Tooly is a free Chrome add-on designed to help users identify and analyze the technology stack used by any website. With its real-time scanning capabilities, Tooly reveals over 100 popular web technologies, including analytics tools, e-commerce platforms, and marketing solutions. The categorized results make it easy to understand the various tools in use, providing a comprehensive view of a site's digital infrastructure.

In addition to technology detection, Tooly offers estimated monthly cost breakdowns for the identified tools, aiding in budgeting and competitive analysis. The user-friendly interface allows anyone—from developers to students—to explore the tech behind their favorite websites effortlessly. Tooly prioritizes user privacy by operating solely within the browser without collecting any data, while regular updates ensure it remains current with the latest web technologies.