Format guide
OTF
OpenType Font
OTF is the modern font container format (Microsoft + Adobe, late 1990s) that supersedes TTF. Same SFNT wrapper but supports CFF (PostScript) glyph outlines in addition to TrueType outlines, plus advanced typographic features like ligatures, alternate glyphs, small caps, and contextual substitutions. Every modern OS reads OTF as natively as TTF; many designer fonts ship as OTF for the typographic features.
How to open a OTF file
Same as TTF: double-click to install on Windows, macOS, Linux. Use in CSS via `@font-face` (or convert to WOFF2 first for web delivery).
Primary use
Designer typography with advanced OpenType features.
Convert OTF to other formats
Looking for something else? Browse the full list of 192 converters.