TTF to EOT Converter
FileFlip converts TTF to EOT 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 a TTF file to EOT?#
- Drop your TTF 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 EOT 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 EOT file. Your browser writes it straight to your downloads folder, because there was never a server holding it.
Does converting TTF to EOT lose quality?#
No. The TTF to EOT 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 TTF files online?#
Yes, because nothing is uploaded. FileFlip converts TTF 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 TTF to EOT actually does to the file#
Converting TTF to EOT 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: TTF → EOT |
| 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 a TTF file?#
A TTF file stores a font's glyph outlines as quadratic Bezier curves, along with the hinting instructions that adjust them for small on-screen sizes.
Use TTF for a font installed locally on a desktop, where every operating system already knows how to render it.
Convert TTF to WOFF2 before serving a font on a website, since browsers load a compressed web font format far faster than a raw TTF.
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.
TTF to EOT questions people ask#
Can I use a TTF font on a website?
A browser can load a TTF file with @font-face, but it downloads uncompressed, which makes the page slower to load than serving the same font as WOFF2. TTF on the web only really makes sense as a fallback for very old browsers that don't support WOFF.
Does converting a font change what its license allows?
No. Converting a TTF file to another format changes its container, not its license, and most commercial font licenses restrict web embedding or redistribution regardless of file format. Checking what the original license permits comes before converting a font, not after.
What's the difference between TTF and OTF?
TTF stores glyph outlines as quadratic Bezier curves, the format Apple designed in the early 1990s. OTF extends the same font structure with an option for PostScript-style cubic outlines and adds OpenType's advanced typographic features, like ligatures and language-specific substitutions, that plain TTF doesn't have.
Why does Windows preview my TTF font but some programs won't use it?
Windows Font Viewer previews any valid TTF file, but a program that reads fonts through a stricter API, or checks the embedding permission bits inside the font, can refuse to use it even though it displays fine. That embedding restriction is set by the font's creator and travels with the file regardless of what it's converted to.