You Need a Budget, or YNAB, is an online budgeting tool. It is probably the best budgeting software out there. I've been using it for years and it has transformed the way I spend and save money. It costs $84 a year currently for new customers, but the price is worth it because you will probably save at least that much once you learn how to use YNAB. You get a free 34 day trial when you sign up so you can decide if you like it or not. YNAB recently got an overhaul which is supposed to make it easier for newcomers to learn the software. I recommend exploring the website before starting the trial so you can learn about all of the features of YNAB.
YNAB. Personal Budgeting Software for Windows, Mac, iOS and Android
YNAB. Personal Budgeting Software for Windows, Mac, iOS and Android