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OTF File Format

OpenType Font category

OTF (OpenType Font) is the successor to TrueType with PostScript outlines — the preferred format for professional typography with extensive glyph sets.

Typical use: OTF keeps designer-grade outlines and advanced glyph features, which makes it the standard deliverable from type foundries.

About the OTF format

OTF (OpenType with CFF outlines, Adobe & Microsoft, 1996) upgraded the font file: cubic Bézier curves (matching PostScript/Illustrator geometry), support for tens of thousands of glyphs, and OpenType features — ligatures, small caps, tabular figures, multi-script layout. Professional type foundries ship OTF for desktop use.

Like TTF, it is a desktop format: uncompressed and web-inefficient. The standard pipeline converts OTF to WOFF2 for the web; on the desktop itself, OTF is simply how pro typography is distributed.

Strengths

  • ✓ Advanced typography features (ligatures, styles)
  • ✓ Cubic curves match vector-design workflows
  • ✓ Huge glyph coverage, multi-script

Limitations

  • ✗ Uncompressed for web use
  • ✗ Hinting tradition weaker than TTF
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, sorted A–Z; 🔥 marks popular targets.

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 2 directions across documents, images, audio, video, spreadsheets and archives — each one is its own free converter page.