100% client-side · nothing uploaded

Developer & security tools,
private by design.

A fast hub of the utilities you reach for every day — password generation with breach checks, JSON, JWT, Base64, hashing, UUIDs, QR codes and more. Everything runs locally in your browser.

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Password Generator with Breach Check Generate strong, random passwords and instantly check if they’ve appeared in a data breach — privately, in your browser. JSON Formatter & Validator Beautify, minify and validate JSON with clear error messages — fast and private. JWT Decoder Decode and inspect JSON Web Tokens — header, payload and expiry — without sending them anywhere. QR Code Generator Create high-resolution QR codes for links, text or Wi-Fi and download them as PNG or SVG.

Runs in your browser

Passwords, tokens and text you paste never leave your device. No servers, no logs, no uploads.

Fast & no sign-up

Instant results, keyboard-friendly, zero friction. Open a tool and go.

Built for engineers

Correct edge cases, sensible defaults, copy-ready output. The details you actually care about.

Security & Privacy

Passwords, hashes and what your browser leaks

Password Generator Password Strength Hash Generator WebRTC Leak Test

Encoders & Formatters

Encode, decode and prettify data

JSON Formatter Base64 JWT Decoder URL Encoder

Generators

IDs, QR codes and more

UUID Generator QR Code

Developer Utilities

Everyday tools for building software

Regex Tester Cron Parser Timestamp Converter

Developer & security tools,private by design.