Convert MP4 to MKV — Free Online
Convert MPEG-4 Part 14 to Matroska Video format online. Open container with advanced features. Free converter with no registration, no watermarks....
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Supports: MP4 files
Max: 100MB (free) · 2GB (Pro)
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Files auto-deleted after processing
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Works Everywhere
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How to Convert
Upload your .mp4 file by dragging it into the upload area or clicking to browse.
Choose your output settings. The default settings work great for most files.
Click Convert and download your .mkv file when it's ready.
About MP4 to MKV Conversion
Need to share or edit your MP4 videos? Converting to MKV format opens up new possibilities. Open container with advanced features, making it ideal for HD video archival, Anime distribution, Media servers. Our converter processes your video files using professional-grade encoding to deliver the best possible results.
Why Convert MP4 to MKV?
**Device Support:** MKV format enjoys broader support across devices and operating systems than MP4. Mobile phones, tablets, computers, and smart devices handle MKV files natively, eliminating the need for specialized apps or codecs.
**Professional Output:** MKV format's Multiple audio tracks ensure your converted files meet professional standards. Whether for web, print, or distribution, the quality satisfies demanding requirements.
**Standardization:** Using MKV as a standard format simplifies file management. Consistent formats across your library reduce complexity and improve organization.
Common Use Cases
- Import MP4 footage into video editing software requiring MKV
- Stream video content using MKV's optimized delivery
- Archive MP4 videos in the more universal MKV format
- Prepare MP4 content for web embedding and HTML5 players
- Share MP4 videos on social media platforms that prefer MKV
How It Works
Our converter leverages FFmpeg multimedia framework for precise MP4 to MKV transformation. This professional-grade engine handles Container format supporting multiple codecs, typically H.264 video with AAC audio input and produces open standard container supporting virtually any codec combination output.
The conversion process decodes your MP4 content fully, then re-encodes using MKV's optimal settings. This ensures multiple audio tracks in the final file.
Processing happens on secure cloud infrastructure with automatic file deletion after conversion. Your video files never touch local storage.
Quality & Performance
High-quality encoding ensures the MKV output is practically indistinguishable from your MP4 source under normal playback conditions.
Start converting your MP4 files to MKV format now. Our free online converter delivers high-quality results with fast processing, secure handling, and no software installation required.