What happens when you convert WebM to MOV
| Inside a typical WebM | VP8, VP9 or AV1 video with Opus or Vorbis audio |
|---|---|
| Copy without re-encoding | Rarely: the codecs are not compatible, so the video is re-encoded |
| When re-encoded | H.264 video with AAC audio |
| Opens in | Apple devices, QuickTime and video editors; Windows plays it in most cases |
Sizes are typical values; your files will vary with content and settings.
WebM WebM Video
WebM is an open, royalty-free container built for the web, usually holding VP8 or VP9 video with Opus or Vorbis audio. Browser screen recorders and many web apps save WebM by default.
WebM converterMOV QuickTime Movie
MOV is Apple's QuickTime container and the format iPhones and many cameras record to. It often holds HEVC or ProRes video, which keeps quality high but files large.
MOV converterHow to use the WebM to MOV Converter
- 1
Choose a WebM file or drop it onto the page.
- 2
Review the video options. The defaults suit most files.
- 3
Click Convert and download your MOV when processing finishes.
Why convert WebM to MOV?
WebM files come from videos saved from websites and from browser-based screen recorders. iPhones, some TVs and many editors play it poorly or not at all. Choose MOV to edit in iMovie or Final Cut, or to keep an Apple-based workflow consistent.
Frequently asked questions
Will the MOV lose quality?
Both formats are lossy, so converting re-encodes the data once more. Using a high quality setting keeps the generational loss very small. Avoid converting the same file back and forth repeatedly.
Does converting WebM to MOV re-encode the video?
Rarely: the codecs are not compatible, so the video is re-encoded. A typical WebM contains VP8, VP9 or AV1 video with Opus or Vorbis audio. Otherwise the result is H.264 with AAC audio.
Questions about privacy, file-size limits or conversion speed are answered in the general FAQ.