About

About FileAnvil

FileAnvil is built by Thomas van der Bruggen, an independent developer — not a startup, not a data company.

Why this exists

Most online file tools work the same way: you upload your file to their server, they process it, you download the result — and you're left trusting a privacy policy about what happens to the copy they now have. For a holiday photo that may be fine. For a contract, a medical record, or a client document, it's a real problem.

Modern browsers can do the processing themselves. WebAssembly runs the same codecs and PDF libraries that servers use, right on your device. So FileAnvil simply has no upload endpoint: every conversion happens in your browser tab, which is why the tools are instant, work offline, and are free — there are no servers doing heavy lifting that anyone has to pay for.

Don't take my word for it

The whole point is that you don't have to trust this page. Turn on airplane mode and watch the tools keep working, or open your browser's network tab while you convert a file. The privacy policy spells out the little that is collected — anonymous usage counts — and everything that never is.

The tools

Twelve tools for images and PDFs, each free, with no sign-up, no watermarks and no file caps beyond your device's own memory. Browse all tools — or start with the most used one, HEIC to JPG.