What Is My Screen Resolution

WebGL Test

Detect WebGL1/WebGL2, renderer, extensions, shader compile, and run a quick rendering test.
Summary
Running WebGL checks…
This performs feature detection and a small rendering smoke test.
WebGL supported
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Context
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Renderer (UNMASKED)
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Vendor (UNMASKED)
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Shading language
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Max texture size
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Antialias
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Supported extensions (top)
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Shader compile & link
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Program linked
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Rendering smoke test (readPixels)
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FPS (short)
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Canvas above runs a simple rotating triangle if WebGL is available.
More / Notes
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What Is WebGL?

WebGL (Web Graphics Library) is a browser-based graphics technology that allows websites to render 2D and 3D graphics using your device’s GPU. It works directly inside the browser without plugins, powering advanced visuals, animations, and interactive content.

WebGL has two main versions:

  • WebGL 1.0 — Based on OpenGL ES 2.0
  • WebGL 2.0 — Based on OpenGL ES 3.0 with better performance and features

Support varies depending on your browser, GPU, graphics drivers, and system configuration.

Why WebGL Matters

WebGL is essential for many modern web experiences, including:

  • 3D maps and visualizations
  • Browser-based games
  • AR (augmented reality) effects
  • Video filters and shaders
  • Physics simulations
  • 3D model viewers and product previews

If WebGL is unsupported or disabled, many interactive websites may not function properly.

What a WebGL Test Shows

Our WebGL test tool can detect:

  • Whether WebGL 1 is supported
  • Whether WebGL 2 is supported
  • Your GPU vendor and renderer
  • Graphics capabilities and limits
  • Maximum texture size
  • Supported WebGL extensions
  • GLSL shader version

Why Check “What Is My WebGL?”

Checking your WebGL support helps you:

  • Diagnose GPU or browser issues
  • Verify if WebGL is enabled
  • Test compatibility for games and 3D tools
  • Troubleshoot performance or rendering problems
  • Ensure the latest graphics drivers are working
  • Check support before using WebGL-based apps