About Font Tools

Font Tools is a free toolkit for converting font files between TTF, OTF, WOFF, and WOFF2 — directly in your web browser. There's no sign-up, no watermark, and no limit on how many fonts you convert.

Why is it free?

Every tool here runs using WebAssembly in your own browser, not a server we operate. Because we're not paying to process your fonts on our own infrastructure, there's no per-use cost to pass on — the site is instead supported by advertising.

Your font never leaves your device

Every conversion on this site happens locally, using the open-source fonteditor-core library compiled to WebAssembly. Your font file is read, converted, and downloaded entirely on your own computer or phone — at no point is it uploaded to any server. We can't see your fonts, because we never receive them. See How it works for the technical detail.

Who's behind this

Font Tools is part of the LoomFile family of free, private, in-browser file tools. If you have feedback or run into a bug, see our Contact page.