Convert WOFF Online


WOFF - Web Open Font Format


Format introduction:

The Web Open Font Format (WOFF) is a font format for use in web pages. WOFF files are OpenType or TrueType fonts, with format-specific compression applied and additional XML metadata added. The two primary goals are to first distinguish font files intended for use as web fonts from fonts files intended for use in desktop applications via local installation, and second to reduce web font latency when fonts are transferred from a server to a client over a network connection.

Technical details:

WOFF is a wrapper containing SFNT-based fonts (TrueType or OpenType) that have been compressed using a WOFF-specific encoding tool so they can be embedded in a Web page. WOFF Version 1 uses the widely available zlib compression, typically resulting in a file size reduction for TrueType files of over 40%. Since OpenType CFF files are already compressed, their reduction is typically smaller.


File extension .woff
MIME font/woff
Developed by W3C
Type of format Font file
Associated programs Firefox, Google Chrome, Internet Explorer, Microsoft Edge, Opera, Safari
Sample file sample.woff
Wikipedia WOFF on Wikipedia


The list shows what formats can convert to WOFF and what formats can be converted from WOFF. Click on a link below to start a specific conversion.

# Conversion Type Position
1 SVG to WOFF image TO WOFF
2 TTF to WOFF image TO WOFF
3 WOFF2 to WOFF image TO WOFF
4 OTF to WOFF image TO WOFF