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MIME Type Lookup
Lookup MIME types by file extension or content type with detailed descriptions.
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What Is a MIME Type Lookup Tool?
A MIME (Multipurpose Internet Mail Extensions) type lookup tool helps you find the correct MIME/Media type for any file extension, or conversely, find all file extensions associated with a given MIME type. MIME types are standardized identifiers used on the internet to indicate the nature and format of a file — for example, text/html for HTML files, image/png for PNG images, and application/pdf for PDF documents. Web servers use MIME types via the Content-Type header to tell browsers how to handle downloaded content.
This tool is invaluable for web developers configuring server MIME mappings, DevOps engineers troubleshooting content delivery issues, and anyone building applications that serve or process files. It includes a comprehensive database covering text, image, audio, video, application, font, and other types, with the ability to search by extension, MIME type, or category. The reverse lookup feature lets you paste a MIME type and instantly see all associated extensions.
How to Use This Lookup Tool
- Search by extension or MIME type — Type a file extension (e.g.,
pdf,jpg,html) or a MIME type (e.g.,image/png) into the search box. Results filter in real time as you type. - Filter by category — Use the category dropdown to narrow results to text, image, audio, video, application, font, message, model, or multipart types.
- Browse results — The table shows matching MIME types with their extensions, category, and description. The result count updates as you filter and search.
- Use reverse lookup — Paste a MIME type into the "Reverse Lookup" section and click "Lookup" to find all file extensions associated with that type.
Frequently Asked Questions
What is a MIME type and why is it important?
A MIME (Multipurpose Internet Mail Extensions) type is a standard identifier that tells a web browser or application how to interpret a file. For example, text/htmlapplication/pdf prompts it to open a PDF viewer. Incorrect MIME types can cause broken downloads or rendering issues.
How do I configure MIME types on my web server?
On Apache, use AddType directives in .htaccess or mime.types. On Nginx, use the types block in your server configuration. Most servers already have a default MIME type map — this tool helps you find the correct value to add or override.
What is the difference between text and application types?
text/* types (e.g., text/html, text/css) are human-readable and should be served with character encoding information. application/* types (e.g., application/json, application/pdf) represent binary or structured data that requires specific processing.
Can multiple extensions use the same MIME type?
Yes. Many file extensions share the same MIME type. For example, .jpeg, .jpg, and .jpe all map to image/jpeg. The reverse lookup feature shows all extensions associated with any given MIME type at once.
Is my data sent to a server?
No. The entire MIME type database is included in this page. All searches and lookups are performed locally in your browser with no data sent to any server.
Reverse Lookup
Enter a MIME type to find matching file extensions.
Last updated: 9 Jul 2026
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