Compress MKV to 100MB — Free, Online

Shrink any MKV video to 100MB or less in seconds. No signup, no watermark. Perfect for social media, presentations.

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Drop your video here

or click to browse — up to 500MB free

MP4MOVAVIMKVWEBM
video.mp4 Compressing...

Why Compress MKV to 100MB?

MKV is Matroska container popular for high-quality video. At 100MB, you can fit approximately 1m 40s of 1080p video at standard bitrate. This target size is ideal for social media, presentations.

VidCrush uses advanced H.264/H.265/VP9 encoding to shrink your MKV files while preserving visual quality. The process runs entirely in your browser — your files never leave your device until you choose to upload for server-side compression.

Estimated Video Duration at 100MB

ResolutionLow BitrateMedium BitrateHigh Bitrate
480p800s400s267s
720p400s200s133s
1080p200s100s67s
4K53s32s20s

How to Compress MKV to 100MB

  1. Upload your MKV file using the tool above (drag & drop or click to browse)
  2. VidCrush automatically detects the format and applies optimal compression settings
  3. Download your compressed video — guaranteed to be 100MB or smaller

Need a different size? Try compress any video to 100MB or browse all MKV compression options.

FAQ

Yes. VidCrush uses smart 2-pass encoding to hit your target size precisely. The output will be 100MB or slightly smaller.

Some quality reduction is inevitable when shrinking files, but VidCrush optimizes bitrate allocation to minimize visible artifacts. For 100MB, shorter videos retain more quality.

VidCrush outputs H.264 in an MP4 container for maximum compatibility. Your original MKV file can use any codec — we handle the conversion automatically.