Free online WOFF to TTF converter

A desktop application, operating system, or font editor may accept a TrueType Font file but reject a web-font container. Converting the file creates a desktop-oriented font for installation, editing, archiving, or sharing, subject to the font license.

What the WOFF format is

WOFF (Web Open Font Format) packages an OpenType or TrueType font for website delivery. WOFF 1 uses compressed font data and can include metadata; WOFF2 is a separate, newer format that uses Brotli compression. Web developers, browsers, CSS tools, and website asset pipelines commonly use WOFF files referenced through CSS with @font-face.

WOFF is a web container, not necessarily a different glyph design. It can contain TrueType outlines or CFF outlines, so the source outlines determine what a conversion can produce. Do not rename .woff to .ttf; changing the extension does not change the font structure.

What the TTF format is

TTF usually identifies a font file containing TrueType outlines and the associated font tables. Operating systems and desktop applications widely support TTF for font installation, word processing, publishing, graphic design, and font editing.

TTF is useful when software expects a desktop font file rather than a WOFF container. It is often easier to install or transfer to applications that specifically look for the .ttf extension, but the extension alone does not make a font legally installable, editable, or redistributable.

Convert the file with 101convert

1. Open the WOFF converter on 101convert.com.
2. Upload the source file, select TTF as the output format, and start the conversion.
3. Download the generated .ttf file and open it in a font viewer or the target application.

This method requires no software installation and is suitable when the font may be processed by a third-party service. Do not upload a font if its license, client agreement, or project policy prohibits third-party processing.

Convert with FontTools

FontTools provides an offline command-line method for WOFF 1 files and preserves the tables supported by its parser. Install Python 3 and FontTools with:

python -m pip install fonttools

Place the source in a working folder, then run:

python -c "from fontTools.ttLib import TTFont; f=TTFont('MyFont.woff'); f.flavor=None; f.save('MyFont.ttf')"

Replace the filenames with the actual source and destination names. Setting flavor=None removes the WOFF wrapper when saving the font. Inspect the resulting file in a font viewer and test its family name, style, glyphs, accented characters, and layout features.

For a .woff2 source, use the WOFF2 decompression command instead; WOFF2 is not interchangeable with WOFF 1:

python -m pip install fonttools brotli

python -m fontTools.ttLib.woff2 decompress MyFont.woff2

The decompressed result may be a TrueType or OpenType font, depending on the embedded outlines and tables.

Convert with FontForge

1. Open the source with File → Open.
2. Check the family name, style, encoding, glyph set, metrics, and outline type.
3. Choose File → Generate Fonts.
4. Select TrueType or specify a filename ending in .ttf, then generate the file.

FontForge is preferable when the source has malformed tables or requires edits to outlines, names, metrics, hinting, or encoding. Review the generated font before installing it.

Quality and compatibility limits

A normal conversion removes the WOFF compression wrapper without changing the embedded glyph outlines, although checksums, metadata, table ordering, and supported tables can change. Applications may reject fonts with malformed source data, unusual naming tables, unsupported OpenType features, or invalid metrics.

A WOFF containing CFF outlines cannot become a genuine TrueType-outline font merely by removing its wrapper. FontTools may save such a font with a .ttf filename while retaining CFF outlines; if the target specifically requires TrueType outlines, use a font editor such as FontForge to convert the outlines and verify the result with a font-inspection tool.

Variable fonts need additional testing because applications differ in support for axes, instances, and variation tables. Conversion also does not remove embedding restrictions, copyright notices, or redistribution terms. Keep the original file and follow its license when installing, modifying, or sharing the generated font.