WebM

WebM is a web-oriented media container commonly carrying VP8 or VP9 video.

Practical considerations

MP4 conversion improves compatibility in some apps and devices but normally requires lossy re-encoding.

Available tools

• WebM to MP4 — Turn web video into compatible MP4.
• Compress video — Reduce resolution and file size for easier sharing.

Supported types and limits are specific to each tool. A familiar file extension does not guarantee that a malformed or protected file can be converted.