MKV to MP4 Converter

🎬

Upload Video

Drag & drop or click to select a video file

  1. Upload an MKV file.
  2. Optionally trim the time range.
  3. Click Convert and wait for completion.
  4. Download the MP4 file.

Help

FAQ

Will it keep the original quality?Show
The tool tries a fast remux first. If it fails, it may transcode for compatibility which can change quality and file size.
Is my file uploaded?Show
No. The conversion runs locally by default.

How to convert MKV to MP4

  1. Upload an MKV file.
  2. Optionally trim the time range.
  3. Click Convert and wait for completion.
  4. Download the MP4 file.

Privacy

Full guide

MKV to MP4 Converter

Convert MKV/Matroska videos to MP4 for better compatibility on all devices.

Features

  • Matroska Support: Handle MKV files with multiple audio/subtitle tracks
  • Lossless Remux: Try fast container change without re-encoding first
  • Time Trimming: Extract only the segments you need
  • 100% Local Processing: All conversion happens in your browser

Supported Formats

Input: MKV, Matroska video files

Output: MP4 (H.264/AAC)

Tips

  • MKV to MP4 often works via fast remux (no quality loss)
  • If remux fails, transcoding will be used automatically
  • Large MKV files may take longer to process in browser