Private tools that run
in your browser.
No file uploads. No servers. Your files never leave your device.
Processing runs locally via WebAssembly · Free forever
All tools
8 live · 5 comingHow it actually works
Unlike most tools — your files never go anywhere
You pick a file
Your browser reads the file directly from disk. Nothing is uploaded. The file path never leaves your tab.
Browser processes it
We use Pyodide (Python as WebAssembly) and PDF.js to run real processing logic inside your browser tab. No network call is made.
You download the result
The output is generated in memory and handed directly to you as a download. We never see it, store it, or touch it.
Why NoServerTools is different
Most tools send your files to their servers. We built it so we physically cannot.
* After initial page load, engines are cached in the browser.
Our privacy promise
NoServerTools was built with one principle: we should never be able to see your files, even if we wanted to. So we built it that way. There are no servers that receive files. No database. No logs of what you process.
All tools use Pyodide or PDF.js — running entirely inside your browser tab. When you close the tab, everything is gone. We have nothing.