OTF to WOFF2 Converter
Compress an OpenType font into WOFF2 for the best web performance and broad browser support.
Complete the security check to begin
About Converting OTF to WOFF2
OTF (OpenType Font) is a desktop font format that often carries advanced typographic features and PostScript (CFF) glyph outlines. Like TTF, OTF files are uncompressed and unsuitable for direct web use. Converting OTF to WOFF2 produces a Brotli-compressed web font that is dramatically smaller and supported by every modern browser, while keeping the OpenType features intact.
PrivConvert repackages the OpenType data into the WOFF2 container without touching the glyph outlines or OpenType feature tables, so ligatures, alternates and kerning are preserved. The process runs in memory and your file is deleted immediately afterwards.
Common use cases
- Self-hosting an OpenType display or text font on the web at minimal file size
- Preserving advanced OpenType features (ligatures, small caps, stylistic sets) in a web font
- Improving load performance by compressing a heavy OTF down to WOFF2
- Replacing third-party font CDNs with a self-hosted, privacy-friendly WOFF2
- Preparing a licensed OpenType font for @font-face embedding where the licence allows
Tips for best results
- OpenType features like ligatures need to be enabled in CSS with font-feature-settings or the font-variant properties — the data is preserved but off by default.
- WOFF2 keeps CFF/PostScript outlines intact, so display faces render exactly as designed.
- Subsetting before conversion trims unused glyphs and shrinks the file noticeably for large OpenType families.
- Use font-display: swap so your text remains visible while the WOFF2 downloads.
How to Convert OTF to WOFF2 Online
Here is how a OTF → WOFF2 conversion works on PrivConvert, from start to finish. What you gain with WOFF2: smallest web font files.
Drag and drop your file into the upload area, click to browse your device, or paste a URL to a file hosted online. You can upload files up to 250 MB and batch convert up to 20 files at once.
Once uploaded, the conversion from OTF to WOFF2 starts automatically. The process runs entirely in an isolated environment - your data never leaves the secure pipeline.
Your converted file is ready instantly. Click the download button to save it to your device. The file is deleted from memory immediately after download.
What makes this OTF-to-WOFF2 converter different
Privacy here is not a checkbox. Every OTF-to-WOFF2 conversion is engineered so your data never lingers, leaks or gets reused.
Runs in any modern browser on Windows, macOS, Linux, Android and iOS — no install, plugin or desktop software needed.
Each job runs in an isolated in-memory sandbox, so most conversions finish in seconds instead of waiting in a queue.
We never keep a copy. Once your WOFF2 is delivered, both the original and the result are gone — there is nothing left to leak or misuse.
Every conversion runs in its own locked-down process with no network access, so files can never leak or interfere with one another.
OTF vs WOFF2 - Format Comparison
| Feature | OTF | WOFF2 |
|---|---|---|
| File extension | .otf | .woff2 |
| Supported by PrivConvert | Yes (as input) | Yes (as output) |
| Privacy-safe conversion | In-memory, zero storage | |
| Max file size | 250 MB per file | |
| Batch support | Up to 20 files simultaneously | |
Why people pick PrivConvert for WOFF2
Thousands of people trust PrivConvert with their files because privacy here is structural — enforced by how the service runs, not just promised.