Well, that's sort of a tricky question. I mean in a word: NO.
However, some of them have tools that may be helpful, like calculators and such. But overall, the only way to succeed at weight loss is by knowing the truth and then doing what the truth commands you to do.
Online weight management programs are just gimmicks.
If you're really interested in losing weight as fast as possible while keeping it off, I explain why and how my weight loss program works in my new weight loss and diet program.