Compress your videos right in your browser — fast, free, and completely private.
Video Size Compressor
Shrink MP4, WebM & MOV files — free, no signup, works on mobile
Compressing… keep this tab open
Free Online Video Size Compressor
Our free video size compressor shrinks large video files so they’re easier to share, upload, and store — no software to install. It supports popular formats including MP4, WebM, and MOV, and works on your phone, tablet, or computer.
100% Private — Your Videos Never Leave Your Device
Unlike most online compressors, this tool processes your video entirely inside your browser. Nothing is uploaded to any server, so your files stay completely private and compression stays fast even on slow connections.
Frequently Asked Questions
Is the video compressor really free?
Yes — it’s completely free with no sign-up, no watermarks, and no limits.
Are my videos uploaded anywhere?
No. Compression happens 100% in your browser, so your videos never leave your device.
Which video formats are supported?
MP4, WebM, and MOV files are supported.
Does it work on mobile?
Yes — the compressor works in modern mobile browsers on Android and iOS, as well as on desktop.