Loading...
Loading...
We believe you shouldn't have to sacrifice your privacy to use simple online tools. That's why we built a platform where your files never leave your device.
Every day, millions of people upload sensitive files to online converters without realizing those files might be stored, analyzed, or even sold. We wanted to change that.
Privacy-First Toolbox was created to prove that powerful online tools don't need access to your data. Using modern browser technologies like Web Workers, Canvas API, and WebAssembly, we process everything locally on your device.
Every decision we make is guided by these principles.
Your files never leave your device. All processing happens in your browser.
Modern web technologies ensure quick processing without server delays.
No subscriptions, no hidden fees. Our tools are completely free to use.
Transparency through open-source code. Audit, contribute, and improve.
A technical look at how we keep your files 100% private.
When you choose a file, it's loaded directly into your browser's memory. No upload to any server occurs.
Our tools use Web Workers to process your files in a separate thread, keeping the UI responsive while conversion happens locally.
The processed file is generated in your browser and downloaded directly. Close the tab and all data is gone.
Don't just trust us — verify it yourself. Our entire codebase is open source, allowing security researchers, developers, and curious users to audit exactly how our tools work.
Convert images, manipulate PDFs, and more — all without sacrificing your privacy.