wappalyzer ¶

wappalyzer (8.1k ⭐, privatised) is common tool used to identify frameworks, libraries, and other components along with their versions. It can be installed as a browser extension or used via their website.

If you are using the extension, you might want to uncheck the option to send anonymous data to their website.

🪦 It seems that their tool became more limited for free users after they deleted the open-source repository.