OTF（OpenType）は TrueType を拡張したフォント形式です。高度なタイポグラフィ機能と多言語対応を備えます。
Typical use: 印刷や高度な組版には OTF、Web 配信には WOFF2 に変換します。
About the OTF format
OTF（OpenType）は TrueType を拡張したフォント形式です。合字、スモールキャップス、多言語対応など高度な組版機能を備えます。
印刷やデザイン用途では OTF、Web 配信には WOFF2 へ変換という使い分けが基本です。
Strengths
- ✓ 高度なタイポグラフィ機能
- ✓ 多言語対応に強い
- ✓ 印刷品質が安定
Limitations
- ✗ Web には大きい
- ✗ 機能が多く設定が複雑
- Web readiness
- Convert to WOFF2 for @font-face
- Quality
- CFF cubic outlines
- Compatibility
- All operating systems
- Best for
- Professional typography
Convert OTF to…
2 direct directions plus 3 workflows, sorted A–Z; 🔥 marks popular targets.
Cross-engine workflows
Convert other files to OTF…
Frequently asked questions
What is a OTF file?
OTF (OpenType Font) is the successor to TrueType with PostScript outlines — the preferred format for professional typography with extensive glyph sets.
How do I convert OTF files online?
Pick a target format from the "Convert OTF 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 OTF 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 OTF convert to?
This page lists all 5 directions across documents, images, audio, video, spreadsheets and archives — each one is its own free converter page.