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font Format

WOFF File Format

Web Open Font Format packages TTF or OTF fonts into a compressed zlib container designed specifically for web use, standardizing web typography.

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Technical Specifications

Extensions.woff
MIME Typesfont/woff
CategoryFont
Engine Tiertier1-small-js
Magic Bytes / Sniffing0x77 0x4F 0x46 0x46
Opens WithAll web browsers
Good ForCompatibility with older web browsers.
Not Recommended ForModern web performance where WOFF2 provides superior Brotli compression.

Convert from WOFF (3 targets)

WOFFWOFF2(exact)WOFFTTF(exact)WOFFOTF(exact)

Convert to WOFF (3 sources)

TTFWOFF(exact)OTFWOFF(exact)WOFF2WOFF(exact)