Definitions for "Client-side"
An expression indicating an operation performed with the user's browser on the user's computer.
Client-side pertains to programming that is done on YOUR desktop computer.
The server side of a client-server system. On the web, your browser is thought as the client and a web server hosting a web site is thought as the server (hence the name). When you request a document from a web server by entering an URL or clicking on a link, the server sends information to your client (in this case your browser) in the form of text, graphics or audio.