“Runs in your browser” is easy to say. Here’s how to check.
We know a privacy claim is worthless unless you can verify it. So verifying it is built into every page — and takes about ten seconds.
Every tool here is a static page plus JavaScript that runs on your device. When you drop in a file or paste text, the work happens in your browser’s memory. Nothing is sent anywhere because there is nowhere for it to be sent — we don’t run a backend that could receive it.
The 0 uploads badge in the nav isn’t decoration. We wrapped this page’s own fetch and XMLHttpRequest so any request that would send your data off-device gets counted, live. Click it to see the readout. It says zero because it is zero.
Open your browser’s developer tools (F12 or right-click → Inspect), go to the Network tab, clear it, then use the tool. You’ll see the page load its fonts and scripts once — and then nothing more when you process your file. No POST, no upload, no beacon.
We set no cookies at all, and run no third-party ad networks, no session recording, and no fingerprinting. Preferences you re-enter often — your name, your team, your currency — are saved in localStorage, on your device only. That’s why a tool can “remember you” with no account: the memory never leaves your machine.
The one thing we do measure: an anonymous pageview count, so we know which tools people find useful. We use Cloudflare Web Analytics — cookieless, no personal data, no cross-site profile, and nothing about what you type or the files you open. It cannot see your inputs, and your files still never leave your device.