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XVID MKV
Free online converter

Convert XVID to MKV

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XVID to MKV converterFREE
Drop a .XVID file here
or pick one - we convert it to .MKV and give you the file to download

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Tested on macOS, Windows & Linux
Last verified Nov 2026

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How to convert XVID to MKV

  1. Add your .XVID file - drop it in the box above or click to browse.
  2. Convert it to .MKV in a few seconds.
  3. Download your new .MKV file.

What to expect

  • A remux keeps the Xvid video bit-for-bit - file size stays the same and quality is identical to the source.
  • Re-encoding to H.264 is lossy; you can shrink the file but cannot improve on the original Xvid quality.
  • If a tool rejects the .xvid extension, rename the file to .avi - the underlying container is the same.

Frequently asked questions

Will converting XVID to MKV lose quality?
Not with a remux - MKVToolNix copies the compressed video stream unchanged. Re-encoding with HandBrake is lossy but lets you trade quality for a smaller file.
How do I add subtitles to the converted MKV?
Open the output .mkv in MKVToolNix and drag in an .srt file to embed it as a soft subtitle track - no re-encoding required.
Why won't my software open the .xvid file?
The .xvid extension is informal; rename the file to .avi and virtually any video tool will open it without issues.
Is MKV better than AVI for storing Xvid video?
Yes - MKV supports multiple audio tracks, chapters, soft subtitles, and per-block checksums, making it a more capable and reliable archive container than AVI.
Learn about the formats: .XVID · .MKV
Programs that convert XVID: Miro Video Converter · HandBrake · ConvertXtoDVD · Freemake Video Converter · ImTOO DPG Converter · MediaCoder · Movavi Video Converter Personal · Sothink Movie DVD Maker