What does this tool do?
MIME Type Lookup lets you instantly find the correct MIME (content type) for a file extension. It is a fast reference for web developers, server administrators and anyone who needs to set the right Content-Type header.
How to use it
- Enter an address, domain or value.
- View the results instantly.
- Copy the details you need.
Search three ways
A single search box accepts an extension (png), a full MIME type (image/jpeg), or a category word (video, font, archive). The tool covers nearly fifty common file types and automatically strips a leading dot, so typing .png works too. Each row shows the extension, the official MIME type and a short description, and you can copy any type with a single tap.
Binary vs. text distinction
Every result carries a colored label showing whether the type is binary or text based. This distinction matters for server configuration, compression decisions, and whether you need to add a charset. Text types typically take a charset=utf-8 suffix, while binary types such as images, video and fonts do not, which affects how browsers and servers handle the bytes.
Frequently asked questions
Why does .js show application/javascript?
That is the current recommended MIME type for modern browsers and servers. The older text/javascript still works, but application/javascript is preferred today.
What happens if I search an extension that isn't listed?
The tool covers about fifty common types; if there's no match the result is empty. For unknown binary files the general fallback is application/octet-stream.
Can two extensions share the same MIME type?
Yes. For example jpg and jpeg both return image/jpeg, and htm and html both return text/html. This is completely normal.
Is MIME Type Lookup free?
Yes. MIME Type Lookup and all 300+ tools on MagmaNex are completely free with no signup or account required.
Is my data safe?
Yes. Everything runs locally in your browser. The data you enter is never sent to a server, stored, or shared.
Does it work on mobile?
Yes. MIME Type Lookup works on phones, tablets and desktops — no app download needed.
🔒 Privacy: everything runs in your browser, your data is never sent to a server.