Subset Font
Strip a font down to only the characters you use.
Drop your files here
or browse your device · paste with Ctrl+V
Nothing is uploaded. Your files are decoded, converted and re-encoded by WebAssembly running inside this tab, then handed straight back to you. The first conversion of a kind downloads that engine (a few MB for images, ~12–30 MB for video/audio) — later ones are instant.
Your files never leave this device — there is no upload and no server to delete them from.
About this tool
A full font carries thousands of glyphs. If your site only needs basic Latin, subsetting typically removes 80–95% of the file — the single biggest win available on web-font performance.