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FFmpeg OnlionOpen compressor
Video compressor

Make videos smaller, locally.

Compress and resize videos in your browser with familiar FFmpeg controls. Adjust dimensions, quality, and encoding speed without sending files to a server.

Compression controls

Compress for the place your video is going.

Use a smaller export for email and messaging, or keep more quality for editing and archive workflows.

Resize dimensions

Set width and height explicitly, or preserve the source aspect ratio while reducing resolution.

Choose quality

Adjust CRF to decide how much visual quality to trade for a smaller file.

Pick the speed

Use an encoding preset that fits your patience and compression target.

A lighter export in three steps.

1

Load a video

Select a local file and let the browser read its metadata.

2

Set the target

Choose dimensions, quality, preset, and output format.

3

Download the result

Run FFmpeg locally, then save the smaller file.

No upload queue. Processing happens on your device. Large videos still need memory and CPU, so keep the original file until you confirm the export is right.
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