AR.js
Efficient Augmented Reality for the Web
...It supports image tracking, location-based AR, and marker-based interactions—all without requiring native applications or plugins. AR.js was among those great projects, with great technologies, often disruptive ones, that eventually were lacking from documentation and support. We tried to carry on the author's terrific work by maintaining this project, handling new versions, issues, pull requests, the community itself. We continued promoting this project through blogs, Medium articles, socials. And we released new features, like the Location Based AR that was not initially present on AR.js. ...