How to convert MP4 to MKV
1. Upload MP4
Select or drag and drop your MP4 file into the converter.
2. Choose MKV
Select MKV as your output format. You can process multiple files at once.
3. Download
Click convert and download your new MKV file instantly.
Format Details
MP4
MP4 (MPEG-4 Part 14) is the most widely used digital video container format, storing H.264/H.265 video and AAC audio for web, mobile, and broadcast delivery.
MKV
MKV (Matroska Video) is a flexible open container that can hold multiple video, audio, and subtitle tracks in one file.
Frequently Asked Questions
How do I convert MP4 to MKV?
Upload your MP4 file on Convertek, select MKV as the output format, then click Convert. Your MKV file will be ready to download instantly.
Is the MP4 to MKV converter free?
Yes. Converting MP4 to MKV on Convertek is completely free with no watermarks. Fair upload limits apply (typically 30 MB per file).
Is my file kept after conversion?
No. Files are processed temporarily and not stored permanently. Converted downloads are available only in your browser session.
What is the difference between MP4 and MKV?
MP4 and MKV are different file formats with distinct use cases. Converting between them lets you use your file in software or workflows that require the MKV format.