HtmlSave.com is a website which helps you to save simple and short HTML, CSS, JS codes online and host it online.
HtmlSave.net is the domain where your contents will be hosted and visible. Hosted HTML, CSS, JS will be available in any of the subdomains you have defined or assigned.
The service is very simple and fast. All you need is an account with them to start. Then you can simply paste any HTML codes and submit to save to host the page online.
This service is providing a simple playground for testing with HTML, CSS, JS codes.
All the content you are hosting will be ad-free. That means they don't inject any ad code or any banner for the content you have hosted.
It is really useful for many people who just need to test some codes quickly.