When I download a zip file through Safari it automatically extracts it into a new folder named as the ZIP file is. Is there a way to disable the auto extract feature and just leave the file as is in ZIP format?
In Safari go to Preferences -> General and uncheck Open "safe" files after downloading. This disables automatic extracting of archives, including zip files. As noted below the check box this will disable automatic opening of PDFs, text documents, movies and pictures.