Hello
if anyone wants to learn C# for free, here is the complete online course.
https://qawithexperts.com/tutorial/c-sharp

Also, don't forget to check online tools
Free online DNS check tool
Free Email verify online
RGB to Hex Converter
Online URL encoder
Thanks

You can take a look on best web-development courses available on Udemy for sale

https://qawithexperts.com/article/technology/best-web-development-courses-available-on-udemy-to-learn/124

Also best ASP.NET course is here

https://qawithexperts.com/article/technology/best-aspnet-web-development-courses-available-online/128

and top programming languages to learn in 2018/2019

https://qawithexperts.com/article/technology/top-programming-languages-to-learn-2018-e-books-link-include/106

That should help.