WOFF is the older web font format (version 1) — larger than WOFF2 but still required by some legacy browser support matrices and old @font-face stacks.
Typical use: Converting WOFF back to TTF/OTF unlocks fonts trapped in old web projects for desktop install and editing.
About the WOFF format
WOFF (Web Open Font Format, 2010) wrapped TTF/OTF data in a web-first container: zlib compression (~40% smaller), strict table structure, and optional license metadata that foundries required before allowing web embedding. It powered the first generation of real web typography under @font-face.
Its successor WOFF2 compresses better with Brotli and has since become the only format modern sites ship. WOFF remains useful for one reason: legacy browsers (IE9–IE11 era) that never learned WOFF2.
Strengths
- ✓ Compressed and web-legal by design
- ✓ Works back to IE9-era browsers
Limitations
- ✗ Superseded by WOFF2 everywhere current
- ✗ Larger than WOFF2 for identical glyphs
- Web readiness
- Native @font-face
- Quality
- Same outlines as source
- Compatibility
- IE9+ and all modern browsers
- Best for
- Legacy-browser web fonts
Convert WOFF to…
3 direct directions, sorted A–Z; 🔥 marks popular targets.
Convert other files to WOFF…
Frequently asked questions
What is a WOFF file?
WOFF is the older web font format (version 1) — larger than WOFF2 but still required by some legacy browser support matrices and old @font-face stacks.
How do I convert WOFF files online?
Pick a target format from the "Convert WOFF 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 WOFF 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 WOFF convert to?
This page lists all 3 directions across documents, images, audio, video, spreadsheets and archives — each one is its own free converter page.