What is EOT?

Embedded OpenType (EOT) is a compact font format developed by Microsoft for embedding fonts in web pages using IE.

What is UFO?

UFO (Unified Font Object) is an open, XML-based font source format used by professional font editors for collaborative font development.

When Should You Use EOT vs UFO?

Use EOT When...

Reach for EOT when your priority is legacy ie web fonts, older browser support — its efficient compression makes sharing fast and storage minimal.

Use UFO When...

Reach for UFO when your priority is font design and editing, collaborative font development, glyphs/robofont — its uncompromising quality ensures every detail is preserved.

EOT vs UFO: Key Differences

•EOT uses lossy compression while UFO uses lossless compression — this is the fundamental technical difference between the two formats.
•Moving from EOT (lossless) to UFO (lossless) means the output file will be larger — but every bit of the original is preserved.
•How transparency is handled: UFO supports transparency, so alpha information is preserved during conversion.
•Storage footprint: Similar to WOFF, 30-50% smaller than TTF for EOT vs 100KB to 10MB+ depending on glyph count for UFO.
•Use case fit: EOT targets legacy ie web fonts, older browser support and UFO targets font design and editing, collaborative font development, glyphs/robofont — your choice depends on which workflow stage you are serving.

Advantages of EOT

✓EOT applies lossy compression specifically calibrated for Legacy IE web fonts, older browser support.
✓EOT enjoys broad native support across operating systems, browsers, and creative tools alike.
✓EOT delivers impressive compression ratios, shrinking files dramatically while keeping visual quality high.
✓You will find EOT support built into virtually every tool that handles Legacy IE web fonts, older browser support — no plugins or converters needed.

Advantages of UFO

✓UFO uses lossless compression tailored for Font design and editing, collaborative font development, Glyphs/RoboFont.
✓UFO is supported natively on virtually every device, browser, and operating system.
✓UFO files are bit-for-bit perfect, preserving every pixel and sample for professional work.
✓UFO integrates seamlessly with all major creative tools and workflows.

Common Use Cases for EOT to UFO Conversion

E-book formatting
User interfaces
Marketing materials
Packaging design
Signage systems
Icon sets

Industry Applications

Brand DesignPrint ProductionUser Interface DesignDigital MarketingPackaging DesignAdvertising

Best Practices for EOT to UFO Conversion

→Converting EOT to UFO: check that glyph coverage is preserved — some formats have character limitations
→Use UFO for cross-platform compatibility
→Test fonts across different browsers and operating systems after conversion
→Always keep a backup of your original files before converting
→Choose the appropriate quality settings for your specific use case

Troubleshooting EOT to UFO Conversion

!The converted UFO font has incorrect metrics → advance width and kerning values may differ between formats despite identical glyphs
!UFO file looks heavier or lighter than EOT → font rendering engines handle weight and anti-aliasing differently per format
!OpenType features (ligatures, swashes) lost after conversion to UFO → verify the target format supports advanced typographic features
!Variable font axes missing from the converted UFO → variable font support varies significantly between formats

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Convert EOT to UFO Online - Free & Fast

Convert EOT files to UFO online for free. High-quality conversion with no registration required.

Font Converter

Upload or enter a URL to convert EOT to UFO instantly

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.eot,.EOT (max 100MB)

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About EOT and UFO

EOT

EOT (EOT fonts) - Embedded OpenType, Microsoft IE webfont format. Best for legacy ie web fonts, older browser support.

UFO

UFO (UFO) - Unified Font Object, XML-based source format for font design and editing. Ideal for font design and editing, collaborative font development, glyphs/robofont.

Format Comparison

CompressionLossy → Lossless

TransparencySupported

Use CaseConvert from legacy ie web fonts, older browser support to font design and editing, collaborative font development, glyphs/robofont

File Size~100KB to 10MB+ depending on glyph count after conversion

FAQs

Is converting EOT to UFO free?

Yes, GoConvertFile offers free conversion of EOT to UFO for files up to 100MB. No registration required.

How long does it take to convert EOT to UFO?

Most EOT to UFO conversions complete within seconds for standard-sized files. Larger files may take longer depending on the conversion complexity.

What is UFO best used for?

UFO is ideal for font design and editing, collaborative font development, glyphs/robofont. Unified Font Object, XML-based source format for font design and editing

Does converting EOT to UFO lose quality?

No, converting EOT to UFO does not cause additional quality loss â€” UFO uses lossless compression. However, any artifacts already present in the original EOT file will persist in the UFO output.

What file size should I expect after converting EOT to UFO?

UFO files are typically 2-5x larger than equivalent EOT files because UFO preserves all pixel data. This is expected and necessary for lossless quality.

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