Video Compressor
Shrink a video by lowering its resolution and bitrate so it fits email, WhatsApp or upload limits. Output is WebM.
About Video Compressor
This video compressor online helps you reduce video size when a file is too big for email, WhatsApp or a form upload. Drop a video, choose a lower resolution and bitrate, and the estimated output size updates as you change the settings, so you can aim for the limit you need.
Click Compress and keep the tab visible while the video plays through; then compare the before and after sizes and download the WebM file. Lower settings give smaller files with some loss of detail. Your video is processed in your browser and never uploaded, and it is free with no watermark.
How to use Video Compressor
- Drop a video (or try the sample video).
- Choose the resolution and bitrate — the estimated size updates.
- Click Compress and keep the tab visible while it plays through.
- Compare sizes and download the WebM.
Frequently asked questions
How long does it take?
The video is re-encoded in real time, so it takes about as long as the video lasts. Keep the tab visible so the browser keeps drawing frames.
Which settings should I pick?
For phones, 720p at 1–1.5 Mbps looks good. For a quick share, 480p at 0.6–0.8 Mbps gives very small files.
Why is the output WebM?
Browsers can only record WebM (VP8/VP9) with MediaRecorder. WebM plays in Chrome, Android, VLC and most upload forms.
Why is the file sometimes bigger?
If the original was already highly compressed, a higher target bitrate can make it larger. Pick a lower bitrate than the original (shown above the settings).
How do I reduce the size of a video for WhatsApp?
Choose 480p or 720p and a moderate bitrate, check the estimated size, and compress. Share the smaller file as usual.
How do I compress a video for email?
Most email services limit attachments to about 20–25 MB. Lower the resolution and bitrate until the estimate is below that, then compress and attach the result.
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