Devsy

Devsy is a professional browser extension built specifically for web developers who need faster inspection, testing, and debugging workflows directly inside the browser. It combines essential development utilities into a single lightweight toolkit designed to improve productivity during frontend development, UI debugging, responsive testing, and website analysis. Devsy provides advanced tools for responsive viewport testing, layout inspection, box model analysis, spacing validation, overflow detection, and visual debugging. Developers can inspect fonts, colors, and page structure in real time while quickly identifying frameworks, libraries, and technologies used on any website. The extension also includes practical workflow utilities such as full-page screenshot capture, asset extraction, image conversion, storage management, text utilities, and smart form filling for rapid testing. Built for modern development workflows, Devsy helps reduce context switching by bringing commonly used inspection and debugging tools into one streamlined browser experience. Designed with performance and privacy in mind, Devsy runs entirely locally without tracking, analytics, or external data processing.