Media Source Extensions
50 websites

Media Source Extensions is free to use

https://www.w3.org/Icons/w3c_home

Media Source Extensions (MSE) is a W3C specification that allows JavaScript to send byte streams to media codecs within web browsers that support HTML5 video. Among other possible uses, this allows the implementation of client-side prefetch...

VS

OSM Player
205 websites

OSM Player is free to use

http://mediafront.org/osmplayer

he Open Standard Media Player is an all-in-one media player for the web. It is an industry changing, open source (MIT) media player that is built to dynamically deliver any type of web media, including HTML5, YouTube, Vimeo, Limelight CDN, ...

Market Share by Top Websites

1 OSM Player is leading in Top 1M Sites.

2 In terms of market share, Media Source Extensions is clearly lagging behind, losing to OSM Player in all segments.

Websites Categories

1 OSM Player has better usage coverage in more websites categories. Including Science & Education, Community & Society, Arts & Entertainment, Health and 11 other categories.

2 Media Source Extensions is leading in Computers Electronics & Technology, Jobs & Career, Lifestyle and Finance.

Geography

1 OSM Player is leading in most countries, including United States, Italy, France, Canada and 32 other countries.

2 Media Source Extensions is leading in China, South Korea, Hong Kong, Philippines and 5 other countries.