Does converting WOFF to OTF reduce quality?

Converting Web Open Font Format to OpenType Font preserves all font data including outlines, glyphs, and metrics. The conversion maintains the integrity of your font while adapting it for the target format.

What file size reduction should I expect?

Converting from WOFF2/WOFF to OTF will result in a larger file size since OTF doesn't use compression. The file size will increase approximately 2-3x.

Do OTF fonts work in all browsers?

OTF fonts are supported by all modern operating systems and browsers for desktop use. For web use, consider converting to WOFF or WOFF2.

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 OTF?

Web Open Font Format (WOFF) is a web-optimized format with gzip compression. OpenType Font (OTF) is a professional format with advanced typography. Choose based on your target platform and requirements.

What's the best format for my use case?

For web use, convert to WOFF2 or WOFF instead. For desktop applications or print, OTF may be appropriate. Always check the requirements of your target platform.

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

OTF

WOFF to OTF Converter

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

WOFF to OTF50 MB File Size100% Free ForeverFastPrivateInstant Processing

Upload Fonts

Drag and drop your font files here or click to browse

Only WOFF files are accepted

Choose Files

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 OTF Format

Any Font to OTF

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

OpenType Font

OpenType Font (OTF) is an extension of TrueType, offering advanced typographic features like ligatures and alternate glyphs. It supports more characters and is preferred for professional design work due to its superior font rendering capabilities.

Why Convert WOFF to OTF?

Professional design work requiring advanced typography

Accessing extended character sets and ligatures

Desktop publishing with sophisticated font features

Creating high-quality print materials

How to Convert WOFF to OTF

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 OTF file will be ready immediately. Download it and use it in your project.

WOFF vs OTF: Feature Comparison

Technical comparison between source and target formats

Feature	WOFF	OTF	Winner
File Size	75 KB	180 KB (+140%)	WOFF
Web Performance	Optimized	Poor (very large)	WOFF
Desktop Support	None	Universal	OTF
Browser Support	99%+ (IE9+)	Limited	WOFF
File Efficiency	Highly compressed	Uncompressed + overhead	WOFF
Best For	Web deployment	Desktop applications	Depends

Frequently Asked Questions

Common questions about converting WOFF to OTF

1Why convert WOFF to OTF instead of TTF?

Usually you don't need to. WOFF typically contains TrueType outlines, so converting to TTF is more common. Convert to OTF only if: (1) Client specifically requires OTF format, (2) The original font was OTF-based, or (3) You need OTF for specific software compatibility.

2Will file size increase converting WOFF to OTF?

Yes, significantly. A 60KB WOFF becomes approximately 130-180KB as OTF (50-70% larger). OTF has more overhead than TTF. If you need desktop fonts, convert to TTF instead – it's 10-30% smaller than OTF with identical functionality.

3Does OTF preserve all font features from WOFF?

Yes, all OpenType features are preserved. However, converting WOFF to OTF doesn't add any features – it just changes the container. If you need desktop fonts, TTF is usually a better choice than OTF (smaller, broader compatibility).

4Should I use OTF or TTF when converting from WOFF?

Use TTF unless you have a specific reason to need OTF. TTF is 10-30% smaller, has broader compatibility with older software, and offers identical functionality. The "OTF is higher quality" myth is false for TrueType-based fonts.

5Can I use converted OTF on websites?

Don't use OTF directly on websites. Keep your original WOFF for web use (or better yet, convert WOFF to WOFF2). OTF is uncompressed and 50-70% larger, making pages slower. Use OTF only for desktop applications.

6Will the converted OTF work in Adobe apps?

Yes. Adobe applications handle both TTF and OTF identically. However, if converting from WOFF for Adobe use, TTF is actually preferable – smaller file size, same functionality. Adobe themselves distribute fonts in both formats.

7Does WOFF to OTF conversion create PostScript outlines?

No. If the WOFF contains TrueType outlines, they remain TrueType in the OTF. You're just changing the container format. OTF can use either TrueType or PostScript outlines; conversion doesn't change the outline type.

8Is there any advantage to OTF over TTF from WOFF?

No practical advantage. Both preserve all font features identically. TTF is smaller and more compatible. Only convert to OTF if specifically required by client deliverables or software that explicitly rejects TTF (rare).

File Size Comparison

See how file sizes change after conversion

Original (WOFF)	Converted (OTF)	Change	Notes
75 KB (WOFF)	180 KB (OTF)	+140% larger	Decompression + OTF overhead
140 KB (WOFF)	350 KB (OTF)	+150% larger	OTF 20% larger than TTF equivalent
45 KB (WOFF)	100 KB (OTF)	+122% larger	Combined expansion factors
260 KB (WOFF)	700 KB (OTF)	+169% larger	Maximum expansion for OTF

Performance Metrics

Technical performance indicators for this conversion

File Size Increase:+130-180% larger
Decompression + OTF overhead
Desktop Use Case:Applications only
OTF for desktop; keep WOFF for web
Conversion Purpose:Format change
Convert web fonts to desktop OTF
Performance:Desktop only
OTF works in desktop apps, not web
Storage Impact:Much larger
OTF 20-30% larger than TTF alternative
Recommendation:Use TTF instead
Convert WOFF to TTF, not OTF (smaller, more compatible)

Implementation Examples

Production-ready code for your converted fonts

Desktop Font Installation

Installing OTF fonts on your system

/* OTF Font Installation Instructions
   * 
   * Windows:
   * 1. Right-click the otf file
   * 2. Click "Install" or "Install for all users"
   * 3. Font available in all applications
   *
   * macOS:
   * 1. Double-click the otf file
   * 2. Click "Install Font" in Font Book
   * 3. Font available system-wide
   *
   * Linux:
   * 1. Copy otf file to ~/.fonts/ or /usr/share/fonts/
   * 2. Run: fc-cache -f -v
   * 3. Font available in all applications
   *
   * Use in applications:
   * Select font from dropdown in:
   * - Photoshop, Illustrator, InDesign
   * - Word, PowerPoint, Excel
   * - Any desktop application
   */

Browser Compatibility

Which browsers support OTF fonts

Browser	Support	Notes
Desktop Use	N/A	OTF is for desktop applications, not web browsers
Windows	All versions	Full OTF support after conversion from WOFF
macOS	All versions	Full OTF support after conversion from WOFF
Linux	All distros	Full OTF support in modern Linux
Applications	Universal	Use converted OTF in desktop apps, keep WOFF for web

Troubleshooting Common Issues

Solutions to problems you might encounter

File size increased dramatically

WOFF is compressed; OTF is not. Additionally, OTF has 10-30% more overhead than TTF. A 60KB WOFF becomes approximately 130-180KB as OTF (50-70% larger). This is expected. For desktop fonts, convert to TTF instead – it's smaller.

Conversion creates TrueType OTF, not PostScript

Most WOFF files contain TrueType outlines, so conversion produces TrueType-based OTF. This is correct. If you specifically need PostScript (CFF) outlines, you'd need a source font with PostScript data, which WOFF typically doesn't have.

Why would I want OTF instead of TTF?

Usually you don't. For desktop use from WOFF, TTF is preferable: 10-30% smaller, broader compatibility, identical functionality. Only convert to OTF if client specifically requires that format or you have a specific OTF-only software requirement (rare).

OTF doesn't work in some desktop software

Some older software has better TTF support than OTF. Try converting WOFF to TTF instead. TTF has broader compatibility, especially with older applications. For modern software, both work identically.

Should I use this OTF on my website?

Absolutely not. Keep your WOFF for web use. OTF is 50-70% larger than WOFF, making pages much slower. Convert WOFF to OTF only for desktop applications. For web, WOFF or WOFF2 are always superior.

When NOT to Use OTF

Scenarios where you should keep WOFF or choose a different format

Web deployment
Why not: OTF is 130-180% larger than WOFF; terrible for web
Use instead: Keep WOFF for web; convert to TTF (not OTF) for desktop if needed
File size matters
Why not: OTF is 20-30% larger than TTF with same functionality
Use instead: If converting for desktop, use TTF instead of OTF (smaller)
Maximum compatibility
Why not: TTF has broader compatibility than OTF in older software
Use instead: Convert to TTF instead of OTF for desktop use
You want smaller desktop fonts
Why not: OTF has unnecessary overhead vs TTF
Use instead: Convert WOFF to TTF, not OTF, for desktop applications

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