Limited Availability WebGPU

WebGPU subgroups

The subgroups extension for the WebGPU Shading Language (WGSL) enables SIMD parallelism. Using subgroups, threads in a workgroup can efficiently communicate and perform collective operations.

Baseline Status: This feature is currently Limited (not yet Baseline). Latest engine implementation shipped on Jan 21, 2026.

Desktop Browser Engine Support

Google Chrome

144

Supported

Mozilla Firefox

—

Unsupported

Apple Safari

—

Unsupported

Microsoft Edge

144

Supported

Mobile Browser Engine Support

Chrome Android

144

Firefox Android

—

Safari iOS

—

Specifications and References

Specification ↗ Specification ↗ Feature XML ↗

MDN Browser Compat Data Keys:

api.GPUSupportedFeatures.feature_subgroups ↗