Every developer tool
you open and close.
In one tab.
Formatters, minifiers, converters, regex, JWT, diff — the small instruments you reach for ten times a day. All run in your browser. Nothing leaves the page.
Four working tools, right here.
Type into any of the four tabs below - everything runs in your browser. Open the full version to save patterns, drag files, and use keyboard shortcuts.
The catalog.
Built like a tool, not a service.
Every transformation runs in JavaScript on this page. We have no API, no analytics, and no telemetry — not even a cookie banner.
Loads on a train, on a plane, on hotel Wi-Fi. Tools are lazily loaded only when you open them.
A single keystroke jumps to any tool. Once you've opened it, the page remembers your last input — locally.
No accounts. No upsell tier. No "Pro" button that hides the good features. We pay our own hosting.