About
Why I ❤ Devs exists
Most online dev tools upload your input to a server you know nothing about. For a JWT, a private key or a client's JSON that is a bad trade.
Everything runs locally
Each tool is a small piece of JavaScript executed in your tab. There is no API, no queue and no upload — the result appears as fast as you can type, and the page works offline after the first load.
Built for the keyboard
Paste, transform, copy, move on. Options sit under the panes and apply instantly; every output can be copied or downloaded.
Themes
Ten accent colours and a light/dark switch. Your choice is stored locally in your browser — never on a server.