Convert MKV to MP4
Online & free tool to convert MKV files to MP4

1) Input file

Choose source file(s) to convert:

0 of 5 files added (up to 1000 MB combined)

2) Output format

Select a target format to convert to:

3) Convert

By clicking you agree to our terms

Fine-tune conversion output with format-specific controls.

No advanced controls available for this format.

1) File URL

Choose file URL to convert:

2) Output format

Select a target format to convert to:

3) Convert

By clicking you agree to our terms

Fine-tune conversion output with format-specific controls.

No advanced controls available for this format.

1) Cloud Service

Choose a cloud service provider:

2) Output format

Select a target format to convert to:

3) Convert

By clicking you agree to our terms

Fine-tune conversion output with format-specific controls.

No advanced controls available for this format.
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MKV The Matroska video file format, .mkv, is an open source video file container which is part of the larger open source Matroska Multimedia Container which includes .mka (audio), .mks (subtitles), and .mk3D (stereoscopic video). It was first developed in 2002 and is today favored by many video authors because of the size of produced files. In 2010 the mkv format became the basis of the popular browser independent open format called WebM with several free video players providing playback support for video files encoded in .mkv. Microsoft Windows does not have native support for .mkv video files but there are plans to include native playback support in Microsoft's upcoming operating system Windows 10.
MP4 The MP4 file format and the .mp4 filename extension refer to the MPEG-4 part 14 digital multimedia format developed by the Moving Picture Experts Group. It is used as a multimedia container to wrap encoded digital video and audio streams, including subtitles and still images if required. In recent decades, the format has been popularized as one of the main standards for streaming media over the internet and other computer networks and for the digital distribution of large multimedia files. MP4 supports a large number of compression audio codecs allowing files in this format to maintain a relatively small size without discounting playback quality.

Trusted conversion quality

FreeFileConvert uses tuned encoding for MKV to MP4 conversions, preserving clarity while trimming file size. Finished audio streams instantly across phones, tablets, desktops, and modern browsers without extra tweaks.

Seamless workflow

Upload MKV files from desktop, tablet, or cloud storage, queue multiple jobs, and let the converter finish autonomously. Return whenever convenient to download synchronized MP4 results on any device you rely on.

Batch support for teams

Process up to 5 files sized 1000 MB per batch without splitting queues manually. Mixed-format uploads convert together, producing consistent MP4 audio with dependable progress tracking.

About MKV

How to open MKV files

VirtuldubMod
VLC player
MPlayer
Media Player Classic
Window Mediaplayer
Perian (OS X)
Quicktime
Xine
Zoomplayer

Technical details

Any video player that supports DirectShow parser filters can play .mkv files once the correct decoder filers for the video file are installed. Players such as VLC or Xine have native support for .mkv files which eliminates the need to install the DirectShow de…

Any video player that supports DirectShow parser filters can play .mkv files once the correct decoder filers for the video file are installed. Players such as VLC or Xine have native support for .mkv files which eliminates the need to install the DirectShow decoder filter onto the operating system. The .mkv file format is capable of supporting chapter points, subtitles, different audio streams, video, and well as metadata such as file descriptions, synopsis, cover art and more.

About MP4

How to open MP4 files

Media Player Classic
VLC Player
WinAmp
QuickTime
iTunes
Read more...

Technical details

The MPEG-4 Part 14 is standardized as part of the MPEG-4 format in ISO/IEC 14496-14:2003. It is recognized as a container format for audio and video streams and references several filename extensions of which .mp4 is one. The MPEG-4 Part 14 is in many ways ide…

The MPEG-4 Part 14 is standardized as part of the MPEG-4 format in ISO/IEC 14496-14:2003. It is recognized as a container format for audio and video streams and references several filename extensions of which .mp4 is one. The MPEG-4 Part 14 is in many ways identical to Apple's QuickTime format which formed the basis of MPEG-4. However, there are slight differences in compatibility with other previously standardized MPEG features and the added support for IOD or initial object descriptors which describe elementary data streams and set profile information of the resources needed for content playback.

How to convert MKV to MP4

STEP 1

Upload your video file in the MKV format from your device, Dropbox, or Google Drive.

STEP 2

Select MP4 as the output format and click Convert. Adjust optional settings if needed.

STEP 3

Download the converted video file. Each file stays available for up to 5 downloads.

Your data, our priority

  • 256-bit SSL encrypted uploads and downloads
  • Automatic file deletion shortly after conversion completes
  • Reliable global infrastructure for consistent performance

Overall Rating: (398 Votes)