Wappalyzer
Developer ToolsIdentifies the technology stack behind any website.
Inspect React component trees, props and state.
React Developer Tools adds Components and Profiler panels to Chrome DevTools so you can inspect the component hierarchy, edit props and state live and record render performance.
React developers debugging component state and render performance.
React Developer Tools is free. There is no paid tier to consider.
Identifies the technology stack behind any website.
Makes raw JSON responses readable in the browser.
Yes, React Developer Tools is free to use.
React Developer Tools is published by Meta. As with any extension, review the permissions it requests before installing and remove it if you stop using it.
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Side-by-side feature tables, pricing and a clear recommendation.