PluginSmith – Multi-Engine Plugin Builder (4.27 and 5.1 – 5.6)

PluginSmith is an Unreal Engine Editor plugin that automates building, validating, and packaging plugins and projects across multiple engine versions (4.27 → 5.6). It integrates with Unreal’s IPluginManager and Unreal Automation Tool (UAT) to produce Fab Marketplace–compliant ZIP packages, complete with validation, logging, and engine-specific compilation. It supports both Blueprint and C++ automation APIs, enabling command-line and in-editor packaging flows..

• Automatically builds and packages Unreal Engine plugins for multiple engine versions (4.27 → 5.6).
• Validates .uplugin metadata, version compatibility, platform lists, and documentation presence before packaging.
• Generates ready-to-upload Fab ZIP archives with correct folder and naming structure.
• Creates detailed log files for every build process in Saved/Logs/PluginSmith.log.
• Supports both Editor and command-line usage for automation pipelines.
• Cleans intermediate folders and removes non-distributable binaries before packaging.
• Blueprint and C++ APIs for fully automated builds or custom pipelines.