How much can videos be compressed?+
Typical compression ranges from 40-80% depending on the source video. Videos with lots of motion compress less than static content. The 'Balanced' preset works well for most cases.
Is there a file size limit?+
The tool supports videos up to 500 MB. Since processing happens in your browser, larger files depend on your device's available memory. Most modern devices handle this well.
Does compression reduce video quality?+
The High Quality preset preserves nearly identical visual quality while still reducing file size. The Balanced and Smallest presets trade some quality for greater size reduction — choose based on your needs.
What format is the output?+
All compressed videos are output as MP4 with H.264 video and AAC audio. This format is supported by virtually every device, browser, and social media platform.
Is my video uploaded to a server?+
No. Your video is processed entirely in your browser using WebAssembly technology. No data is sent to any server. This is also why the first use requires downloading the compression engine (~30 MB), which is cached for future use.