What it does
React is a popular toolkit for building websites. React Doctor scans a React project and reports problems with how it handles data, speed, structure, security, accessibility and maintainability.
The checks follow fixed rules, so they give the same results each time. You can install it as a skill for coding agents such as Claude Code, Cursor and Codex, so they can find and fix these issues themselves.
It can also run on every proposed code change and record performance traces from a running app. It collects anonymous usage data unless you turn that off.
Who it's for
Web developers who build React apps, especially with help from AI coding agents.
Can I use it without coding?
Developers only. Run with a single command in a project folder; aimed at programmers. New to this? Start here.
Can I run it?
- Cost
- FreeNothing to pay or sign up for.
- Computer
- An ordinary computer is fine
- Privacy
- Runs on your own device: your data stays with you
- API key
- Not needed
Try it
- Run the React Doctor scan from the main folder of your React project.
- Optionally install its skill so your AI coding agent can fix the issues it finds.
Using Claude Code, Cursor or another AI coding assistant? Paste the prompt and it will walk you through the setup.New to this?
Before you install
- Only download from the official GitHub page. Copies with similar names exist for many popular projects.
- No standard license listed. Check the GitHub page before using it for business.
- More on staying safe