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Convert MKV to AVI

Free online MKV to AVI converter. Fast, secure, no signup required.

12.9K+ files converted

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Accepted: MKV files · Max 100 MB per file

mkv avi

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Need to convert MKV to AVI? MegaConvert makes it easy. Upload your Matroska Video (MKV) file and get a Audio Video Interleave (AVI) file in seconds — no software to install, no signup required. Whether you need this conversion for social media, video editing, device compatibility, web streaming / archival, our online converter handles it instantly. Free for files up to 25MB, with support for larger files up to 2GB.

How to Convert MKV to AVI Online

  1. 1
    Upload your MKV file

    Click the upload area or drag and drop your MKV file. Files up to 25MB are free. Larger files are supported with pay-per-use.

  2. 2
    Choose AVI as output format

    AVI is automatically selected on this page. You can adjust conversion settings if needed.

  3. 3
    Click Convert

    Hit the Convert button to start processing. Your file will be converted using our high-performance servers.

  4. 4
    Download your AVI file

    Once conversion is complete, click Download to save your new AVI file. Free files are available for 1 hour.

Why Convert MKV to AVI?

  • **Reduce file size** — Converting between formats can significantly reduce file size, making files easier to share via email or cloud storage.
  • **Software requirements** — Your software or platform may require AVI format specifically. Converting ensures full compatibility.

MKV vs AVI — Format Comparison

Feature MKV AVI
Full Name Matroska Video Audio Video Interleave
Developer Matroska (Steve Lhomme) Microsoft
First Released 2002 1992
Category Video Video
Extension .mkv .avi
MIME Type video/x-matroska video/x-msvideo

Re-encoding video may reduce quality. Use MKV for lossless container conversion.

About MKV Format

Open container format supporting virtually any video, audio, and subtitle codec.

Full name: Matroska Video

Developer: Matroska (Steve Lhomme) (2002)

About AVI Format

Classic Windows video container format supporting various codecs with large file sizes.

Full name: Audio Video Interleave

Developer: Microsoft (1992)

Frequently Asked Questions

Upload your MKV file to MegaConvert.io, select AVI as the output format, and click Convert. Your converted file will be ready to download in seconds. No software installation required.
Yes! Files up to 25MB can be converted for free, up to 3 times per day. For larger files, pay-per-use pricing starts at just $2 for files up to 100MB.
Absolutely. All uploaded files are encrypted in transit (HTTPS), scanned for viruses, and automatically deleted after conversion. We never share or access your files.
Free users can convert files up to 25MB. Pay-per-use supports files up to 2GB. Subscribers get up to 2GB with priority processing.
Open container format supporting virtually any video, audio, and subtitle codec. Developer: Matroska (Steve Lhomme) (2002).
Classic Windows video container format supporting various codecs with large file sizes. Developer: Microsoft (1992).