Tech Stack Checker is a free Chrome extension designed to identify the technology stack of any website with ease. It caters to developers, designers, marketers, and tech enthusiasts by providing quick insights into the frameworks, libraries, content management systems (CMS), and other technologies powering a site. Users can access its features through a simple popup interface, making it convenient to use on any website with just one click.

Among its key features, Tech Stack Checker can detect popular web frameworks like React, Angular, and Vue, as well as identify CMS platforms such as WordPress, Joomla, and Drupal. Additionally, it reveals server technologies and analytics tools in use. The extension is completely free, with no hidden charges or subscriptions, ensuring a privacy-friendly experience without the need for accounts or user tracking.