WOFF2 Converter
Convert TTF, OTF, and WOFF fonts to WOFF2 format instantly. 100% free, no upload to servers, with built-in subsetting.
Quick Answer: How to Convert TTF to WOFF2
The fastest way to convert TTF to WOFF2: Use Sift's browser-based converter. Upload your TTF file, optionally enable subsetting (reduces size by 70%+), and download your WOFF2 instantly. No software to install, no files uploaded to servers.
Convert Now - FreeHow to Convert TTF to WOFF2
Upload Your Font
Drag and drop or click to upload any TTF, OTF, or WOFF file.
Choose Options
Select subsetting preset (Latin, Latin Extended, etc.) or paste custom text.
Download WOFF2
Click download to get your optimized WOFF2 file instantly.
Why Use Sift's WOFF2 Converter?
100% Private
Your fonts never leave your browser. All conversion happens locally using WebAssembly.
Instant Conversion
Convert fonts in milliseconds. No waiting for server processing or uploads.
Built-in Subsetting
Remove unused characters to reduce file size by 70-95% while converting.
Variable Font Support
Full support for variable fonts. Convert or instance to specific weights.
Size Comparison
See exactly how much smaller your WOFF2 file is compared to the original.
CSS Code Generation
Get ready-to-use @font-face CSS with proper font-display settings.
WOFF2 vs Other Formats
Typical file sizes for a full-featured font (e.g., Inter Regular):
| Format | Size | Compression | Browser Support |
|---|---|---|---|
| TTF (Original) | 250 KB | None | 100% |
| OTF (Original) | 280 KB | None | 100% |
| WOFF | 175 KB | ~30% | 99% |
| WOFF2 | 125 KB | ~50% | 98% |
| WOFF2 + Subset | 18 KB | ~93% | 98% |
Technical Details
What is WOFF2?
WOFF2 (Web Open Font Format 2.0) uses Brotli compression to achieve 30-50% smaller files than WOFF/TTF. It's the recommended format for web fonts with 98%+ browser support including all modern browsers.
How does the conversion work?
Sift uses WebAssembly (Rust compiled to WASM) to run font processing directly in your browser. The conversion uses the same allsorts library and ttf2woff2 encoder used by professional font tools. Your files never leave your device.
Supported input formats
TTF (TrueType), OTF (OpenType), WOFF (Web Open Font Format 1.0), and variable fonts with any number of axes.
Frequently Asked Questions
How do I convert TTF to WOFF2?
Upload your TTF file to Sift's WOFF2 converter, optionally select subsetting options, and click download. The conversion happens instantly in your browser - no server upload required.
Is WOFF2 better than TTF for websites?
Yes, WOFF2 is 30-50% smaller than TTF due to Brotli compression. It has 98%+ browser support and is the recommended format for web fonts. Using WOFF2 improves page load times and Core Web Vitals scores.
Can I convert variable fonts to WOFF2?
Yes, Sift fully supports variable font conversion. You can convert variable TTF/OTF to WOFF2 while preserving all axes, or instance specific weights to reduce file size further.
Is the WOFF2 converter free?
Yes, Sift's WOFF2 converter is completely free with no limits. All processing happens in your browser, so your fonts never leave your computer. No account required.
What's the difference between WOFF and WOFF2?
WOFF uses zlib compression while WOFF2 uses Brotli compression. WOFF2 files are typically 30% smaller than WOFF files. Both have excellent browser support, but WOFF2 is preferred for modern sites.
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