Light Tracer – browser-based GPU rendering

Update: Light Tracer, the web-based GPU renderer, now has a standalone windows application. The web version remains free and adds support for the Edge browser in addition to Chrome and Firefox. The windows edition costs $39 and features improved performance and several more features including AI Denoisers, CAD import using STEP and IGES file formats, custom backplates, a scene inspector, and mesh healing. Find out more on the Light Tracer website. 

Light Tracer is developed by Denis Bogolepov and Danila Ulyanov. The original web version of the engine allows the user to upload an OBJ model and have it progressively render in the browser using your PC’s GPU (both discrete and integrated GPUs are supported). You can add mesh lights, HDRI environments, and create two-layer physically-based materials. .