🎬Video Converter

MP4 to MKV Converter

Convert MP4 videos to MKV format for multiple audio tracks and subtitle support.

Free to Start

No Registration

Secure & Private

About MP4 to MKV Conversion

Converting MP4 files to MKV format is a common task for video professionals and enthusiasts. Our online MP4 to MKV converter makes this process simple, fast, and secure.

Start converting for free with our basic tier, or upgrade to Pro for higher file limits, faster processing, and batch conversions. No registration required to get started — simply upload your MP4 files and convert instantly.

How to Convert MP4 to MKV

Follow these simple steps to convert your MP4 files to MKV format

Upload Your File

Click the upload button or drag and drop your MP4 file into the converter. You can select multiple files if needed.

Automatic Conversion

Our tool will automatically convert your MP4 file to MKV format in seconds. All processing happens securely and privately.

Download Result

Once the conversion is complete, click the download button to save your new MKV file to your device.

Why Use Our MP4 to MKV Converter?

The best online tool for converting MP4 to MKV files

Lightning Fast

Convert MP4 to MKV in seconds with our optimized processing engine.

Secure Processing

Enterprise-grade security ensures your MP4 files are protected.

Free & Pro Tiers

Start converting for free. Upgrade to Pro for higher limits and batch processing.

High Quality Output

Maintain the best possible quality when converting MP4 to MKV.

Works on All Devices

Use our converter on desktop, tablet, or mobile seamlessly.

No Installation

Works entirely in your browser. No software to download.

Frequently Asked Questions

Common questions about converting MP4 to MKV

How do I convert MP4 to MKV?

Simply upload your MP4 file using our converter above, and it will automatically convert to MKV format. Then download the converted file. No registration or software installation required.

Is it free to convert MP4 to MKV?

Yes! You can start converting MP4 to MKV for free with our basic tier. For higher file limits, faster processing, and batch conversions, upgrade to Pro.

Is it safe to convert MP4 files here?

Absolutely! We use enterprise-grade security to protect your MP4 files during conversion. Your data is handled securely and privately throughout the entire process.

What is the maximum file size I can convert?

Free tier users can convert files up to 25MB each. Pro users get higher limits up to 500MB per file.

Can I convert multiple MP4 files at once?

Yes, you can select multiple MP4 files and convert them to MKV format in batch. This saves time when you need to convert many files.

Do I need to install any software?

No installation required! Our MP4 to MKV converter works entirely online. Just visit this page, upload your files, and start converting.