VID
MP4Shrink video file size while keeping quality. Compression can take several minutes.
Compress Video shrinks MP4, MOV, MKV, WebM or AVI files by re-encoding them, always delivering an MP4 result. Reduction varies by source: an already-compressed video shrinks less than an uncompressed one. Files up to 100MB; large videos can take several minutes.
Drop your video here
Upload filesSize up to 100 MB
Drop your video into the box above. MP4, MOV, MKV, WebM and AVI are all accepted, up to 100MB.
Click Compress. Your video uploads over an encrypted connection and is re-encoded; larger files can take several minutes.
Click Download compressed MP4 once it's ready. The result is always delivered as MP4, regardless of the format you uploaded.
It depends heavily on the source: a video that's never been compressed can shrink substantially, while one that's already highly compressed may only shrink a little further. There's no fixed target size; the tool balances file size against keeping the video watchable.
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Compression is lossy by nature, so some quality is traded for a smaller file. At typical viewing sizes the difference is usually minor; keep your original file if you need a pristine master for future edits.
MP4 with H.264 is the most broadly compatible combination across browsers, phones and social platforms, so the compressed result is standardized on MP4 even if you uploaded a MOV, MKV, WebM or AVI file.
Last updated: July 8, 2026