Click the «Choose files» button and select the MP4 files you want to convert to MKV.
Select «MKV» as the target format. Click «Convert» to start converting MP4 to MKV. It only takes a few seconds.
Done! Your MP4 file has been converted to MKV format. You can download it to your device.
MP4 is a digital multimedia format most commonly used to store video and audio but can also store other data such as subtitles and still images. Like most modern container formats, it allows streaming over the Internet.
MKV (Matroska) is an open standard free container format that can hold unlimited video, audio, picture, or subtitle tracks in one file. It is intended to serve as a universal format for storing common multimedia content, like movies or TV shows.
| 🔁 Conversion | MP4 to MKV |
| ⏱ Time to convert | 20 seconds |
| 💳 Cost | Free |
| 📂 File types | Video |
| ✳️ File extensions | .mp4, .mkv |
| 📏 File size limit | 75 MB |
| 👩💻 Supported OS | Windows, Linux, MacOS, iOS, Android |
You don't need to download and install any software to convert .mp4 files to .mkv format. All conversions take place in the cloud.
Your files are completely safe and accessible only to you. All files will be permanently deleted within 2 hours after conversion.
Convert your mp4 files to mkv in 2 clicks. And don't pay anything for it! Our MP4 to MKV Converter is free for all users.