Canva: an online graphic design tool that can help you create various items like presentations, graphics, posters, and so much more.  Sign up with your .edu email for an education account to get access to even more templates, backgrounds, graphics, etc.

Venngage: an online design tool filled with thousands of professional templates that are fully customizable with no design experience. The drag-and-drop editor comes with accessibility features included.

HubSpot/PowerPoint: the HubSpot blog has several articles about designing infographics, and HubSpot offers free templates that can be downloaded and used in PowerPoint to create high-quality professional infographics in under an "hour."

TableauPublic: a free platform to explore, create, and publicly share data visualizations online, the software allows you to connect to a spreadsheet or file and create interactive data visualizations for the web (web-based infographics).