SimpleGrid is described as 'Responsive. Infinite nesting. One class per element. Simple' and is an website in the Development category. There are more than 50 alternatives to SimpleGrid, not only websites but also apps for a variety of platforms, including Self-Hosted solutions, Mac, Windows and Linux. The best alternative is Bootstrap, which is both free and Open Source. Other great sites and apps similar to SimpleGrid are Materialize (Free, Open Source), Foundation (Free, Open Source), Purecss (Free, Open Source) and Tailwind CSS (Free, Open Source).