WebM Video (.WEBM)
WebM is an open, royalty-free multimedia container format developed by Google, designed specifically for web video delivery. It contains VP8 or VP9 video codecs with Vorbis or Opus audio, and is natively supported by all major web browsers. WebM offers competitive compression efficiency while avoiding patent licensing requirements.
Advantages of WebM Video
What the WEBM format does well, and why you might choose it.
- Royalty-free and open-source with no licensing costs
- Natively supported in all major web browsers for HTML5 video
- Good compression efficiency with VP9 codec rivaling H.264
Limitations of WebM Video
What the WEBMformat doesn't do well, and when to choose another format.
- Limited hardware decoding support compared to H.264/MP4
- Not widely supported by video editing software for source editing
- VP9 encoding is significantly slower than H.264 encoding
What WEBM files are used for
- HTML5 web video delivery as an open alternative to MP4
- YouTube video streaming (VP9 encoded WebM)
- Royalty-free video content where licensing is a concern
Convert to WEBM
The most common formats people convert to WEBM, ready to convert in seconds.
Convert WEBM to other formats
Convert WebM Video files into the format you actually need.
Frequently asked questions about WEBM
What is a .WEBM file?
WebM is an open, royalty-free multimedia container format developed by Google, designed specifically for web video delivery. It contains VP8 or VP9 video codecs with Vorbis or Opus audio, and is natively supported by all major web browsers. WebM offers competitive compression efficiency while avoiding patent licensing requirements.
What is the MIME type of WEBM?
The official MIME type for WEBM files is video/webm. This is the value web servers and applications use to identify the format when transferring files.
What category does WEBM belong to?
WEBM is a Video Converter format. Files in this category share common conversion paths and use cases.
How do I open a .WEBM file?
WEBM files are typically opened by software that natively supports the WebM Videoformat. If you don't have a compatible application, the most reliable approach is to convert the file to a more universal format using the converters listed above. Most WebM Video files convert to widely-supported alternatives in seconds.
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