imgui-node-editor is a node editor widget built using Dear ImGui.
The tool solves the problem of building node-based visual editors by providing an ImGui-compatible API that handles the interaction layer while leaving content rendering to the user. It manages node placement, dragging, zooming, scrolling, and selection internally, while allowing full customization of node and pin appearance. The editor operates on the principle of "draw your content, we do the rest," separating interaction logic from presentation.
The tool suits projects that need blueprint-style editors or other node-based interfaces within an ImGui application. It works well for game development tools and engine editors where visual node graphs are required. The project is designed as a foundation for more complex solutions rather than a complete out-of-the-box editor, making it appropriate for developers comfortable with ImGui's immediate-mode paradigm and willing to implement their own node content rendering. It requires only vanilla ImGui and C++14, with no heavy external dependencies, making integration straightforward through copy-paste of source files into existing projects.
Development activity shows consistent engagement with the codebase through regular refinements and structural improvements. The project has undergone recent restructuring to align with ImGui's layout conventions, indicating active maintenance and evolution. The maintainer actively addresses issues and questions from users, maintaining responsiveness to the community. Documentation includes working examples demonstrating basic usage patterns, supporting developers who want to understand the API before committing to adoption.
