React Developer Tools
Developer ToolsInspect React component trees, props and state.
Governed browser automation over your own authenticated session, for AI agents.
Ghostlight lets AI agents work in the Chromium browser you already use -- with your signed-in sessions, visible actions, local control, and optional policy guardrails. Connect Claude Code, Cursor, VS Code, Codex, and other compatible MCP clients to a clearly labeled automation tab group in your real browser. Agents can navigate pages, read content, click, type, fill forms, manage tabs, inspect developer information, and complete multi-step browser tasks while you watch. Ghostlight is local-first. The extension communicates directly with the Ghostlight application installed on your computer. There is no developer-operated service, telemetry, advertising, tracking, or data sale. You remain in control. Run Ghostlight unrestricted or apply local domain and capability policies. Pause automation, take the wheel, or stop it at any time. Requires the local Ghostlight application: https://sylin.org/ghostlight/ Source and documentation: https://github.com/sylin-org/ghostlight
Ghostlight in Browser is free. There is no paid tier to consider.
Inspect React component trees, props and state.
Makes raw JSON responses readable in the browser.
Spoof websites trying to gather information about your web navigation to deliver distinct content you may not want
Generate QR Code from the url of current page, link or selected text. And decode QR Code in image.
Lighthouse is an open-source, automated tool for improving the performance, quality, and correctness of your web apps.
Point-and-click scraper that exports site data to CSV.
Yes, Ghostlight in Browser is free to use.
Ghostlight in Browser is published by sylin.org. 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.