Video Compressor
Compress short videos locally to WebM using supported browser media features. Compare size and download.
Native browser video compression · up to 50 MiB, 60 seconds and 1920 × 1080 pixels. Output: lossy WebM (VP8/Opus), at most 1280 × 720. Processing takes about the clip duration; keep this tab visible. Requires captureStream and MediaRecorder support. HDR and surround sound are not preserved.
Files stay on this device. No file upload or saved file history.
Save this page in your browser bookmarks to use it again.
About this tool
Up to 50 MiB, 60 seconds and 1920 × 1080. Lossy WebM output up to 1280 × 720. Requires captureStream and MediaRecorder. Processing takes about the clip duration; keep the tab visible.
How to use
- Choose one supported file.
- Process with this tab visible. Review the WebM preview and compare sizes before downloading.
Example
MP4 → compressed.webm
Frequently asked questions
What are the limits?
Up to 50 MiB, 60 seconds and 1920 × 1080. Lossy WebM output up to 1280 × 720. Requires captureStream and MediaRecorder. Processing takes about the clip duration; keep the tab visible.
Do I need an account?
No. This free tool can be used without creating an account.
Where is my input processed?
This tool processes its input in your browser. Tool input is not uploaded for processing. General site usage statistics are separate; see the privacy policy.