EOT is Microsoft's web font format for IE4-IE8 — a TTF wrapped in a header with embedding permissions. The raw TTF rides at the tail of the file.
Typical use: Extract the TTF from EOT web fonts for modern @font-face usage.
About the EOT format
EOT (Embedded OpenType) is Microsoft's answer to web fonts from 1997: a TTF wrapped in a header carrying embedding permissions, root-string domain locks and a URI table — designed so foundries could license fonts for the web without giving away the raw file. IE4 through IE8 required it.
The actual sfnt rides unchanged at the tail of the file, so extraction is a pure slice: read FontDataSize from the header, take that many bytes from the end, and you have a TTF every modern browser accepts.
Strengths
- ✓ Carries embedding-permission metadata
- ✓ Lossless TTF recovery from the tail
- ✓ Required reading for legacy IE archives
Limitations
- ✗ Dead format — no modern browser loads it
- ✗ Header variants (compression flags) exist
- ✗ Root-string locks are trivially stripped
- Structure
- EOT header + raw sfnt tail
- Types / schema
- Binary wrapper
- Compatibility
- IE4-8 only; extract for everything else
- Best for
- Rescuing fonts from legacy web archives
Convert EOT to…
3 direct directions, sorted A–Z; 🔥 marks popular targets.
Frequently asked questions
What is a EOT file?
EOT is Microsoft's web font format for IE4-IE8 — a TTF wrapped in a header with embedding permissions. The raw TTF rides at the tail of the file.
How do I convert EOT files online?
Pick a target format from the "Convert EOT to…" list below, drop your file and hit convert. Everything runs in your browser — no install, no upload, no watermark, no limits.
Is it safe to convert EOT files here?
Yes. Every conversion is performed by your own device inside the browser — files never leave for a server, and the page keeps working even offline.
Which formats can EOT convert to?
This page lists all 3 directions across documents, images, audio, video, spreadsheets and archives — each one is its own free converter page.