Unity creators search for a free PBR texture generator online that is browser-based so they can unblock environment art without waiting on installs. Open /generate, tune metallic and roughness readability, export, then wire textures into your Lit material.
Low-spec PC friendly
If your machine is not a Threadripper workstation, splitting map synthesis into a browser tab can keep you shipping. GenPBR does not replace Unity’s lighting model, it feeds it cleaner inputs. Pair with roughness map generator and metallic map generator when you want intent-specific bookmarks for your team wiki.
Other engines
Unreal Engine, Blender, Maya, and Roblox each have dedicated hubs with the same underlying generator.