MKV to MP4 Converter
Convert MKV videos to MP4 format. Perfect for streaming and mobile devices. Uses H.264 codec for universal compatibility. Free online converter.
How to Convert MKV to MP4
- 1 Click to upload your MKV video file
- 2 Select the output quality setting
- 3 Click Convert to MP4 to start the conversion
- 4 Wait for the processing to complete
- 5 Download your converted MP4 file
Frequently Asked Questions
How does browser-based video processing work? ▼
MagicKit uses FFmpeg compiled to WebAssembly (WASM). This brings professional video editing capabilities directly to your browser.
What video formats are supported? ▼
MP4, WebM, MOV, and AVI. Some tools also support MKV and other formats.
Is there a file size limit for videos? ▼
We recommend files under 500MB for optimal browser performance. Larger files will work but may be slower.
Why does video processing take time? ▼
Video encoding is computationally intensive. Processing happens on your device, so speed depends on your computer's capabilities.
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Last updated: January 15, 2026 · v2.1