// 10 tools · client-side · zero tracking

Dev tools that
just work.

Fast, private, browser-based utilities for developers and designers. No login. No upload. No nonsense.

Browse Tools → GitHub
10
Tools
0ms
Server calls
100%
Client-side
// tools

Everything you need

{ }
JSON Formatter & Validator
Beautify, minify, and validate JSON instantly. Highlights errors with line numbers.
formatter
🔑
JWT Decoder
Decode and inspect JWT tokens. View header, payload, and expiry — all client-side.
auth
.*
Regex Tester
Test and debug regular expressions with real-time match highlighting and group output.
testing
⏱
Unix Timestamp Converter
Convert between Unix timestamps and human-readable dates instantly.
datetime
64
Base64 Encoder / Decoder
Encode or decode Base64 strings and files right in your browser.
encoding
#
UUID Generator
Generate v4 UUIDs in bulk. Copy single or multiple with one click.
generator
⚙︎
SQL Formatter
Beautify raw SQL queries. Supports MySQL, PostgreSQL, and more.
database
🖼
Image Compressor
Compress JPEG/PNG images in-browser. No uploads to any server — ever.
images
◑
Color Contrast Checker
Check WCAG AA/AAA contrast ratios. Essential for accessible UI design.
accessibility
✦
CSS Beautifier & Minifier
Format messy CSS or minify it for production in one click.
css
⚡
Instant
Everything runs in your browser. No waiting for servers. No round trips.
🔒
Private
Your data never leaves your machine. No accounts, no logging, no tracking.
🛠
Built for Devs
Clean interface, keyboard-friendly, dark mode. Tools made by devs, for devs.