What is UFO?

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

What is TTC?

TrueType Collection (TTC) bundles multiple TrueType fonts into a single file, commonly used for CJK (Chinese, Japanese, Korean) font families.

When Should You Use UFO vs TTC?

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.

Use TTC When...

Reach for TTC when your priority is font distribution, cjk font collections — its uncompromising quality ensures every detail is preserved.

UFO vs TTC: Key Differences

•The core technical difference: UFO relies on lossless compression whereas TTC uses lossless compression.
•Neither format changes compression philosophy — both are lossless compression — so any size differences are due to encoding efficiency, not a shift in quality approach.
•How transparency is handled: TTC supports transparency, so alpha information is preserved during conversion.
•Storage footprint: 100KB to 10MB+ depending on glyph count for UFO vs 5-30MB for CJK font collections for TTC.
•Use case fit: UFO targets font design and editing, collaborative font development, glyphs/robofont and TTC targets font distribution, cjk font collections — your choice depends on which workflow stage you are serving.

Advantages of UFO

✓At its core, UFO relies on lossless encoding — a design choice that makes it perfect for Font design and editing, collaborative font development, Glyphs/RoboFont.
✓You won't run into compatibility issues with UFO — it's a universal standard across platforms.
✓File size management with UFO: larger files guaranteed to match the original exactly.
✓Every major application in the Font design and editing, collaborative font development, Glyphs/RoboFont space supports UFO natively.

Advantages of TTC

✓At its core, TTC relies on lossless encoding — a design choice that makes it perfect for Font distribution, CJK font collections.
✓You won't run into compatibility issues with TTC — it's a universal standard across platforms.
✓File size management with TTC: larger files guaranteed to match the original exactly.
✓Every major application in the Font distribution, CJK font collections space supports TTC natively.

Common Use Cases for UFO to TTC Conversion

Data visualization
Presentation design
Video subtitles
Game UI typography
Website typography
Brand identity

Industry Applications

SignageIcon DesignBook PublishingMobile App DevelopmentWeb DesignTypography

Best Practices for UFO to TTC Conversion

→Before converting UFO to TTC, review the font license — some licenses restrict format conversion
→Check hinting data after conversion: TTC may handle TrueType hinting differently than UFO
→Verify that all character sets (Latin, Cyrillic, CJK, etc.) survived the conversion intact
→Test the converted font in both a browser and a desktop application
→Keep the original font file in case the conversion alters spacing metrics

Troubleshooting UFO to TTC Conversion

!TTC font doesn't render correctly → check if TTC supports all glyphs present in UFO
!Licensing restrictions after UFO to TTC conversion → verify the font license allows format conversion
!Hinting data lost converting UFO to TTC → some font formats like TTC may not preserve TrueType hinting
!Special characters missing from converted TTC → font subsetting may have removed unused glyphs

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Convert to TTC →Convert from UFO →

Convert UFO to TTC Online - Free & Fast

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

Font Converter

Upload or enter a URL to convert UFO to TTC instantly

Click to upload or drag & drop UFO file

or paste from clipboard

.ufo,.UFO (max 100MB)

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About UFO and TTC

UFO

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

TTC

TTC (TTC collections) - TrueType Collection, multiple fonts in one file. Ideal for font distribution, cjk font collections.

Format Comparison

CompressionLossless → Lossless

TransparencySupported

Use CaseConvert from font design and editing, collaborative font development, glyphs/robofont to font distribution, cjk font collections

File Size~5-30MB for CJK font collections after conversion

FAQs

Is converting UFO to TTC free?

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

How long does it take to convert UFO to TTC?

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

What is TTC best used for?

TTC is ideal for font distribution, cjk font collections. TrueType Collection, multiple fonts in one file

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

File size after UFO to TTC conversion depends on the content complexity and quality settings. Both formats use similar compression approaches so sizes are comparable.

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