Shrink a phone video or screen recording so it fits in an email, a chat or an upload form. The video is re-encoded on your own device and nothing is uploaded.
Your file never leaves your device. Processed locally in your browser. Nothing is uploaded.
480p gives the smallest files and is fine for phones and chats. 720p is the best balance for most uses. The 1080p preset keeps full HD and only compresses lightly.
Browsers run the encoder in a single thread on your CPU, so expect roughly real-time speed or slower. A 1-minute clip can take a minute or more on a laptop, longer on older phones. Keep the tab open until it finishes.
It depends on the source. Phone videos recorded in 4K or 1080p often shrink a lot at 720p; videos that are already compressed may change little.
Up to 30 minutes per video, because longer encodes in a browser tab are impractically slow.