MP4 to MKV Converter

Convert MP4 files to MKV in seconds. Fast, secure, and completely private. No signups, no fees, no hidden restrictions.

Local processingNo uploadsFree forever
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Why choose VidBee

Fast, private, and reliable MP4 to MKV conversion.

Privacy-first

No uploads or cloud processing. Everything stays on your device.

Batch processing

Convert up to 10 files at once (max 2 GB each). Save time by processing multiple videos in one go.

Professional quality

Get the same high-quality results as professional video tools.

All devices supported

Works in your browser across platforms, so you can convert without installing software.

No installs

Just open the page and convert. No apps or signups required.

Completely free

No signups, no fees, no hidden restrictions. Use it as much as you want, forever.

How it works

Three quick steps to get your mkv.

  1. 1

    Open the converter

    The converter is ready to use immediately. No setup required.

  2. 2

    Select your mp4

    Choose the mp4 file you want to convert to mkv.

  3. 3

    Convert and download

    Generate the mkv instantly and save it to your device.

What is MP4 and MKV

Understanding the formats you're working with.

  • What is MP4

    MP4 is a digital multimedia container format commonly used to store video and audio. It's widely supported across devices and platforms, making it ideal for sharing and streaming video content.

  • What is MKV

    MKV (Matroska) is a flexible video container that can hold multiple audio and subtitle tracks. It's popular for high-quality video and archiving.

MP4 to Other Formats

MP4 -> WEBM MP4 -> MOV MP4 -> AVI MP4 -> M4V MP4 -> 3GP MP4 -> FLV MP4 -> TS MP4 -> GIF MP4 -> MP3 MP4 -> M4A MP4 -> WAV

Other Formats to MKV

WEBM -> MKV MOV -> MKV AVI -> MKV M4V -> MKV 3GP -> MKV FLV -> MKV TS -> MKV

FAQ

Answers to the most common MP4 to MKV questions.

No. Your file stays on your device. The conversion happens entirely in your browser.

Modern desktop browsers like Chrome, Edge, and Firefox work best for the best conversion experience.

Yes, but larger files will take longer and use more memory.

No. Exports are clean and stay watermark-free.

Yes. The web app runs well on iOS Safari and Android Chrome.

The free version supports files up to 2 GB each.

Most videos finish in under a minute, but speed depends on your device.

Need more than MP4 to MKV?

Download VidBee to batch download and manage videos across 1000+ platforms.

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