All tools / Video Compressor / MKV to MP4
MKV to MP4, without uploading
Convert MKV videos to widely supported MP4. Convert MKV files to MP4 right in your browser — free, private and works offline.
How to convert MKV to MP4
- Drop your MKV file above (or paste).
- Video Compressor opens with MP4 selected. Adjust quality or size if you like.
- Download the MP4 result.
Is it safe to convert MKV to MP4 here?
Yes. The conversion runs inside your browser with Video Compressor. Your files are never uploaded to a server.
Is there a file size or count limit?
No daily limits and no account. Very large files are limited only by your device’s memory.
Does it work offline?
Yes — once ToolWand has loaded, it keeps working without an internet connection.