What is the MIME type of .ttf files?
The MIME type (media type) for TrueType font files with the .ttf extension is font/ttf. Desktop font format. Convert to WOFF2 for websites; TTF files compress reasonably with gzip if you must serve them.
Content-Type header
Content-Type: font/ttfServer configuration
| Server | Configuration |
|---|---|
Nginx (mime.types or types {}) | font/ttf ttf; |
Apache (.htaccess) | AddType font/ttf .ttf |
IIS (web.config) | <mimeMap fileExtension=".ttf" mimeType="font/ttf" /> |
| Node.js / Express | res.type('ttf') or res.setHeader('Content-Type', 'font/ttf') |
| Amazon S3 | Set Content-Type: font/ttf on the object (metadata), or pass --content-type font/ttf to aws s3 cp |
Should .ttf files be compressed?
Yes. TrueType font is uncompressed data, so enabling gzip or Brotli for font/ttf typically saves 50–80 % of the transfer size. Make sure your server’s compression list includes this type — check with the website compression test.
Why the MIME type matters
Browsers decide what to do with a response — render, run, play or download — from the Content-Type header, not the file extension. With X-Content-Type-Options: nosniff, a wrong type causes stylesheets and scripts to be blocked outright. For uploads, never trust the type sent by the client; check the file’s content (its magic bytes) on the server.
Frequently asked questions
What is the MIME type for .ttf?
font/ttf.How do I set the Content-Type for .ttf in Nginx?
font/ttf ttf; is listed in the types block (usually in /etc/nginx/mime.types) and reload Nginx.