Identify technology on websites

Wappalyzer is a cross-platform utility that uncovers the technologies used on websites. It detects content management systems, ecommerce platforms, web frameworks, server software, analytics tools and many more.

About Wappalyzer

Wappalyzer is an open-source, platform independent utility capable of identifying 1,270 different web technologies. It was created by Elbert Alias in 2009, has received contributions from hundreds of developers worldwide and enjoys an active user base of a million people.


Wappalyzer fingerprints software using unique patterns found in website source code, response headers, script variables and several other methods.

Wappalyzer is written in JavaScript and can be used on any operating system natively using Node.js. It can be run as a stand-alone application or included as a module in a larger application.


Wappalyzer collects data anonymously and organically through the browser extensions. This information is processed and made available through APIs and datasets, providing valuable insights into the software industry.