WebGL

khronos.org

Browser API for GPU-accelerated 2D/3D graphics — foundation for Three.js and WebGPU.

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Software

Overview

WebGL is a low-level 3D graphics API that brings plugin-free 3D graphics directly to web browsers. It is based on OpenGL ES and exposed to JavaScript via the HTML5 Canvas element, making it accessible across all major browsers including Safari, Chrome, Edge, and Firefox.

The API is designed for developers familiar with OpenGL ES 2.0, using GLSL (GL Shading Language) with semantics similar to the underlying OpenGL ES specification. WebGL 1.0 exposes the OpenGL ES 2.0 feature set, while WebGL 2.0 provides access to OpenGL ES 3.0 capabilities.

As an open web standard maintained by the Khronos Group with support from major browser vendors, WebGL enables the development of interactive 3D visualization applications, games, and immersive web experiences without requiring plugins.

Key features

  • Cross-platform web standard
  • Plugin-free 3D graphics
  • Based on OpenGL ES
  • Shader-based API using GLSL
  • Exposed via HTML5 Canvas
  • Royalty-free and open
  • Supported by all major browsers
Pros
  • No plugins required
  • Native browser support across major vendors
  • Familiar to OpenGL ES developers
  • Well-documented with extensive resources
  • Active community and working group
  • Royalty-free standard
Cons
  • Steep learning curve for 3D graphics
  • Lower-level API requires more boilerplate code
  • Performance varies across browsers and devices
  • Limited to JavaScript/web environment
Use this if
You need to build 3D graphics applications for the web without plugins, want to leverage OpenGL ES knowledge in a browser environment, or are developing interactive visualization or gaming experiences.
Skip this if
You need a high-level graphics abstraction, prefer not to work with shader-based APIs, or require features beyond OpenGL ES 3.0 capabilities.

Best for

3D web graphics and visualizationInteractive browser-based 3D applicationsWeb games and immersive experiencesScientific and data visualization on the web

Alternatives

WebGPUThree.jsBabylon.jsCesium.jsPlayCanvas

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