Free MIME Type Checker Online - Fast & Private Web Utility
Look up the MIME type for any file extension or filename.
Runs entirely in your browser - your files are never uploaded
What is MIME Type Checker?
MIME Type Checker is a free, web-based utility designed for instant, local developer tools tasks. It allows users to compute, format, convert, or edit data directly in their browser without installing software or registering an account.
- 100% Free & Unlimited Usage
- 0% File Uploads (100% Client-Side Privacy)
- Instant Real-Time Calculations
- Mobile, Tablet & Desktop Compatible
How to use MIME Type Checker
Select or Enter Input
Provide your source file or type your values into MIME Type Checker.
Configure Settings
Adjust parameters, formatting options, or units in real-time.
Get Instant Output
Download the final processed file or copy the generated output.
Features & Overview of MIME Type Checker
Setting the wrong Content-Type header makes browsers download files instead of rendering them, or block scripts entirely. Type an extension, a full filename or a search term to find the correct media type instantly.
You can also drop a real file in to see the type your browser reports for it - useful when validating an upload pipeline. The searchable table covers images, video, audio, fonts, archives, documents and web formats.
Frequently Asked Questions about MIME Type Checker
Answers to common questions regarding MIME Type Checker features, data privacy, and usage.
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