How to use the Video Compressor
- 1
Drop the video you want to compress.
- 2
Pick a quality level and optionally lower the resolution.
- 3
Press Compress and download the smaller MP4.
Features
- Quality presets
- Balance file size and visual quality with CRF-based encoding.
- Downscale
- Reduce resolution to 1080p, 720p or 480p for big savings.
- Remove audio
- Strip the audio track for silent clips.
- Size comparison
- See the original and compressed sizes side by side.
Frequently asked questions
How much smaller will my video be?
It depends on the source. Phone videos often shrink 50–80% at the Balanced setting, and more if you lower the resolution.
Which output format is used?
Compressed videos are saved as MP4 with H.264 video and AAC audio, which plays virtually everywhere.
Are my videos uploaded to a server?
No. All processing happens locally in your browser using JavaScript and WebAssembly. Your videos never leave your device, and nothing is stored or logged.