A drawer of precise tools that never phone home.
SmartTools exists for the moment you need an EMI, a formatted JSON file or a QR code, and want the answer in seconds — without an account, an upload or an advert in the way.
Your files stay on your device
Every tool runs inside your browser. There is no server to upload to, so nothing you type, paste or drop leaves this page — you can check the network tab yourself.
Works without a connection
Install it or visit a tool once, and it keeps working offline. Useful on a train, in a basement office, or on a metered connection.
No account, no sign-up
Open a tool and use it. Recent tools and favourites are remembered on this device only, and you can export or delete them any time.
Honest about limits
Each tool says what it cannot do. If something genuinely needs a server, it is marked as such rather than faked.
Where to start
Type what you want to do on the home page, or browse every category. Read exactly how your data is handled on the privacy page.