Window Size Overlay

Window Size Overlay is a simple yet powerful tool for web developers and designers. Instantly see your browser window size — no need to open DevTools or use clunky inspector tools. Just glance at the corner of your screen to view: - the current window size (viewport or full window), - the device pixel ratio (@DPR), - and the exact overlay position (freely configurable). ✨ Why you’ll love it: ✅ perfect for responsive design testing ✅ live window size overlay – always visible ✅ customizable position, size and behavior ✅ lightweight, fast and privacy-safe Works seamlessly in the background and updates in real time.