WOFF2
WOFF2 font files for web testing
Test WOFF2 uploads, webfont loading, Brotli decompression, and MIME detection with signature checks and local binary workflows.
Verified . The local inspector checks the wOF2 signature; header fields and table directory entries are compared against real WOFF2 inputs.
Identify WOFF2 files
- Magic signature
77 4F 46 32 (wOF2)- Registered MIME
font/woff2
WOFF2 wraps font tables in a Brotli-compressed stream with its own header and table directory. Browsers decompress before parsing tables, so a valid wOF2 signature does not prove the decompressed tables are intact.
Choosing WOFF2
WOFF2 is the compressed webfont format with broad browser support for fast text rendering, using Brotli-compressed font tables. The local generator does not produce WOFF2 files, so validate WOFF2 uploads with the file inspector and use TTF workflows for glyph-level checks.
Confirm the wOF2 signature instead of trusting the extension.
Test @font-face loading and fallback behavior in real browsers.
Enforce decompression limits on the Brotli stream.
Common test cases
- Webfont loading tests
- Compression and MIME validation
- Font upload checks
Invalid and boundary cases
- Valid header with corrupt Brotli stream
- Truncated table data after decompression
- Collection fonts packed as single WOFF2
WOFF2 fixture matrix
This format is generated locally in the browser and does not receive a permanent SEO URL.
Open the local generator