About OnePCApp
OnePCApp is a growing collection of free, everyday tools for your files. They do the work right in your web browser, so your documents never have to leave your device.
Why it exists
Most online file tools ask you to upload your documents first: contracts, ID cards, bank statements, school and medical papers. After that, you have to trust a company you don’t know to keep them safe and delete them. We think simple jobs such as merging, signing or converting a file shouldn’t need that trust at all.
How your files stay private
- Your browser does the work. When you choose a file, your browser reads it from your device and processes it with code that came with the page.
- Nothing is uploaded or stored. Your file is never sent to us or to anyone else. There is no copy on a server, nothing to delete later, and no account to create.
- You stay in control. The result is saved to your device as a download, and your original file is never changed.
You can check this yourself: open your browser’s developer tools, choose the Network tab and use any tool. You will see the page and its code load, but no file being sent. The only other request is an anonymous visit count, explained on How we handle files.
What you can do today
14 free tools, with no signup and no watermark:
- PDF tools: Merge, split, sign, rotate, crop, watermark and convert PDFs. Free, no signup, and your files are never uploaded.
More tools will follow, built the same way: useful, simple and private.
Built with open source
OnePCApp relies on well-known open-source software for reading, writing and displaying files. Their licenses are listed on the open-source notices page.