The Explore Tool is built into Google Docs, Sheets, and Slides. By default it creates footnotes, so you'll have to arrange them in your Works Cited page yourself.
Within Google Docs, you may add EasyBib as an Add-on!
Purdue Online Writing Lab (OWL)
BibMe (MLA, APA, intrusive ads)
Citation Machine (MLA, APA, intrusive ads)
Instructions for Citing Images using the Explore Tool