MIME Type Lookup

# 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

1. 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.
2. Filter by category — Use the category dropdown to narrow results to text, image, audio, video, application, font, message, model, or multipart types.
3. Browse results — The table shows matching MIME types with their extensions, category, and description. The result count updates as you filter and search.
4. 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