Convert MKV to MP4 Online Free
Convert MKV (Matroska) videos to MP4 format for maximum compatibility. Fast, secure, and unlimited conversions directly in your browser with no file uploads.
- 100% Free
- No Upload Required
- Unlimited Conversions
- Fast & Private
Drag and drop video file
or browse to choose a file
Why Convert MKV to MP4?
Better Device Support
While MKV offers excellent quality, MP4 is supported by virtually every device and platform. Convert MKV to MP4 to play your videos on smartphones, smart TVs, gaming consoles, and older media players.
Streaming Platform Compatibility
YouTube, Vimeo, and most video hosting platforms prefer MP4 format. Converting your MKV files ensures smooth uploads, faster processing, and better compatibility across streaming services.
Mobile-Friendly Format
MP4 plays natively on iOS and Android devices without requiring third-party apps. Share your converted videos via WhatsApp, Telegram, or email, and recipients can view them instantly.
Smaller File Sizes
MP4 with H.264 codec provides excellent compression while maintaining visual quality. Convert large MKV files to optimized MP4 for easier storage, faster uploads, and reduced bandwidth usage.
How to Convert MKV to MP4
- 1Upload Your MKV File
Drag and drop your Matroska .mkv file into the upload area above, or click to browse your files. Your video is processed locally - no server uploads.
- 2Choose Quality Settings
Select your desired output quality. High quality preserves the original video quality, while Medium and Low options reduce file size.
- 3Convert & Download
Click "Convert MKV to MP4" and watch the conversion progress in real-time. Download your universally-compatible MP4 video when complete.
MKV vs MP4: Format Comparison
| Feature | MKV (Matroska) | MP4 (MPEG-4) |
|---|---|---|
| Compatibility | Limited device support | Universal compatibility |
| File Size | Larger (lossless) | Smaller, optimized |
| Streaming Support | Poor streaming | Excellent streaming |
| Multi-Audio/Subtitle | Excellent support | Good support |
| Best For | Archiving, multiple tracks | Sharing, streaming, devices |
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