MKV video compression online for free. Compress Matroska MKV files while maintaining quality and open-source compatibility with multi-track support.
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Optimize your Matroska MKV files with multi-track support in 3 steps
Select your Matroska MKV video file or drag & drop it into the MKV compressor
Advanced Matroska compression with multi-track support, subtitle preservation, and open-source codec optimization
Start compression and download your optimized MKV file with perfect open-source compatibility
Matroska optimization with multi-track support and open-source compatibility
Advanced Matroska container optimization specifically designed for MKV format with support for unlimited video, audio, and subtitle tracks. Maintains complete metadata preservation and chapter information while ensuring cross-platform compatibility.
Unlimited multi-track support for video, audio, and subtitle streams with language metadata preservation. Perfect for international content, commentary tracks, and multi-language presentations with complete track selection control.
Complete open-source compatibility with FFmpeg, VLC, and all major open-source media players. Ensures maximum compatibility across Linux, Windows, and macOS with community-driven codec support and no licensing restrictions.
See what open-source media experts say about our MKV video compressor
"Matroska container optimization is incredible! Multi-track support works flawlessly with perfect metadata preservation. Exactly what we needed for our projects!"
"Multi-track support is outstanding! Unlimited video, audio, and subtitle tracks with perfect language metadata. International content has never been easier!"
"Open source compatibility is amazing! Perfect FFmpeg and VLC support with no licensing restrictions. Community-driven excellence at its finest!"
"MKV compression quality is exceptional! Perfect for complex multi-track projects and cross-platform compatibility. Quality and features are unmatched!"
Everything you need to know about Matroska MKV compression
Start compressing with Matroska optimization today
Free, open-source MKV compression with multi-track support and universal compatibility