Tocronx 

Simple library with helpful classes/functions that make it easier to work with tasks and async/await. (SequentialTaskRunner, CancelableTaskRunner, AsyncLock, ...)

Simple expression/formula parser. Allows the conversion of formulas in infix notation to postfix notation. Calculates formulas in postfix notation using resolver classes for variables and functions.

Library to simplify the usage of Entity Framework Core. Especially for small applications and examples/demos.

Simple html element library.