SketchUp Version Converter

This tool performs SketchUp SKP version conversion to support cross-release workflows. It targets architects, designers, and engineers who share models across teams using different SketchUp versions. The backend focuses on preserving core data and enabling predictable upgrades or downgrades.
Conceptually, the converter reads the source SKP header, applies a version-mapping rule set, and rewrites the header to reflect the target version while reserializing model blocks. Geometry and topology are preserved where the target version supports them; textures, materials, and embedded assets are carried over when compatible. If a feature is unsupported by the target version, the converter downgrades or flags the data and may substitute placeholders with a resulting compatibility note.
Key differentiators include loss-awareness, optional retention of hierarchy and layers, and a post-conversion compatibility report. Use cases include upgrading legacy projects for cross-team collaboration, migrating large BIM models, and ensuring reliable interchange between design stages without manual re-creation. The tool minimizes local software dependencies and emphasizes deterministic, reproducible results.