All Tools
Developer Tools
JSON, regex, JWT, and coding utilities. 9 tools available.
JSON Formatter & Validator
Free
Format, validate, tree-view, schema-gen, type-gen, diff. 100% browser-side.
Base64 Encoder/Decoder
Free
3 variants side by side, image preview, hex dump fallback.
Regex Tester
Free
Live regex tester with multi-flavor compare and click-to-insert cheatsheet.
CSS Gradient Generator
Free
Create beautiful CSS gradients with a visual editor.
JWT Decoder
Free
Decode + sign + verify HS256/384/512 in browser.
SQL Formatter
Free
5 dialects, auto-detect, 3 keyword-case modes, browser-only.
QR Code Generator
Free
19 QR types with styling, logo, scanner, batch CSV, and scannability score.
Cron Expression Parser
Free
Read any cron expression in plain English, with the next 10 run times.
Color Palette Generator
Free
7 harmonies, WCAG audit, image extract, 6 export formats.