About NoUpload

NoUpload is a collection of file and developer tools that run entirely inside your web browser. There is no upload step, because there is no server doing the work. The processing happens on your own device, using WebAssembly and modern browser APIs.

Most online converters work by uploading your file to someone else's computer, processing it there, and sending the result back. That means handing your documents, photos and videos to a third party you have no reason to trust. In March 2025 the FBI's Denver office warned that it was increasingly seeing criminals use free online file converters to spread malware, including ransomware.

We built the alternative. Your files are never transmitted anywhere, so there is nothing to leak, nothing to retain, and nothing to subpoena.

Don't take our word for it. Verify it yourself: load a tool and convert something, then turn off your Wi-Fi or switch to airplane mode and convert again. It still works, because everything it needs is already on your machine.