Pesticide for Chrome is a free browser extension designed for web developers and designers to enhance their workflow. It injects Pesticide CSS into web pages, outlining each HTML element, which allows for better visualization of the page structure and spacing. This tool is particularly useful for identifying layout issues, understanding the positioning of components, and improving overall design efficiency.

By using Pesticide, users can quickly debug and fine-tune their CSS rules, making it easier to troubleshoot alignment problems and inspect element nesting. The extension is user-friendly, enabling users to toggle the Pesticide styling on or off in real time. This functionality not only aids experienced developers but also serves as an educational tool for beginners to grasp how CSS affects layout.