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

What a WebGL test tells you

WebGL is the browser technology that lets web pages render hardware-accelerated 2D and 3D graphics using your GPU — powering everything from Google Maps and product configurators to browser games and data visualisations. A WebGL test confirms whether your browser can use your graphics hardware and reveals details about it: the GPU vendor and renderer, the WebGL version, and the specific capabilities (maximum texture size, shader precision, supported extensions) available to web apps.

WebGL 1 vs WebGL 2 vs WebGPU

APIBased onStatus
WebGL 1.0OpenGL ES 2.0Universally supported
WebGL 2.0OpenGL ES 3.0Supported in all modern browsers
WebGPUVulkan / Metal / D3D12Newer, rolling out — faster, lower-level

Most sites still rely on WebGL 2 for broad compatibility. WebGPU is the successor, offering better performance and compute capabilities, but WebGL remains the safe baseline everywhere.

Frequently asked questions

What is WebGL used for?

WebGL renders accelerated graphics in the browser without plugins — interactive maps, 3D product views, games, charts, and creative tools all use it to tap into your GPU.

Is WebGL enabled in my browser?

The test above answers this directly. If it shows your GPU renderer and a green result, WebGL is enabled. If it fails, WebGL may be disabled, blocked by your GPU driver, or unavailable in a restricted/incognito context.

Why is my WebGL disabled or not working?

Common causes are outdated graphics drivers, hardware acceleration turned off in browser settings, a blocklisted GPU, or privacy extensions that spoof or block the WebGL context. Updating drivers and enabling hardware acceleration usually fixes it.

What’s the difference between WebGL and WebGPU?

WebGL is the established standard based on OpenGL ES; WebGPU is the newer, lower-level API based on modern graphics stacks (Vulkan, Metal, D3D12). WebGPU is faster and adds GPU compute, but WebGL has wider support today.

Does WebGL reveal my exact GPU?

It exposes the vendor and renderer string (for example, “Apple M2” or “NVIDIA GeForce RTX 3060”), which sites use for compatibility and performance tuning. Some browsers mask this for privacy.