MKV is an open and highly capable video "container format" that supports multiple audio tracks and multiple subtitles, so sometimes we need to convert MP4 videos to MKV format. HeSoft Doc Batch Tool can batch convert video formats; we just need to select the target format, import all the videos, and the conversion is done. It is easy to use, processes quickly, and also supports batch conversion of videos to MP4, AVI, MOV, and other formats.
When should you convert video to MKV format?
1. The MKV format supports multiple audio tracks and multiple subtitles. If you need to switch between video languages and subtitles at any time—for example, switching between the original English audio and a Chinese dub, or switching between Chinese and English subtitles—converting to MKV format is very convenient. This functionality is difficult to achieve with the standard MP4 format, or is very troublesome to implement.
2. The MKV video format offers good support for high-specification audio. For videos like concerts and original movie discs where you need to retain high-quality audio, converting to MKV format is the most suitable choice. Standard formats like MP4 and AVI have limited support for advanced audio.
3. If you need to add a lot of content to a video, such as adding multiple audio dubs, multi-language subtitles, or inserting other video clips, MKV can contain everything in a single file. Other video formats lack the capacity of MKV.
Preview of MP4 to MKV Conversion Results
Before processing:

After processing:

Steps to Batch Convert MP4 Videos to MKV Format
1. Open [ HeSoft Doc Batch Tool ] and select [Video Tools] - [Convert Video to MKV].

2. Click Add File or Import from Folder to add all the videos you need to convert. It supports adding various video formats like MP4, AVI, MOV, FLV, WMV, WEBM, and more.

3. Once processing is complete, check the save location. All videos have been converted to MKV format.
