Developer Tools
Everyday tools, zero friction
Each tool runs entirely in your browser. Nothing you paste is ever sent to a server.
JWT Decoder
Decode and inspect JSON Web Tokens without leaving your browser.
JSON Formatter
Format, validate, and minify JSON with instant feedback.
Regex Tester
Test regular expressions live against your sample text.
UUID Generator
Generate RFC-4122 v4 UUIDs in bulk, copy with one click.
Cron Generator
Build and explain cron expressions in plain English.
Base64 Encoder
Encode and decode Base64 text and files safely client-side.