MKV to MP4 Converter Free Online Tool

Convert MKV videos to MP4 for easier playback and sharing. Works well for high-quality videos, subtitle files and videos that are hard to play.

🔒MKV to MP4

✨No watermark

⚡Local processing

Choose an MKV video

Drag and drop your video here, or click to select a file.

Browse Files

MKV, high-quality videos and subtitle videos · Output MP4

Output format

Your video is processed in your browser. The MKV file is converted to MP4 on your device using FFmpeg WebAssembly and is not uploaded to our servers.

How to use this tool

1 Upload your file

Choose a file from your device, or drag and drop it into the tool area. Your file is ready to process in just a few seconds.

2 Adjust the settings

Pick the output option, quality level, target size, or format you need. You can keep the default settings for a quick result.

3 Process and download

Start the tool, wait for the browser to finish processing, then download the finished file directly to your device.

Frequently Asked Questions

Can I convert MKV to MP4 for free?

Yes. Squishyfile lets you convert MKV to MP4 for free without installing software or creating an account.

Will my MKV video be uploaded?

No. MKV to MP4 conversion happens in your browser, so your file stays on your device.

Can I convert MKV files with subtitles?

Most MKV files can be converted to MP4. However, special subtitles, multiple audio tracks, chapters or advanced container data may not always be preserved exactly in a simple MP4 output.

Does it work on Mac and Windows?

Yes. Squishyfile works in modern browsers on Mac, Windows, Linux, iPhone and Android.

Will the MP4 file have a watermark?

No. The downloaded MP4 file will not include a Squishyfile watermark.

Do I need to install software to convert MKV to MP4?

No. You can choose an MKV file and convert it to MP4 directly in your browser.

Why convert MKV to MP4?

MKV is often used for high-quality videos, subtitles and multiple audio tracks, but some phones, browsers, social platforms and editing apps support MP4 better.

What happens if I close the tab during conversion?

The conversion will stop. Keep the tab open until your MP4 file is ready to download.

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