MIME types (Multipurpose Internet Mail Extensions) tell browsers and servers how to handle different file formats. Configuring the correct MIME type is critical for serving files on the web — an incorrect Content-Type header can cause browsers to download files instead of displaying them, break API responses, or trigger security warnings. Our MIME Type Finder lets you search by file extension or MIME type string to instantly find the correct mapping. Whether you're setting up server configurations (like Nginx or Apache mime.types), building file upload validation, configuring API response headers, or troubleshooting why a file isn't rendering correctly in the browser, this tool provides the authoritative MIME type for hundreds of file formats. Browse by category — images, documents, audio, video, fonts, archives, and code — or search for any extension or type to get exactly what you need.
MIME Type Finder is a developer reference tool that lets you instantly look up the correct MIME type for any file extension, or search by MIME type string to discover which file formats it covers. The database includes over 200 entries spanning images, documents, audio, video, fonts, archives, and code formats. Every web server, API endpoint, and email system depends on MIME types to correctly identify and handle file content, making this reference essential for developers, DevOps engineers, and anyone configuring how files are served on the web.
MIME types (Multipurpose Internet Mail Extensions) follow a two-part format like 'image/png' or 'application/pdf' where the first part identifies the broad media category and the second identifies the specific format. Getting these right matters because an incorrect Content-Type header can cause browsers to download PDFs instead of displaying them, break JSON API responses, trigger security warnings from MIME-sniffing protection, or cause email attachments to render as unreadable binary. Use this tool alongside the HTTP Status Code Lookup to fully understand your server responses, or pair it with the cURL to Code Converter to test that your endpoints return the correct Content-Type header.
For developers working with encoded or transformed data, the Base64 Encoder is often used to embed binary files inline using data URIs that require the correct MIME type prefix. The HTML Entity Finder serves as a companion reference tool for encoding special characters in HTML content. If you need to verify that your server is returning the right security headers alongside Content-Type, the Security Headers Analyzer checks for X-Content-Type-Options and other critical headers that work in tandem with MIME type configuration.