Object Replacer is a Blender addon that streamlines the process of swapping GLB-imported objects with high-quality assets from your DCC library. Instead of manually repositioning and rotating each replacement, the addon automatically aligns every asset to match the original object's facing direction, scale, and ground anchor — saving hours of tedious work on large scenes.

Key features:

• Keyword-based matching rules that map GLB object names to library assets automatically
• Smart forward-axis detection using face normals or PCA for complex geometry
• Height-matched scaling so replacements fit the original footprint
• Batch replacement with a single click — replace all matched objects at once
• Instance support for memory-efficient scenes with repeated assets
• Post-replace fixes: flip upside-down, flip facing, and clean duplicate-number suffixes
• CSV import/export for saving and reusing keyword rule presets across projects
• Non-destructive workflow — originals are archived to a hidden collection, not deleted
• One-click Finalize to re-parent replaced objects and clean up the scene

Ideal for architecture, urban, and environment pipelines where GLB exports from GIS or BIM tools need to be replaced with production-ready library assets.