File Type Checker Online – Detect File Format & MIME Type

Use our file type checker online to instantly detect file format and verify MIME type. Identify real file extensions, detect mismatched or suspicious files, and safely analyze unknown files directly in your browser. You can also validate remote files before opening.

What Our Tool Does

Check File MIME Type

Easily get the MIME type from any file using our file type checker. Supports all major formats including MP4, MP3, JPG, PNG, PDF, DOCX, GIF, MKV, WEBP, CSV, SVG and more. Quickly verify file format accuracy before opening or storing files.

Validate File Type & Detect Spoofing

Not all files are what they claim to be. Our file checker helps you detect spoofed or malicious files disguised as images, PDFs, or documents. Ensure the file extension matches its true format before opening.

Check Remote URL File Types

Verify file type before downloading. Our tool lets you check file type online from a remote URL, ensuring that a file matches its claimed format. Avoid downloading unsafe or misleading files instantly.

100% Browser-Based & Private

All processing happens directly in your browser. No uploads, no servers, and no data tracking. Your files stay completely private while using our file format detector.

Identify Unknown File Formats

Found an unknown file? Use our tool to detect its format and MIME type instantly. Perfect for developers, students, and anyone needing accurate file identification.

Bulk File Checking

Analyze multiple files at once with our file type checker. Quickly scan and validate several files in one go, saving time and improving productivity.

How To Identify A File Type

  1. 1

    Upload or Enter URL:Select a file from your device or enter a remote URL to check its file type and MIME type.

  2. 2

    Analyze & View Results:Instantly view file format details, MIME type, and validation results to confirm authenticity.

Why You Should Use Our Tools

Fast

Get results in milliseconds. Our optimized file type detection engine ensures instant analysis without delays.

Secure

No installations or external communication required. Everything runs locally in your browser for maximum security.

Privacy First

Your files never leave your device. We do not upload or store any data, ensuring complete privacy.

Free to Use

Enjoy unlimited access to our file type checker online at no cost. No subscriptions, no hidden fees.