Free Online MKV to MP4 Converter

Extract audio from your MKV file using our fast and free MKV to MP4 converter. Use our MKV ripping tool to separate out the audio track from your uploaded MKV, which can then be downloaded as an independent MP4 file. You can also batch rip MKV files with our batch MKV to MP4 converter, where you can upload as many as 20 files at a time.

Select File(s)

Or drag and drop your files here to upload.
A maximum of 20 files can be uploaded at once.

Please note: Your MKV file, once uploaded to our server, will be deleted 15 minutes after upload, so please download your converted MKV file before this time.

Click the button above and select the MKV video files you want to rip the audio from. Once selected, you can alter the bitrate of the generated MP4 file by clicking button if you want to. The default settings will leave the audio quality unchanged.

How to Convert your MKV to MP4 Online?

Here are two simple steps to convert your MKV to MP4 using our fast and free MKV converter tool.

Upload your MKV file

Click the "Upload a MKV File" button, then select a MKV to upload. The maximum file size is 100MB.

Download your MP4

Click the download link to receive your MP4 file.

Frequently Asked Questions

How can I convert my MKV file to MP4?

First, click the "Upload..." button and select your MKV file to upload. Your MKV file will be uploaded to our servers. When the MKV to MP4 conversion has completed, you can download your MP4 file right away.

How long does it take to convert my MKV to MP4?

We aim to process all MKV to MP4 conversions as quickly as possible; this usually takes around 5 seconds; however, this can be longer for certain files, so please be patient.

How accurate is the MKV to MP4 conversion?

We aim to provide the best conversion experience. Our tools are under constant review and development, with new features being added every week.

File format information for MKV and MP4

Extension	MKV
Full Name	Matroska Multimedia Container
Type	Video
Mime Type	video/x-matroska
Format	Binary

An MKV file, or Matroska Video File, is an audio/video file format created to store multimedia data in a highly compressed format. The MKV format supports a wide variety of audio and video codecs and is a popular format for distributing video files.

The format itself is a container format, meaning it supports many different audio and video tracks, all using different codecs. Along with audio and video, other data, such as chapters, markers, sub-titles, and other useful data, can be stored within the file.

Support for editing MKV files is widespread, with most video editing applications able to open MKV files. Video playback software, however, can sometimes struggle to playback MKV files if they are not equipped with the correct codecs.

Extension	MP4
Full Name	MPEG-4
Type	Video
Mime Type	video/mp4
Format	Binary

An MP4 file is a modern standard format for storing high-quality motion video in a highly compact and efficient file size. The specific compression algorithm used within an MP4 file can vary from file to file; however, they all enable what would otherwise be a large amount of uncompressed data to be reduced to a fraction of the original size with little or no noticeable difference in playback quality.

Due to their widespread support, MP4 files can be loaded into most video editing applications and played with most video playback software with no additional drivers. Most video sharing sites, such as YouTube, support MP4 as a format when uploading, and most tablets and smart phones can record in the MP4 format.

Audio stored within an MP4 file is usually stored in the MP3 format, taking advantage of that format's high quality and compression capabilities.

Information for converting from MKV to MP4

Our MKV and MP4 will attempt to convert these video format files with little or no loss in quality. You can upload video files up to 100MB in size; however, with large MKV files, please allow time for converting to a MP4.