WOFF2 Converter
FileFlip converts WOFF2 files into 4 other formats entirely inside your browser, using the font engine compiled to WebAssembly. The WOFF2 file is never uploaded to a server: it is read off your disk, converted on your own machine, and saved back by the browser. There is no file-size limit and no account to create.
How do I convert a WOFF2 file?#
- Drop your WOFF2 file onto the converter at the top of this page, or click it to pick one from your computer.
- Choose the format you want out of it. FileFlip downloads the engine that conversion needs, once, and your browser caches it.
- Conversion starts the moment you pick the format, and the result is yours to download. The work happens in this tab, so nothing is uploaded and nothing is queued.
Is it safe to convert WOFF2 files online?#
Yes, because nothing is uploaded. FileFlip converts WOFF2 files inside the browser tab you already have open, using WebAssembly builds of the same engines a desktop converter would install. Your file is read from your own disk into the page's memory, and no request carrying it is ever made.
You do not have to take that on trust. Open your browser's network panel, run a conversion, and you will see the engine come down and your file go nowhere. There is no upload, no server-side copy, no retention window, and no account tied to what you converted.
How FileFlip works lists every engine, its version and its download size, and shows how to check for yourself that nothing leaves your machine.
What happens to a WOFF2 file#
FileFlip converts WOFF2 into 4 formats with the font engine, all of it inside the browser tab. Each conversion below names the engine it uses, what it downloads, and exactly what that conversion keeps or drops.
| Category | Fonts |
|---|---|
| File extension | .woff2 |
| FileFlip support | Read and written |
| Conversions available | 4 |
| Engines | the font engine |
| Downloaded to your browser | 0.7 MB on the first conversion, then cached |
What is a WOFF2 file?#
A WOFF2 file wraps a TrueType or OpenType font in a Brotli-compressed container built for @font-face delivery on the web, replacing WOFF's older zlib compression.
Serve WOFF2 as the primary font format for any website, since it's the smallest option every current browser supports.
Convert away from WOFF2 only when a font needs to be installed on a desktop or opened by a font editor, since WOFF2 exists purely for web delivery.
The WOFF2 file format reference covers the specification, the programs that open one, and what each conversion keeps or drops.
WOFF2 questions people ask#
How much smaller is WOFF2 than WOFF?
WOFF2 typically comes in around 30 percent smaller than the same font packaged as WOFF, because it replaces WOFF's zlib compression with Brotli and adds a font-specific preprocessing step before compressing. The exact saving varies by font, but it's consistent enough that WOFF2 is the default choice for new @font-face declarations.
Do I still need WOFF if I'm using WOFF2?
Only for older browsers. Every browser still receiving security updates supports WOFF2, so a WOFF fallback in the @font-face src list mainly protects against very old or niche browsers that never added WOFF2 support, most notably Internet Explorer.
Can I install a WOFF2 file as a system font?
Not directly. WOFF2 is a web delivery format, so Windows, macOS and Linux font installers don't recognize it, and it needs converting to TTF or OTF before an operating system will install it as a usable font.