Hopefully you are not looking for a free design program. If so you'll end up with ads that you might not want on your web pages.
All design programs have a learning curve, some harder than others. Take a look at Web Studio
I've used it for years and they have a great forum board. They do have a trial version which is the same as the full version.
I have no connection to them other than using the program for many years as a professional designer.