Free Tool

IFC Model Diff

Compare two IFC versions entirely in your browser. See added, removed and modified elements — with optional 3D visualisation.

Clash DetectionApproval WorkflowLink to RFI / NCR

Base version

Drop base IFC file

Head version

Drop head IFC file

About this tool

Compare two IFC model versions to find every added, removed, and modified element. The diff uses GlobalId — the unique identifier every IFC element carries — so renaming or moving elements in a file does not create false positives.

Key features

  • GlobalId-based element matching — no false positives
  • Detects added, removed, and modified elements
  • 3D visualisation with colour-coded diff highlights
  • Sortable and filterable change list
  • Export to CSV for Excel or project tools
  • Supports IFC2x3 and IFC4 — no file upload
Also free:IFC Viewer·IFC Excel Export·BCF Viewer·Drawing Compare

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