Compress Video Online
Reduce video file size in your browser — free, private, no upload.
or drop files here
Maximum file size: 500MB per file
Browser-native Supported Formats
To keep quality and compatibility stable in browser-side compression, only MP4 and WebM are supported at the moment.
Supported input: MP4, WebM
Supported output: MP4, WebM
Not supported for now: MOV, AVI, MKV, FLV
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About Video Compression
Large videos are hard to share: email caps attachments at 25MB, chat apps and platforms enforce their own limits, and big files take forever to upload. This tool re-encodes your video in your browser with modern codecs, balancing quality and file size. Because everything happens locally, your videos never leave your device. Whether you are preparing bilingual English and French documents, submitting files to CRA and Service Canada, or collaborating cross-border with US teams, this tool keeps your files lean and aligned with Canadian privacy expectations — nothing leaves your device.
How to Compress a Video
Add your video
Select one or more videos from your device. MP4 and WebM compress most reliably; MOV and other formats depend on browser codec support.
Pick a size or quality
Choose a size limit profile like 8MB or 25MB, or enter a custom target — the best bitrate is calculated automatically.
Download the result
Compression runs entirely in your browser. Download the smaller video when processing finishes.
Frequently Asked Questions
Is this video compressor really free?
Yes. There are no limits, queues or sign-ups — compression runs on your own device, so it costs nothing to run.
Are my videos uploaded to a server?
No. All processing happens locally in your browser. Your files never leave your device.
Which video formats can I compress?
MP4 and WebM work best. MOV is supported in most browsers, while AVI, MKV and other formats depend on your system codecs.
How much smaller will my video get?
It depends on the source, but typical videos shrink by 50–90% while staying perfectly watchable when a target size is set.