Frameworks
Frameworks are available to create WebGL content quickly and easily without building from the groundup:
Sketchfab is a platform to publish, share, discover, buy and sell 3D, VR and AR content. It provides a viewer based on the WebGL and WebXR technologies that allows users to display 3D models on the web, to be viewed on any mobile browser, desktop browser or Virtual Reality headset.
Three.js is a cross-browser JavaScript library and application programming interface used to create and display animated 3D computer graphics in a web browser using WebGL. The source code is hosted in a repository on GitHub.
Babylon.js is a real time 3D engine using a JavaScript library for displaying 3D graphics in a web browser via HTML5. The source code is available on GitHub and distributed under the Apache License 2.0.
Clara.io is a web-based freemium 3D computer graphics software developed by Exocortex, a Canadian software company. Clara.io was announced in July 2013 and first presented as part of the official SIGGRAPH 2013 program later that month.
A-Frame is an open-source web framework for building virtual reality experiences. It is maintained by developers from Supermedium and Google. A-Frame is an entity component system framework for Three.js where developers can create 3D and WebVR scenes using HTML.
PlayCanvas is an open-source 3D game engine/interactive 3D application engine alongside a proprietary cloud-hosted creation platform that allows for simultaneous editing from multiple computers via a browser-based interface. It runs in modern browsers that support WebGL.
JanusWeb: Easily connect to the metaverse from within a normal 2D browser. Whether on a desktop computer, phone or tablet, JanusWeb runs on most modern web browsers and allows you to explore, chat and play across devices.
LayaBox, also named Laya, is a freeware framework which include cross-platform game engine targeting apps and HTML5 web browsers, as well as online publishing and digital distribution services.
Away3D is an open-source platform for developing interactive 3D graphics for video games and applications, in Adobe Flash or HTML5. The platform consists of a 3D world editor, a 3D graphics engine, a 3D physics engine and a compressed 3D model file format.
CopperLicht is an open-source JavaScript library for creating games and interactive 3D applications using WebGL, developed by Ambiera. The aim of the library is to provide an API for making it easier developing 3D content for the web.
Verge3D is a real-time renderer and a toolkit used for creating interactive 3D experiences running on websites.