Create, test, and validate regular expressions with a pattern library and generator.
No sign-up, no limits, no tracking. Just works.
JSON Formatter
Format, beautify, minify, and validate JSON. Includes tree view for exploring complex data.
Base64 Encoder
Encode and decode Base64 strings and files. Includes JWT decoder mode.
JWT Decoder
Decode and inspect JWT tokens. View header, payload, and signature with expiration status.
Cron Expression Builder
Build and validate cron expressions with a visual editor. Preview next execution times.