MP4 to MKV MP4 to MKV

MP4 → MKV: first video and audio without re-encoding

The first video and first audio stream are copied into MKV without re-encoding. Subtitles, additional audio languages and data tracks are not included. Codec support, rotation and metadata depend on the container and player; keep the MP4 and verify playback. An incompatible stream causes an error, not a silent lossy fallback.

  1. Upload a readable MP4 video.
  2. Convert and download MKV.
  3. Compare picture, sound, duration and required tracks in a compatible player.

Conversion settings

Choose settings before adding files. The same settings apply to the whole batch.

Conversion settings
More options

The video keeps its original proportions. Resizing does not enlarge a smaller source.

Choose File MP4 → MKV Drag & drop files here … (or click to select files) or drop an archive with files Upload file

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Free uses and credits

One successful conversion is free per account, once across all file converters. After that, each source file is charged at the displayed rate.

≤1080p: Cost in credits: 1. / 3 min

>1080p: Cost in credits: 2. / 3 min

Price list
Duration ≤1080p · credits >1080p · credits
00:01:00 1 2
00:10:00 4 8
00:30:00 10 20
01:00:00 20 40
02:00:00 40 80

The exact price is shown before processing starts.

Credits or a free use are spent only after the results are saved. Getting the same ready files again is free.

Paid durations are rounded up to the stated block. You never pay more than the confirmed price. Maximum file limits remain unchanged.

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Credits or a free use are spent only after the results are saved. Getting the same ready files again is free.

Quick start

MP4 → MKV: first video and audio without re-encoding

  1. Upload a readable MP4 video.
  2. Convert and download MKV.
  3. Compare picture, sound, duration and required tracks in a compatible player.

MP4 to MKV

Upload an MP4 video and save it as MKV for publishing, editing, archiving or device compatibility.



MP4 is an abbreviation for MPEG-4 Part 14. It can also be called MPEG-4 AVC. In this case, the abbreviation AVC (Advanced Video Coding) is an advanced video encoding. By the name of the format, it is easy to guess that it is necessary for working with video files. The format was first proposed in 1998. Since then, MP4 is considered one of the most common file formats used to store and transmit multimedia. MP4 is a container format that provides the ability to combine audio, video, subtitles and pictures in one file. It is also suitable for posting rich content. Say three-dimensional graphics, menus and interactive features. There are many portable players and other devices that play MP4. For this, a PC or laptop is also quite suitable. The MP4 format is a robust application that needs relatively low performance. And therefore, users could use such a tool for their own purposes. This tool has found wide application, as the technology for the production of more and more powerful devices, both portable and desktop with a large hard drive capacity, is constantly evolving. Due to the fact that the speeds of various types of connections to the global network are increasing, MP4 has become more affordable. It acts like the MP3 format, although it is more complex. The format compresses files and remains high-quality.

MKV is an open container format for audio and video data created by Russian developers. The name of the format originates from the name of the project - Matroska (Matryoshka) with the addition of the first letter of the word Video. This format is considered an alternative to the much more popular AVI, but has not yet reached such a scale of distribution. MKV files are quite common among owners of fairly old mobile devices with Symbian OS and at the same time among those who prefer to watch video in FullHD, since MKV has good dynamics of transmitting video / audio streams. MKV with a wide range of features, in particular, storing audio tracks in different languages, is easy to edit, there are no freezes in large files.

Supported formats

This converter shows the accepted source formats and the result format.

Input files
F4V M4V MP4 MKV 3GP 3GPP OGV MOV AVI ASF FLV WMV VOB M2TS MTS TS WEBM DIVX MPG MPEG M2V VCD
Result
MKV

A damaged file or a non-standard codec can still fail even when the extension is supported.

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