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Lightweight overlay for real-time FPS and performance metrics. Perfect for QA engineers and developers. A simple Chrome extension that shows a lightweight overlay with real-time performance metrics. Perfect for QA engineers, developers, and game testers who want to monitor FPS, frame time, memory usage, and other browser performance stats without opening DevTools. UPDATE 04/06/2026: Replaced always-on overlay with a compact FPS badge The full performance overlay is now hidden by default.
rating_count is the Chrome Web Store ratings count, not a written-review count.