Which tool is NOT typically used for keyword research?

Photoshop is primarily a graphic design software and is not intended for keyword research. It is used for creating and editing images, rather than analyzing or finding keywords that can improve a website's search engine optimization (SEO). On the other hand, tools like Google Keyword Planner, Ahrefs, and SEMrush are specifically designed for keyword research, helping marketers and SEO professionals identify relevant keywords, analyze search volumes, and gauge competition. These platforms provide insights that are critical for developing effective content strategies aimed at enhancing online visibility. Thus, Photoshop does not fit within the category of tools typically used for keyword research.