Compress Video
Compress and convert MP4, WebM and MOV in your browser. Powered by ffmpeg. Nothing is uploaded.
Drop your video hereor click to browse: MP4, WebM or MOV
How to compress a video
- 01Add your videoSelect or drag an MP4, WebM or MOV file into the box.
- 02Set the level and formatChoose the compression strength and the output format.
- 03DownloadSave the smaller video. All processing happens locally in your browser.
FAQ
Are my files uploaded?
No. Compression runs in your browser via ffmpeg.wasm. Your video never leaves your device.
How do I reduce the size of an MP4 video?
Load the video, pick a compression level and output format, and download. Everything is processed on your device.
How do I convert a video to MP4?
Pick MP4 as the output format: the tool converts and compresses at the same time, using the ffmpeg engine.
Why does the first run take a moment?
The ffmpeg engine (about 30 MB) loads once on first use, then stays cached for the session.
Which formats are supported?
Input and output cover the common web formats: MP4 (H.264), WebM and MOV.
Is it free?
Yes. No signup, no limits, no watermark.
