Shader Learning is described as 'Interactive browser-based platform for learning GPU programming through practical exercises. It offers over 250 challenges in GLSL and HLSL, allowing users to write and test shaders directly in the browser without any setup' and is an website. There are more than 10 alternatives to Shader Learning, not only websites but also apps for a variety of platforms, including Windows, iPhone, Self-Hosted and Google Chrome apps. The best Shader Learning alternative is LeetCode, which is free. Other great sites and apps similar to Shader Learning are Codewars, SHADERed, Shader Editor and Shadertoy.