Popular Video Conversions
MP4 to MKV Conversion Guide
Converting MP4 videos to MKV format is essential for advanced features like multiple audio tracks and subtitles. MP4 files are universal compatibility and wide device support, while MKV offers flexible container supporting multiple streams. This conversion is commonly needed for web streaming, mobile devices, social media to high-quality archival, multiple audio tracks, subtitles.
Why Convert MP4 to MKV?
Converting from mp4 to mkv provides better compatibility and optimization for your specific use case. Our browser-based converter uses FFmpeg.wasm to handle this conversion without uploading files to any server, ensuring complete privacy and fast processing.
How to Convert MP4 to MKV
Simply drag your MP4 files into the upload zone, select MKV as the output format, and click Convert. The tool processes videos locally using FFmpeg compiled to WebAssembly, maintaining quality while converting to MKV format. Download individual files or get everything as a ZIP archive for batch conversions.