06 04 17
As of Safari Technology Preview Release 26, and WebKit Nightly Build, a WebGPU prototype is available for you to experiment with on macOS.
To enable WebGPU, first make sure the Develop menu is visible using Safari → Preferences → Advanced → Show Develop menu in menu bar. Then, in the Develop menu, make sure Experimental Features → WebGPU is checked. More details and demos here