How much smaller will the video get?

It depends on the original. High-bitrate clips can shrink a lot; already-compressed videos save less.

Some quality is traded for size, but the tool aims to keep the result clearly watchable.

Is my video uploaded?

No. Compression runs in your browser, so your video never leaves your device.

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Video Compressor

Compress video files to reduce file size while maintaining quality.

100% Local

No files ever leave your computer. Everything happens in your browser.

Privacy First

We don't store your files. Your privacy is our top priority.

Lightning Fast

No uploads, no downloads, just instant processing.

?How to use the Video Compressor

Add your video

Drop your MP4 or other video file into the box above.

Compress locally

Your browser re-encodes the video at a smaller size on your device.

Download the smaller video

Save the compressed video and share or upload it easily.

Get under upload limits

Messaging apps and upload forms often cap file size. Compression brings large clips under those limits while keeping them clear enough to watch.

No upload wait, full privacy

Because the work happens on your device, there is no slow upload step and your video stays private.

About the Video Compressor

Video files are large, which makes them hard to email, message or upload within size limits. A video compressor reduces the file size while keeping the footage watchable, which is useful for sharing clips and meeting upload caps. Joy File Convert compresses your video locally using WebAssembly, so even big files never get uploaded.

Frequently Asked Questions

Need to convert hundreds of files?

Get our desktop app for batch processing, larger file support, and offline access.

Get the App

Privacy Guaranteed

All processing is performed locally in your browser. We never see your files. No cloud storage, no data harvest.