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Compression uses H.264 output. A 5-minute 1080p video can go from 200 MB to ~50 MB with moderate settings, without perceptible loss to the naked eye. Resolution does not change.
Free, no account required, browser processing and no server upload.
Drop a file — Compress video
Drag and drop your file here · Choose a file from your device
Max 100 Mo
Compression uses H.264 output. A 5-minute 1080p video can go from 200 MB to ~50 MB with moderate settings, without perceptible loss to the naked eye. Resolution does not change.
Trade-offs
Low (CRF 28)
50-70%
Visible artifacts in dark scenes
Medium (CRF 23)
30-50%
Good balance for the web
High (CRF 18)
10-25%
Near lossless, heavy file
Processing is 100% local, so it takes longer on modest devices. Expect 1 to 3 minutes for 5 minutes of video. A 20-minute 4K video may take 15 minutes or more.
Compress video helps you complete this task directly in your browser. You keep control of your data and get the result locally.
Yes. Compress video is free to use and runs in your browser without sending files or content to Lmaotools servers for processing or storage.
No. Files and content added to the tools are processed in your browser. They are not sent to Lmaotools servers for conversion or storage.
No. Open the tool, add your file or content, then get the result. Processing happens locally in your browser.