WOFF to UFO conversion is the process of transforming a web-optimized font file in the Web Open Font Format (WOFF or WOFF2) into a UFO (Unified Font Object) source folder or package used by font designers and editors. This conversion extracts glyph outlines, metrics, and font metadata from the compressed web font and reconstructs them into the editable, XML-based UFO structure for further editing or typeface development.
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Practical guides to help you choose formats, preserve quality, and avoid common conversion problems.
Drag your .WOFF file from your computer or use the browse function.
Confirm .ufo as the selected destination format.
Click "Convert" and download your converted .UFO file once ready.
WOFF files use the MIME type 'font/woff' and are commonly used for embedding fonts on websites to improve loading times. UFO files are typically plain XML-based packages used in font creation software and have no specific MIME type as they are source files, not for direct web use. Converting WOFF to UFO allows designers to work with uncompressed font data in widely supported editing environments.
The UFO (.UFO) format is commonly used for other. Understanding its characteristics can be helpful when converting to or from other formats like WOFF.
While specific technical details aren't available here, UFO files generally serve the purpose of storing other effectively within their domain.
Easily convert your WOFF font files to the UFO format with our efficient online WOFF to UFO converter. Whether you are a designer, developer, or font enthusiast, our tool simplifies the conversion process without the need for complex software installations.
WOFF is primarily a compressed web font format optimized for fast loading in browsers, while UFO is an editable font source format used by designers for detailed font development. WOFF files focus on efficient delivery, whereas UFO files are designed for comprehensive font editing and management.
Keep source WOFF files under 50–100 MB each for fastest, most reliable conversion; extremely large collections may need splitting.
To preserve design fidelity, choose an output option that retains outlines as cubic Béziers and preserves font metrics and kerning tables.
If you plan batch work, convert WOFF files as a ZIP of WOFFs to a ufoset ZIP to maintain folder structure and speed up processing.
Note that WOFF contains raster hinting and hinted TrueType instructions that may not map perfectly to UFO metadata; manual hinting review in a font editor is often required.
This converter saved me hours of work by quickly changing WOFF files to UFO.
John M.
Font Designer
Perfect tool to get editable UFO files from web fonts without hassle.
Lisa K.
Web Developer
Reliable and easy to use, highly recommend for font conversions.
Mark D.
Graphic Artist
Start your free WOFF to UFO conversion now.
Drag your file here to to upload.
Up to 250MB
UFO is a design-source format—post-conversion you should open the UFO in a font editor (RoboFont, Glyphs with UFO export/import, or FontForge with UFO support) to validate OpenType features and spacing.