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Browser fingerprint lab

WebGL

WebGL reports the GPU vendor, renderer and dozens of hardware parameters directly, and renders a small scene for comparison.

Running…
Result
Details
Support
WebGL vendor
WebGL renderer
Unmasked vendor
Unmasked renderer
WebGL version
GLSL version
WebGL 2
Count · Extensions
Pixel hash
WebGL hash
getContextAttributes
WebGPU
What this means

The unmasked renderer usually spells out the GPU model, which is highly distinctive among similar devices. A desktop browser showing SwiftShader or llvmpipe is using software rendering (typical of virtual machines, headless browsers, or hardware acceleration switched off), and websites treat that as suspicious. WebGPU info, when present, is coarser: usually just vendor and architecture.