BAsset Tools is an export pipeline designed to transfer object arrangements from Blender to Unity using a custom JSON-based format. It allows users to export Geometry Nodes setups, linked duplicates, and instanced objects without applying modifiers or baking them into a single mesh. The tool records instance names and their specific transforms in Blender, which the companion Unity importer uses to locate matching assets and reconstruct the exact layout within a ready-to-use Unity prefab.

Beyond instance mapping, the toolset includes bulk export capabilities for FBX files, materials, and textures. It handles automatic coordinate system conversion to match Unity's Y-up orientation and transfers object names along with parent-child hierarchies. Additional features include the ability to organize exports into subfolders, export based on active collections, and automatically generate prefab copies from imported FBX assets to allow for component additions in Unity.