Find MIME types and content types for file extensions instantly
MIME type information will appear here...
A MIME type lookup tool helps you find the correct MIME type (also called Content-Type) for any file extension such as .pdf, .png, .jpg, .mp4, .json, .csv, and more. MIME types are critical in web development, APIs, uploads, browsers, and servers because they tell the browser how to handle a file — whether it should render as an image, display as text, download as a file, or be interpreted as JSON. Correct MIME types prevent broken file handling, ensure proper caching and security behavior, and reduce errors in uploads, CDN delivery, and HTTP responses. This online MIME type lookup instantly returns the standard MIME type for any extension with support for input with or without a dot.
Enter a file extension into the input box (for example: pdf, .png, mp4, json)
Click Lookup to search the MIME type database
View the correct MIME type (Content-Type) for that file extension
Copy the MIME type value and use it in HTTP headers, APIs, uploads, or server configuration
Repeat for other extensions when building file handling systems or upload validation
Set Correct Content-Type Headers: Use MIME types for HTTP responses and API endpoints
Fix Upload Issues: Validate MIME types during file uploads and input validation
CDN and Caching Configuration: Ensure proper MIME types for static file delivery
Backend Debugging: Debug issues where files download instead of render (or vice versa)
Frontend File Handling: Detect file type behavior in browsers and file viewers
Security and Compliance: Prevent serving executable content under wrong MIME types (MIME sniffing vulnerabilities)
Fast results for file extensions in one click
Both 'pdf' and '.pdf' return correct results
Uses common MIME type mappings used in browsers and servers
Useful for APIs, file uploads, HTTP headers, and server configs
Helps prevent broken downloads and display issues
No files uploaded — you only enter text extensions