Free & Instant

Convert MKV to MP4 Online — Free & Easy

Transform MKV Matroska video files to MP4 for universal playback.

Upload your file

Drag & drop your .mkv file here, or browse
Multiple files supported

.MKV.MP4

Maximum file size: 500 MB · Multiple files supported

100% private — files are processed in your browser, never uploaded

How It Works

MKV to MP4 in 4 Easy Steps

Convert MKV to MP4 in seconds — no sign-up, no upload, no catch.

  1. 1

    Upload MKV file

    Drop your .mkv file or click Browse.

  2. 2

    MP4 auto-selected

    MP4 is pre-selected as the output format.

  3. 3

    Convert locally

    Your MKV video is converted to MP4 in your browser.

  4. 4

    Download MP4

    Save your MP4 video.

Use Cases

Why convert MKV to MP4?

  • Play MKV files on devices that only support MP4
  • Edit MKV footage in video editors
  • Reduce file size with MP4 compression
FAQ

Frequently Asked Questions

Subtitles are preserved where the format supports it.

Quality depends on the re-encoding settings used.