Document & Markup Converter
About MIME Type Detector
The Comprehensive MIME Type & Internet Media Type Detector identifies standard MIME types (e.g. `image/png`, `application/json`, `text/html`), file extensions, RFC specifications, and Magic Byte hex signatures for 1,000+ file formats.
How to Use MIME Type Detector
Step 1
Type any file extension (e.g. `json`, `pdf`, `woff2`) or MIME string into the search bar.
Step 2
Review the official IANA media type, category, and file signature.
Step 3
Click to copy the `Content-Type` header value.
Practical Use Cases for MIME Type Detector
Configuring Web Server `Content-Type` Headers
Look up correct MIME types to configure Nginx, Apache, or AWS S3 bucket metadata for custom web font and video streaming assets.
File Upload Validation & Security Auditing
Verify corresponding MIME types and magic byte headers to validate multipart form file uploads in backend APIs.
Input & Output Examples
Looking up `.webp` MIME Type
Extension: "webp"
MIME Type: `image/webp` | Category: Image | Magic Bytes: `52 49 46 46 ... 57 45 42 50` ("RIFF...WEBP") | RFC: RFC 7903Key Features & Performance
- ✓Searchable database of 1,000+ official IANA MIME types and common unofficial formats.
- ✓Lookup by File Extension (e.g. `svg`, `wasm`, `avif`) or MIME Type (e.g. `video/mp4`).
- ✓Displays Magic Byte Hex signatures and HTTP Content-Type header examples.
- ✓100% Client-Side memory execution.
- ✓1-Click Copy MIME string.
Key Terminology & Definitions
MIME Type (Multipurpose Internet Mail Extensions)
A two-part identifier consisting of a type and a subtype (e.g. `application/pdf`) used to indicate the format of a file transmitted over the internet.
Magic Bytes (File Signature)
A specific sequence of bytes located at the very beginning of a file used by operating systems to determine the true file format independent of extension.