Are my videos uploaded to a server?
No. Conversion, compression, subtitles, and transcription all run inside your browser using built-in media APIs, so files never leave your device.
Video Compress
About this tool
Video Compress
Compress videos privately in your browser with quality presets, resolution caps, and live size estimates.
Features
- Preset controls.
- Resolution controls.
- Estimate controls.
- Browser media processing controls.
Frequently asked questions
Why does converting take about as long as the video?
The browser re-encodes by playing the video through a capture pipeline in real time. A two-minute clip takes roughly two minutes to process.
Which browsers work best?
Chrome and Edge support every feature, including MP4 output and live transcription. Firefox and Safari support WebM output and the subtitle editor.