TTC は複数のフォントをひとつのファイルにまとめた形式です。同じ書体の太さ違いなどをまとめて管理できます。
Typical use: まとめられたフォントを個別の TTF/OTF に分けて使います。
About the TTC format
TTC は複数のフォントを 1 ファイルにまとめた形式です。同じ書体の太さ違いなどをまとめて管理できます。
個別に使うには TTF/OTF への分割が必要です。配布をまとめたい場合に向きます。
Strengths
- ✓ 複数書体をまとめられる
- ✓ 容量を節約できる
- ✓ First member extracts to a clean TTF
Limitations
- ✗ 個別利用には分割が必要
- ✗ 対応ソフトが限られる
- ✗ Members share glyphs — editing one is tricky
- Structure
- ttcf header + member offset table + sfnt members
- Types / schema
- Binary container of sfnt fonts
- Compatibility
- Windows, macOS, fonttools
- Best for
- CJK system font distribution
Convert TTC to…
3 direct directions plus 3 workflows, sorted A–Z; 🔥 marks popular targets.
Cross-engine workflows
Frequently asked questions
What is a TTC file?
TTC packs several TrueType fonts into one file with shared glyph tables — how Microsoft and Apple ship CJK system fonts. The first member extracts as a normal TTF.
How do I convert TTC files online?
Pick a target format from the "Convert TTC to…" list below, drop your file and hit convert. Everything runs in your browser — no install, no upload, no watermark, no limits.
Is it safe to convert TTC files here?
Yes. Every conversion is performed by your own device inside the browser — files never leave for a server, and the page keeps working even offline.
Which formats can TTC convert to?
This page lists all 6 directions across documents, images, audio, video, spreadsheets and archives — each one is its own free converter page.