Crunch42 primarily uses the following web technologies:

PHP is a programming language used primarily on the server, and it makes web pages do interesting things.

JavaScript and jQuery are programming languages primarily used in the browser, and they are also used to make web pages do interesting things.

MySQL is an open-source database, and it’s used to store large amounts of data.

HTML is used to put together web pages.

CSS is used to determine how the web pages look.