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WorkinTool Free Online MKV to MP4 Converter | Convert MKV to MP4 for Free

Try this practical and free MKV converter to change MKV to MP4 in batches online without watermark.
File Size Limit: 10 MB.
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How to Convert MKV to MP4 for Free Online

Step 1
Click on the orange + icon to upload your MKV video.
Step 2
Hit Convert to start your conversion.
Step 3
Press Download to export your converted MP4 file.

Fail to convert video larger than 10 MB?

The desktop WorkinTool Video Converter can convert MKV to MP4 with no limits on the file size. Free download it to transform videos in bulk.

What is MKV?

MKV, short for Matroska Multimedia Container, is a file format used to store video, audio and subtitles in a single file. It is an open-source, free container format widely used for storing high-definition videos. MKV files are similar to other video container formats, such as MP4 and AVI, but they offer several advantages. For instance, MKV files can contain multiple video, audio and subtitle tracks, which makes them ideal for storing movies with multiple language tracks or subtitles. Additionally, MKV files support advanced features such as chapter markers, metadata and menus, which can provide a more interactive viewing experience.

How to open an MKV file?

An MKV file is highly adaptable and can be playable on a wide range of devices and media players. However, some older devices and media players may not support the MKV format. In this case, you need to convert the file to a different format.
  • Windows: Windows Media Player, VLC Media Player, Microsoft Photos, WorkinTool VidClipper, etc.

  • Mac: QuickTime Player, VLC Media Player, etc.

MKV vs MP4

  • Features
  • MP4
  • MKV
  • Video Quality
  • Relatively lower clarity
  • Higher quality
  • File Size
  • Smaller
  • Larger
  • Compatibility
  • Compatible with nearly all devices and platforms.
  • Very limited platform compatibility. It can only be played on video players like XBMC, PotPlayer and VLC.

More Than an MKV to MP4 Converter

Key Features of WorkinTool Online MKV to MP4 Converter

Free to Convert & Export Videos
Free to Convert & Export Videos
This online MKV converter is 100% free to use. No hidden requirements, even personal registration, are needed regardless of how often you use it.
Export MP4 Videos in HD
Export MP4 Videos in HD
It enables you to change .mkv to .mp4 without losing quality. You can obtain MP4 videos in high resolution.
Web-Based Operations
Web-Based Operations
This online video format changer supports batch conversion. You can convert up to four video files at a time.
No Need to Wait for a Long While
No Need to Wait for a Long While
The uploading, converting as well as downloading process only take seconds. In just a while, you can finish the conversion.
Free of Ads and Pop-Ups
Free of Ads and Pop-Ups
There are no advertisements and pop-ups throughout the transforming process.
Super Secure
Super Secure
WorkinTool free online MKV to MP4 converter is highly secure. In addition to the fact that this online tool is protected by the latest technology, all your files will be removed automatically within 24 hours.

MKV to MP4 Converter | Offline vs Online

  • Converting Speed
  • More stable conversion speed
  • Generally fast but dependent on your internet connection
  • Video Clarity
  • Various video resolution options
  • Export clear videos
  • File Limits
  • No file size/number limits
  • Up to 10 MB/one file in total
  • Functions
  • More features: audio conversion, video/audio editing, etc.
  • Video conversion only
  • Compatibility
  • Windows only
  • Online; available to any device

MKV to MP4 Converter

Start Your Free Trial Now!
Free download our video converter software--WorkinTool VidClipper to easily undertake the mutual conversion of multi-formatted videos. Additionally, you will be amazed by this multi-functional tool and unlock all its magic, including audio conversion, video/audio editing, screen recording, video compression/merging/splitting and more. Please get it now to enjoy all of these features and more.
Free Download For Win 11/10/8/7