mojtabanabavi 

Loby is a free, useful and open-source library that includes a set of tools for converting dates, sending emails, paginating, validating, pluralizing words, singularizing words, generating random items, etc.... More information

This project is a free, useful and open-source library that contains some useful services, helpers and extension methods. It's a part of Loby library that focuses on Asp.Net Core framework.