v1.0 — three tools, zero tracking

The developer toolbox that never phones home

Format JSON, encrypt with just a password, and measure your screen — all running 100% in your browser. Fast, elegant, and private by design.

Runs offline
No data leaves your browser
Instant, no sign-up

The toolbox

Three sharp tools. One quiet promise.

Each tool is built to feel instant and stay out of your way — and none of them ever sends your data anywhere.

JSON Formatter

Beautify, minify and validate JSON with pinpoint error locations, an interactive tree, key sorting and live stats.

Crypto & Encoders

Encrypt with just a password — no IV juggling. Plus hashing, HMAC signing and Base64 / URL / Hex encoders.

Screen Ruler

A calibrated on-screen ruler in cm, mm, inches and pixels. Calibrate to your display and measure real-world lengths.

Private by architecture

Your data never touches a server — because there isn't one.

Every computation happens locally in your browser. Paste a production secret or a private API payload without a second thought. Close the tab and it's gone.

0: bytes uploaded
100%: client-side
∞: free to use

Keyboard-first

Format, copy and clear without lifting your hands off the keyboard.

Open source