Tool for viewing Unity shaders online, with auto-generated links to definitions
https://xibanya.github.io/UnityShaderViewer/ Browse all the shaders and includes that have been added to the database so far
https://xibanya.github.io/UnityShaderViewer/Tools/DynamicViewer.html Search for the definition of built-in functions and variables. (probably the most useful tool in this repository, I use it all the time myself!)
https://xibanya.github.io/UnityShaderViewer/Tools/Paste.html Paste or type in some ShaderLab code and it will be instantly formatted with nice colors and links to definitions
https://xibanya.github.io/UnityShaderViewer/Tools/Viewer.html paste the url of a raw shader file and it'll be parsed with links to definitions added