PeekCSS is a Chrome extension designed for web developers and designers to streamline the process of inspecting and copying CSS styles. This lightweight tool enables users to hover over any webpage element to instantly view its computed CSS, eliminating the need to open developer tools. With just a simple hover, developers can quickly access styling information, making it easier to understand how components are styled and to debug layout issues without distraction.

In addition to its hover functionality, PeekCSS allows users to lock the tooltip by pressing Shift, enabling interaction with the styles displayed. Users can also copy the CSS directly from the tooltip with a click, enhancing workflow efficiency. This extension is compatible with all web pages, excluding chrome:// URLs, and is designed to be fast and privacy-respecting, making it a perfect fit for frontend tinkerers seeking a minimalistic solution.