DevTools Hub
Fast, accessible tools for everyday development tasks.
Regex Playground
Test patterns, flags, groups and replacements with live highlighting.
JSON Beautifier
Validate, format, minify and sort keys. Copy or download.
Markdown Previewer
Edit Markdown with live, sanitized preview and toolbar.
Image Compressor
Compress PNG/JPG in the browser. Control quality and size.
Unit Converter
Convert length, mass, temperature, time, data, and currency.
Developer Tools
Color Palette
Generate tints and shades from a base color; copy hex.
Base64 Encode/Decode
Encode or decode text with UTF‑8; copy output.
Hash Generator
MD5, SHA‑1, SHA‑256 using browser crypto.
Diff Checker
Compare texts and highlight additions/removals.
Code Formatter
Format code with Prettier (lazy‑loaded).
JWT Decoder
Decode JWT header and payload.
Data & File Tools
CSV ⇄ JSON
Convert CSV to JSON and back; paste or download.
Text Case Converter
camelCase, snake_case, Title, kebab, CONSTANT.
QR Code Tools
Generate QR codes or read them from images.