ACT is Many Tools for Game Asset Creation (Batch Export FBXs/GLTF for Unity/UE/Godot, Origin Aligment Tool, Renaming, UV Tools, Low-Poly Art workflow tools, etc.) for Blender.
Features:Origin Tools
Align Origin To Max/Min/Middle point of object for X, Y or Z axis
Align Origin To 3D Cursor(Separate Axis) or Selection (In Edit Mode)
Renaming Tools
Custom Objects Numbering by Axis/Outliner order
Add/Remove LOD to Name
Add .L or .R suffix to Bones
UV Tools
Batch Renaming UV by Index (example, Lightmap - second uv channel)
Batch Add UV with custom name (copy UV from active, smart projection or lightmap uv)
Batch Remove UV by Index
Set Active UV Layer for Selected Objects in 3D View and Image/UV Editor by UV Index
Batch Assign Seams from UV
Tool for easier Atlas Packing (Scale and Move UV with Steps)
Export Tools
Batch Export Selected Objects for Unity, UE or Godot. Available some modes:
Export All Selected Object into One file
Export Each Object into Individual file
Batch Objects by Parent
Batch Objects by Collection
Material/Texture Tools
Material -> Viewport Colors
Random Material Viewport Colors
Clear Viewport Colors
Clear Vertex Colors
Delete Unused Materials from Objects
Create Palette Texture (from colorful materials. For Low-Poly Art or Cartoon Pipeline)
Open Texture from selelcted material in UV Editor (Object/Edit/UV Editor Mode)
Assign Active Material To Selected Faces (in MultiEdit Mode)
Cleanup Duplicated Materials
Other Tools
Obj Name -> Data Name
Collection Name -> Obj Name
Clear Custom Normals
Flip/Calculate Normals
Select Objects with Negative Scale
Cleanup Empties
Merge Bones (Armature Edit Mode)
Geometry Tools
Dissolve Checker Loops
Collapse Checker Edges
Free download 3d-models for Blender -
link