TTC Font — A .ttc file is a TTC Font. It is a font format that defines the glyph outlines and metrics used for rendering text.
Quick facts
What is .ttc
A .ttc file is a TTC Font. It is a font format that defines the glyph outlines and metrics used for rendering text.
In the mime-db registry it maps to font/collection. When serving .ttc over HTTP, set the Content-Type header as shown in Developer info below.
Related entities: it maps to font/collection — and is delivered over HTTP via the Content-Type header.
How to open .ttc files
Developer info
When served over HTTP, responses should set the following header:
Content-Type: font/collection
Common software that reads/writes .ttc:
Relation chain
Related extensions
Related MIME types
Common uses
How to edit .ttc files
How to create .ttc files
Frequently asked questions
Common options include Font Book, FontForge, Windows Font Viewer. You can also open many of these files with built-in viewers or a browser.
Create a new file in any text editor or the app that owns the format and save it with the .ttc extension.
font/collection is the media type identifier used for .ttc files during network transfer (for example in the HTTP Content-Type header).
Sources & standards
Updated 2026-08-18
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