Video Compressor
Reduce the file size of your videos with an optimized re-encode (H.264, capped at 720p). Uses FFmpeg running directly in your browser via WebAssembly — your video never leaves your device. Perfect for sharing via email, messaging apps, or social media.
Drag & drop a file here
or browse to select
Accepts: MP4, MOV, AVI, WebM, MKV → Compressed MP4
How to convert mp4, mov, avi, webm, mkv to Compressed MP4
Select a file
Drag & drop or click to browse. Accepts MP4, MOV, AVI, WebM, MKV formats.
Convert
Click the convert button. Processing happens instantly in your browser.
Download or Share
Download locally or share via a secure EveryTransfer link in one click.
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Video Compressor — frequently asked questions
How does video compression work here?
FFmpeg re-encodes your video in the browser using H.264 at a fixed compression setting (CRF 28) and scales anything taller than 720p down to 720p. That often cuts file size by 40–70% while keeping the video watchable.
Is my video uploaded while compressing?
No. Everything runs locally via WebAssembly. The video never leaves your device — important for private or client footage.
How long does compression take?
It depends on your device and the video length — roughly real-time to 2× on a modern laptop. A 5-minute clip usually takes a few minutes.
Will the quality be acceptable?
For sharing, messaging, and web use, yes — compression targets visually similar output at a fraction of the size. Keep the original for editing or archival.
Need to share your converted files?
Share with a free link (valid 3 days). Create an account for download stats; passwords on paid plans.
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