Tools
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Open Source · MIT License

Developer Toolkit

12 powerful utilities in one beautiful app. Zero installs, zero backend, works completely offline.

100% OfflinePrivacy FirstZero DependenciesOpen Source
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JSON Formatter
Format, validate & minify JSON
Regex Tester
Live regex match highlighting with groups
Color Converter
HEX · RGB · HSL converter, palettes & contrast
Markdown Preview
Live side-by-side markdown editor
CSS Gradient Builder
Visual gradient creator with CSS output
Base64 Codec
Encode & decode text or files
Hash Generator
MD5-like, SHA-1, SHA-256, SHA-512 hashing
UUID Generator
Generate UUID v4 in bulk
Password Generator
Strong, configurable password generator
Text Diff Viewer
Side-by-side text & code diff comparison
URL Encoder
Encode, decode & parse URLs
JWT Decoder
Inspect & decode JWT tokens