Check that nothing is uploaded
Lots of sites say your files never leave your device. You should not have to take our word for it, so here is how to check.
Watch the network
- Open your browser's developer tools (F12, or Cmd + Option + I on a Mac) and go to Network.
- Use any tool that says “Runs on this device” with a real file.
- You will see the page load its own code and, the first time, engines such as the text reader. All of it comes from this site. No request carries your file.
Pull the plug
Once a tool has loaded, turn off Wi-Fi and use it again. Tools that run on your device keep working, because they never needed the internet.
The rule the browser enforces
Every page is sent with a content security policy that only lets the page talk to this site. Even a bug, or a script someone slipped in, could not send your file anywhere else: the browser would block it. You can see the policy in the response headers of any page.
The site is free because it shows ads. Each ad runs in its own sealed frame, loaded from a separate address. The browser keeps it apart from this page, so ad code cannot see the page, your files or what you type. There are no analytics and no other third-party scripts.
The one exception: Office files
Browsers cannot convert Word, Excel or PowerPoint files well on their own, so those go to our conversion server, and only after you say yes. Before anything is sent you see the server, the size limit and that the file is deleted as soon as it is converted. The counter above shows exactly how much was sent.
Where your files go afterwards
Nowhere. Files you add live only in this browser tab while you work. Closing the tab clears them, so download the result you want to keep. There is no account and no copy on our side.