A cite generator takes the information from the resource and automatically creates a citation for you.
Most databases provide citation generators. Look for a button to create citations for you, choose the style manual you are using, then copy and paste the citation into your References list.
You are responsible for the accuracy of the citation, not the citation generator.
Be sure the generator is using the latest edition of your style manual and check for missing data, incorrect punctuation, and other errors before submitting your paper.
There are several free programs that will help you manage your bibliographic resources and create citations.