react-docgen is a CLI and library that extracts structured information from React component files for documentation generation.
The tool solves the problem of automatically documenting React components by parsing component source code and extracting metadata such as props, types, and descriptions in a machine-readable format. This extracted information can then be fed into documentation generators to produce component documentation without manual duplication of information. The approach works as both a standalone library that can be integrated into custom tooling and as a command-line interface for direct use in build pipelines.
Developers should choose react-docgen when building documentation systems for React component libraries or design systems where keeping documentation synchronized with component code is important. It suits projects that want to avoid manually maintaining prop documentation and instead derive it automatically from source. The tool is highly customizable, allowing teams to adapt the extraction and output format to their specific documentation needs.
The project maintains active development with regular updates to support evolving React patterns and tooling. The codebase is organized as a monorepo with separate packages for the core library and CLI wrapper, allowing independent versioning and use cases. Documentation is versioned alongside releases, with major versions maintaining their own documentation branches. The project acknowledges ongoing work around TypeScript support, indicating awareness of gaps in handling modern component patterns.
