Convert and prepare video

Get a short video update ready for a post or a meeting screen: the right shape, a sensible size, and captions you have checked.

Files you choose are processed on this device. They are not uploaded to UnionOps or to another service.

Save a video as MP4 or WebM, copying the streams when they already fit.

1. Choose files

One MP4, MOV, WebM, or MKV video.

What can change

Converting re-encodes the audio or video, which loses a little quality each time.
Extra audio tracks, chapters, and embedded subtitles may not be kept. You will be told before anything is dropped.

Your original file is not changed. Each result is a new file.

Choose a file this tool can use first.