ToolToUse

Audio / Video

Video Compressor

Shrink video file size for sharing, email or WhatsApp.

Supported formats: MP4, MOV, WebM, MKV. Best for clips under about 200 MB. Very long or 4K videos may run out of browser memory, especially on phones. Already-compressed phone videos may only shrink a little at “Light”.

MP4 · MOV · WebM · MKV

Video Compressor

Up to 500 MB
Options

Runs FFmpeg inside your browser. Pressing the process button loads about 32 MB of engine files from unpkg, with jsDelivr as a fallback. The engine is reused while this page stays open; later visits may download it again depending on browser caching. These hosts receive ordinary connection information such as your IP address, not your selected file. Internet access is needed when resources are not cached. Large clips may take several minutes. Re-encodes to H.264 MP4 at the chosen quality and optional lower resolution.

Runs FFmpeg inside your browser. Pressing the process button loads about 32 MB of engine files from unpkg, with jsDelivr as a fallback. The engine is reused while this page stays open; later visits may download it again depending on browser caching. These hosts receive ordinary connection information such as your IP address, not your selected file. Internet access is needed when resources are not cached. Large clips may take several minutes. Re-encodes to H.264 MP4 at the chosen quality and optional lower resolution. Best for clips under about 200 MB. Very long or 4K videos may run out of browser memory, especially on phones. Already-compressed phone videos may only shrink a little at “Light”.

Good to know

Frequently asked questions

How do I use it?

Choose your file, adjust the options and press “Compress video”. When it finishes, download the result.

How does it work?

Runs FFmpeg inside your browser. Pressing the process button loads about 32 MB of engine files from unpkg, with jsDelivr as a fallback. The engine is reused while this page stays open; later visits may download it again depending on browser caching. These hosts receive ordinary connection information such as your IP address, not your selected file. Internet access is needed when resources are not cached. Large clips may take several minutes. Re-encodes to H.264 MP4 at the chosen quality and optional lower resolution.

Are there limitations?

Best for clips under about 200 MB. Very long or 4K videos may run out of browser memory, especially on phones. Already-compressed phone videos may only shrink a little at “Light”.

Are my files uploaded?

No. Files are processed on your device and never sent to our servers. No account is needed.

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