Font Formats Explained
Four formats, one job: storing the same glyph outlines for a different environment.
TTF
TrueType Font
The universal desktop format developed by Apple and later adopted by Microsoft.
OTFOpenType Font
Adobe and Microsoft's advanced typography format, usually carrying PostScript (CFF) outlines.
WOFFWeb Open Font Format
The original W3C web font format: a TTF or OTF wrapped in gzip compression.
WOFF2Web Open Font Format 2
The current web font standard, using Brotli compression for the smallest file sizes.