MIME Types Lookup - Free Online IT Tool

📄 MIME Types Lookup

Convert MIME types to file extensions and vice-versa.

ℹ️ About MIME Types Lookup

The MIME Types Lookup tool is an essential reference for developers and system administrators who need to manage file formats and web headers. A MIME type (Multipurpose Internet Mail Extensions) is a standard way of classifying file types on the internet. It tells a web browser or email client how to handle a specific file (e.g., whether to display it as an image, play it as video, or download it as a PDF).

This tool provides a bidirectional lookup: you can enter a file extension (like .json) to find its official MIME type (application/json), or enter a MIME type to find its most common file extension. This is particularly useful when configuring web servers, setting up Content-Type headers in APIs, or writing code that handles dynamic file uploads.

📖 How to use MIME Types Lookup

1. Enter a file extension (with or without the dot, e.g., .pdf or jpg) or a full MIME type (e.g., text/html).
2. Click 'Run Tool' to perform the conversion.
3. Review the resulting MIME type or suggested file extension.
4. Use the 'Mode' field to confirm if the tool interpreted your input as an extension or a MIME type.

❓ Frequently Asked Questions

What does MIME stand for?

MIME stands for Multipurpose Internet Mail Extensions, a standard originally designed for email but now used across the entire web to identify data formats.

Why is my extension showing as 'Unknown'?

If an extension is highly specialized or not part of the standard operating system database, it may not be recognized. Common web formats (png, html, js, etc.) are always supported.