Look up the correct MIME (content) type for a file extension — the value servers send in the Content-Type header so browsers know how to handle a file.
How it works
- Enter a file extension (like .json) or a broader category (like image).
- The reference filters instantly to show matching MIME types.
- Copy the exact string to configure your backend Content-Type header.
Frequently asked questions
What exactly is a MIME type?
It is an official standardized string label (like application/json) that tells software exactly what kind of underlying data a file contains.
What happens if a server sends the wrong MIME type?
Browsers will often refuse to execute scripts or render files if they are served with incorrect types, which is a leading cause of broken web deployments.
What is the purpose of application/octet-stream?
It acts as the ultimate generic fallback for arbitrary binary data. Browsers usually react to it by forcing a file download.