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Local processing has no fixed file-size limit and depends on browser memory. Server limits: video 100 MB, other files 10 MB · Up to 5 files per batch
No registration · Free to useWhen to use this tool
WebM is intended for web playback; check codec support in the target browser. M4V is related to MP4; changing containers does not remove DRM protection.
Quality and output
M4V is related to MP4; changing containers does not remove DRM protection. Quality changes depend on the input and output formats. A format change cannot restore information already lost.
How to use
- Upload a valid WEBM file.
- Run the conversion to M4V.
- Download the result and check it before replacing your original.
Before you download
Video conversion selects the first video track and, when present, the first audio track. Extra audio tracks and subtitles are not retained; check the exported picture and sound.