EOT to WOFF Converter
FileFlip converts EOT to WOFF entirely inside your browser, using the font engine compiled to WebAssembly. The file is never uploaded to a server: it is read off your disk, converted on your own machine, and saved back by the browser. That means no file-size limit, no queue and no account.
How do I convert an EOT file to WOFF?#
- Drop your EOT file onto the converter at the top of this page, or click it to pick one from your computer. You can add as many as you like.
- Leave the target set to WOFF and the conversion starts on its own. FileFlip downloads nothing at all, because everything it needs is already built into your browser, then runs the font engine on your own machine.
- Save the WOFF file. Your browser writes it straight to your downloads folder, because there was never a server holding it.
Does converting EOT to WOFF lose quality?#
No. The EOT to WOFF conversion copies the already-encoded streams into the new container without decoding them, so what comes out is bit-for-bit what went in. Only the wrapper changes, which is why it is also fast.
Is it safe to convert EOT files online?#
Yes, because nothing is uploaded. FileFlip converts EOT files inside the browser tab you already have open, using WebAssembly builds of the same engines a desktop converter would install. Your file is read from your own disk into the page's memory, and no request carrying it is ever made.
You do not have to take that on trust. Open your browser's network panel, run a conversion, and you will see the engine come down and your file go nowhere. There is no upload, no server-side copy, no retention window, and no account tied to what you converted.
How FileFlip works lists every engine, its version and its download size, and shows how to check for yourself that nothing leaves your machine.
What EOT to WOFF actually does to the file#
Converting EOT to WOFF runs on the font engine, downloads nothing at all, because everything it needs is already built into your browser, copies the encoded streams into the new container without re-encoding them, keeps hinting and kerning, and drops OpenType features.
| Engine | the font engine |
|---|---|
| Conversion path | One step: EOT → WOFF |
| Downloaded to your browser | Nothing. Your browser already has everything this conversion needs |
| Quality | Lossless, repackaged rather than re-encoded |
| You get back | One file |
| Where it runs | On the page's own thread, so a very large file will make the tab wait |
What survives the conversion
| What is in the file | This conversion | Why |
|---|---|---|
| Hinting | Kept | Carried through into the converted file. |
| Kerning | Kept | Carried through into the converted file. |
| OpenType features | Dropped | The target format has nowhere to put it. |
Worth knowing before you start:
- this conversion runs on the page's own thread, so a large file will freeze the tab while it works
What is an EOT file?#
An EOT file wraps a subsetted, compressed OpenType or TrueType font in a proprietary container that only Internet Explorer's @font-face implementation ever read.
There's no current reason to choose EOT; it only ever mattered for Internet Explorer 6 through 8, both long unsupported.
Convert away from EOT to WOFF2 and TTF for any website still shipping it, since no browser in current use reads EOT at all.
What is a WOFF file?#
A WOFF file wraps a TrueType or OpenType font in a compressed container built specifically for loading with @font-face on the web.
Serve WOFF when a site's browser support has to reach back further than WOFF2 covers, or as the fallback source in a @font-face src list.
Convert WOFF to WOFF2 as the primary web font and keep WOFF only as a fallback, since WOFF2 is smaller for the same font on every modern browser.
EOT to WOFF questions people ask#
Do any current browsers support EOT fonts?
No. EOT only ever worked in Internet Explorer, and Microsoft Edge, IE's replacement, never implemented support for it. Every browser in current use needs WOFF, WOFF2, TTF or OTF instead.
Why would I still need to convert a file to EOT today?
Only if a website deliberately still supports Internet Explorer 6 through 8, which is rare given that Microsoft ended support for those browsers years ago. Any current @font-face declaration can drop the EOT source entirely and rely on WOFF2 with a WOFF fallback.
What was EOT's domain-locking feature for?
EOT could embed a root string listing the domains a font was licensed to appear on, and Internet Explorer would refuse to render the font on any other domain. Font foundries liked that it discouraged casual copying, but no other browser vendor implemented the check, which was part of why EOT never became a cross-browser standard.
Why is WOFF smaller than a plain TTF file?
WOFF wraps the same TrueType or OpenType glyph data inside a zlib-compressed container, which typically shrinks the file by more than 40 percent. Decompression happens once when the browser loads the font, so the smaller download comes at essentially no runtime cost.