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M4V to MKV Converter

Convert M4V video to MKV locally in your browser with quality, resolution and frame-rate controls.

Drop M4V videos hereUp to 10 files · 500 MB each · processed locally
No upload

AVAILABLE CONVERTERS

About M4V and MKV

Learn about the source and output formats used in this M4V to MKV conversion.

SOURCE FORMAT

M4V

M4V is an MPEG-4-based video container closely related to MP4 and often used by Apple software.

Open M4V Converter
OUTPUT FORMAT

MKV

MKV is a flexible open container that can hold multiple video, audio and subtitle tracks.

Open MKV Converter
InputM4V
OutputMKV
Best forvideo editing and publishing

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About this tool

About M4V to MKV

Use M4V to MKV to change a M4V video into MKV without installing desktop software. Add the source video above, adjust the available quality, resolution and frame-rate controls, then download the converted file.

Online m4v to mkv conversion

The converter decodes the source and creates a new MKV file for compatible browsers and applications. Output size and processing time depend on duration, resolution, source codec and quality settings.

Local browser processing

Supported conversion runs on your device through the browser-based media engine. Keep the original video and check picture, sound and duration in the downloaded result before replacing an important source file.

Three simple steps

How it works

  1. 1
    Choose

    Add a supported file or paste your content.

  2. 2
    Process

    The tool works locally in your browser when supported.

  3. 3
    Download

    Save the result directly to your device.

Frequently asked questions

M4V to MKV FAQ

How do I convert M4V to MKV?

Choose a supported M4V video, review the quality, resolution and frame-rate settings, start conversion and download the MKV result.

Are my files uploaded?

No. Supported video conversion runs locally in your browser, so the source file is not uploaded to zer.ai.

Will conversion change video quality?

Transcoding creates a new encoded file. Choose high quality when visual fidelity matters, or a smaller setting when output size is more important.