Checking WebGPU Availability in Modern Browsers

WebGPU Availability Detection

WebGPU is the successor to WebGL, providing modern, low-level GPU access inspired by Vulkan, Metal, and Direct3D 12. It offers better performance, compute shaders, and a more predictable programming model.

Basic Detection

async function hasWebGPU() {
  if (!navigator.gpu) return false;
  try {
    const adapter = await navigator.gpu.requestAdapter();
    return adapter !== null;
  } catch (e) {
    return false;
  }
}

Feature Detection

WebGPU adapters expose feature limits that vary by hardware:

async function getGPUFeatures() {
  const adapter = await navigator.gpu.requestAdapter();
  if (!adapter) return null;
  return {
    features: [...adapter.features],
    limits: adapter.limits,
  };
}

Key Differences from WebGL

Aspect	WebGL	WebGPU
API style	OpenGL ES state machine	Modern explicit API
Compute shaders	No	Yes
Multi-threaded	No	Yes (via workers)
Shader language	GLSL	WGSL
Error handling	Silent failures	Validation layer

Browser Support Status

As of 2025, WebGPU is available in Chrome, Edge, and behind flags in Firefox and Safari. Always implement a WebGL fallback for broader compatibility.