Tools for Neocities

What is something you like to use to make life easier on Neocities?

For me, I don't like going through several updates just to see that everything is right.

The below link allows you to run code to see how everything will look on a website, and then when you're finished, you can just copy and paste the code over.

https://www.w3schools.com/html/tryit.asp?filename=tryhtml_default