, minify, and validate JSON with clear error messages.
01→Az
Base64 Encode / Decode
Convert text to Base64 and back, with full Unicode support.
/.*/
Regex Tester
Live match highlighting, capture groups, and flag support.
#4a1f
UUID Generator
Generate up to 100 cryptographically random v4 UUIDs at once.