Illustrio is described as 'customizable image library for non-designers, the library that adapts to your own colors, text and data. Illustrio is ideal for your presentations, newsletter and online publishing' and is an website in the Photos & Graphics category. There are more than 10 alternatives to Illustrio, not only websites but also apps for a variety of platforms, including Self-Hosted solutions, Mac, Windows and Linux. The best alternative is Font Awesome, which is both free and Open Source. Other great sites and apps similar to Illustrio are Flaticon (Freemium), Fork Awesome (Free, Open Source), Line Awesome (Free) and Tabler Icons (Free, Open Source).