Does converting WOFF to WOFF2 reduce quality?

No, converting WOFF to WOFF2 does not reduce quality. WOFF2 uses lossless compression, meaning the font outlines, glyphs, and visual appearance remain identical to the original. Only the file size changes.

What file size reduction should I expect?

You can expect a file size reduction of 50-70% when converting WOFF to WOFF2. For example, a 150KB WEB OPEN FONT FORMAT file typically compresses to around 45-75KB as WOFF2 due to Brotli compression.

Do WOFF2 fonts work in all browsers?

WOFF2 works in all modern browsers: Chrome 36+, Firefox 62+, Safari 11.1+, and Edge (all versions). It's not supported in IE11 or older browsers.

Will my font's OpenType features work after conversion?

Yes, all OpenType features are preserved during conversion. This includes ligatures, kerning pairs, alternate glyphs, small caps, and other advanced typography features. The conversion process adapts the container format while preserving all font data.

Can I convert commercial/licensed fonts?

You can convert commercial fonts for testing purposes, but you must purchase the appropriate web font license before using them on a live website. Font licenses are format-specific – a desktop license for one format doesn't automatically grant web usage rights. Always check your license agreement or contact the foundry.

How is WOFF different from WOFF2?

Web Open Font Format (WOFF) is a web-optimized format with gzip compression. Web Open Font Format 2 (WOFF2) is the most efficient web format with Brotli compression. Choose based on your target platform and requirements.

What's the best format for my use case?

For modern websites, use WOFF2 as your primary format. Provide WOFF as a fallback for older browsers. For desktop applications, consider TTF or OTF.

Can I convert variable fonts?

Yes, variable fonts can be converted between formats while preserving all variation axes and design space. The conversion maintains the font's interpolation capabilities. Ensure your target browsers support variable fonts (Chrome 62+, Firefox 62+, Safari 11+).

WOFF

WOFF2

WOFF to WOFF2 Converter

Convert Web Open Font Format to Web Open Font Format 2. 50 MB file size, unlimited uploads. Fast, secure, and completely private conversion.

WOFF to WOFF250 MB File Size100% Free ForeverFastPrivateInstant Processing

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Only WOFF files are accepted

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Max file size 50 MB.

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Disclaimer: This tool is provided as-is for convenience and does not constitute legal advice. Font licenses vary; you are responsible for ensuring you have the rights to upload and convert files and that your intended use is permitted. Converting a font does not grant new rights. Results may be imperfect, and use is at your own risk.

Developer & Verifier

Developed by

Marcus Rodriguez

Lead Developer

Verified by

Sarah Mitchell

Product Designer, Font Specialist

Convert Any Font Format

Universal Font Converter

Convert to WOFF2 Format

Any Font to WOFF2

About This Conversion

Everything you need to know about converting between these formats

Source Format

Web Open Font Format

Web Open Font Format (WOFF) is specifically optimized for web use with built-in compression. It's supported by all modern browsers and is ideal for websites. WOFF files are typically 40% smaller than their TTF/OTF equivalents.

Target Format

Web Open Font Format 2

WOFF2 is an improved version of WOFF with better Brotli compression, resulting in 30% smaller file sizes than WOFF. It's the preferred format for modern web applications and provides faster page load times.

Why Convert WOFF to WOFF2?

Maximizing performance for modern web applications

Achieving the smallest possible font file size

Supporting latest Chrome, Firefox, Safari, and Edge browsers

Building progressive web apps with optimized assets

How to Convert WOFF to WOFF2

Simple 3-step process that takes less than a minute

Upload Your Font

Select your WOFF font file from your computer or drag and drop it into the converter above.

Convert Instantly

Click the convert button and our tool will process your font file in server RAM only. Files are processed and immediately deleted - never written to disk.

Download Result

Your converted WOFF2 file will be ready immediately. Download it and use it in your project.

WOFF vs WOFF2: Feature Comparison

Technical comparison between source and target formats

Feature	WOFF	WOFF2	Winner
File Size	75 KB	55 KB (-27%)	WOFF2
Browser Support	99%+ (IE9+)	95%+ (no IE)	WOFF
Compression	Gzip	Brotli (better)	WOFF2
IE11 Support	Yes	No	WOFF
Page Load Speed	Fast	Faster (27% smaller)	WOFF2
Core Web Vitals	Good	Better	WOFF2
Fallback Strategy	Use as fallback	Use as primary	Use both
Best For	IE9-11 fallback	Modern browsers	Use both

Frequently Asked Questions

Common questions about converting WOFF to WOFF2

1How much smaller is WOFF2 than WOFF?

WOFF2 is typically 25-30% smaller than WOFF due to Brotli compression versus gzip. A 100KB WOFF file becomes approximately 70-75KB as WOFF2. For large font families, this can save hundreds of kilobytes in total page weight.

2Should I delete my WOFF files after converting to WOFF2?

Keep both formats for best results. Use WOFF2 as your primary format for modern browsers, and provide WOFF as a fallback for IE11 and older browsers. This gives you the best performance while maintaining compatibility.

3Does WOFF to WOFF2 conversion affect quality?

No, both use lossless compression. The font data (glyphs, kerning, features) remains completely identical. Only the compression algorithm changes from gzip (WOFF) to Brotli (WOFF2).

4Can I serve only WOFF2 without WOFF fallback?

Yes, if you're comfortable dropping IE11 support. WOFF2 works in all modern browsers. Check your analytics – if IE11 traffic is under 0.5-1%, WOFF2-only is probably safe for your audience.

5Which browsers don't support WOFF2?

Only Internet Explorer (all versions) lacks WOFF2 support. All other browsers from 2016+ support it: Chrome 36+, Firefox 39+, Safari 10+, Edge 14+. Mobile browsers have excellent WOFF2 support since iOS 10 and Android 5+.

6Does WOFF2 improve Core Web Vitals scores?

Yes, smaller font files mean faster LCP (Largest Contentful Paint) for text-heavy pages. The 25-30% size reduction from WOFF2 directly improves page load speed, which positively impacts Core Web Vitals and SEO rankings.

7Should I convert my entire WOFF library to WOFF2?

Yes, absolutely. Converting existing WOFF fonts to WOFF2 gives you immediate performance benefits with zero quality loss. Keep the original WOFF files as IE11 fallbacks, but make WOFF2 your primary delivery format.

8Can I use WOFF2 for email templates?

No. Email clients have extremely limited font support and don't support @font-face at all. Neither WOFF nor WOFF2 work in emails. Use web-safe fonts (Arial, Georgia) or embed fonts as images instead.

File Size Comparison

See how file sizes change after conversion

Original (WOFF)	Converted (WOFF2)	Change	Notes
75 KB (WOFF)	55 KB (WOFF2)	-27% smaller	Brotli better than gzip
140 KB (WOFF)	95 KB (WOFF2)	-32% smaller	Larger files compress better with Brotli
45 KB (WOFF)	35 KB (WOFF2)	-22% smaller	Smaller files see less improvement
260 KB (WOFF)	180 KB (WOFF2)	-31% smaller	Consistent 25-30% reduction

Performance Metrics

Technical performance indicators for this conversion

File Size Reduction:25-30%
Brotli compression 25-30% better than gzip
Page Load Improvement:80-150ms faster
Noticeable improvement on slower connections
Browser Support:95% (WOFF2)
WOFF2 for modern; keep WOFF for IE9-11 fallback
Dual Format Strategy:Recommended
Serve WOFF2 primary, WOFF fallback for 99.9% coverage
Core Web Vitals:+3-8 points
Improved LCP from smaller file sizes
Conversion Speed:<1 second
Fast re-compression from gzip to Brotli
Cache Hit Rate:+5-10%
Smaller files improve CDN cache efficiency

Implementation Examples

Production-ready code for your converted fonts

WOFF2 with WOFF Fallback

Upgrade existing WOFF fonts to WOFF2

@font-face {
    font-family: 'Existing Font';
    src: url('fonts/ExistingFont.woff2') format('woff2'),
         url('fonts/ExistingFont.woff') format('woff');
    font-weight: 400;
    font-display: swap;
  }

Modernized Font Stack

Complete family with WOFF2 priority

@font-face {
    font-family: 'Legacy Font';
    src: url('fonts/LegacyFont-Regular.woff2') format('woff2'),
         url('fonts/LegacyFont-Regular.woff') format('woff');
    font-weight: 400;
    font-display: swap;
  }
  
  @font-face {
    font-family: 'Legacy Font';
    src: url('fonts/LegacyFont-Bold.woff2') format('woff2'),
         url('fonts/LegacyFont-Bold.woff') format('woff');
    font-weight: 700;
    font-display: swap;
  }
  
  body {
    font-family: 'Legacy Font', Arial, sans-serif;
  }

Icon Font Upgrade

Convert icon WOFF to WOFF2

@font-face {
    font-family: 'Icons';
    src: url('fonts/icons.woff2') format('woff2'),
         url('fonts/icons.woff') format('woff');
    font-weight: normal;
    font-style: normal;
    font-display: block;
  }
  
  .icon::before {
    font-family: 'Icons';
    content: '\e001';
  }

Browser Compatibility

Which browsers support WOFF2 fonts

Browser	Support	Notes
Chrome	36+	Supported since 2014
Firefox	39+	Supported since 2015
Safari	10+	Supported since 2016 (macOS Sierra)
Edge	14+	Supported since 2016 (Anniversary Update)
IE	No support	Keep WOFF for IE9-11 fallback
Opera	23+	Supported since 2014
iOS Safari	10+	iPhone 5 and newer with iOS 10+
Android Browser	5+	Android Lollipop and newer
Chrome Mobile	36+	Full support on modern Android
Samsung Internet	4+	Supported since 2016

Troubleshooting Common Issues

Solutions to problems you might encounter

WOFF2 not much smaller than WOFF

Typical reduction is 25-30%. Some fonts compress better than others. Simple fonts with few glyphs see less benefit. For additional savings, subset both WOFF and WOFF2 to include only needed characters (can save another 30-70%).

Conversion fails or produces corrupt file

The WOFF file might be malformed or use features not compatible with WOFF2 compression. Try a different conversion tool. Verify the original WOFF works in browsers. Test with a known-good WOFF file to isolate the issue.

Variable font lost variation axes

Ensure your converter supports variable fonts. Not all tools preserve variable font data during WOFF to WOFF2 conversion. Check if the original WOFF is truly a variable font. Variable fonts require special handling.

Should I delete my WOFF files?

No! Keep both. Use WOFF2 for modern browsers (95%+ of traffic), WOFF for IE9-11 fallback (~1%). List both in @font-face: WOFF2 first, then WOFF. This covers 99.9% of users with optimal compression.

WOFF2 doesn't work in some browsers

WOFF2 doesn't work in IE11 or older browsers (Safari 9-, Android 4.4-). This is expected. Provide WOFF as fallback for these browsers. In @font-face, list WOFF2 first for modern browsers, WOFF second for legacy.

When NOT to Use WOFF2

Scenarios where you should keep WOFF or choose a different format

Must support IE11
Why not: WOFF2 doesn't work in IE11; you need WOFF fallback
Use instead: Keep both: WOFF2 (modern) + WOFF (IE11); don't replace WOFF
Legacy browser support
Why not: Safari 9-, Android 4.4- don't support WOFF2
Use instead: Provide WOFF2 for modern + WOFF for legacy browsers
Email templates
Why not: Email clients that support fonts only support WOFF, not WOFF2
Use instead: Keep WOFF for email compatibility (though support is limited)
You only want one format
Why not: Best practice is to provide both formats for full coverage
Use instead: Keep WOFF + create WOFF2; serve both for 99.9% coverage

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