Simpel Financial manager
Web application to track consumptions of supplies such as gas, electricity and fresh water over time.
With plutos you're able to track your income and expenses.
Personal Financial system
Personal finance tools designed to help you track what you're spending, with an emphasis on future financial goals, that it's also a single html file, and can be modified in any supported browser without needing a server
WCash is web-based personal account management script heavily inspired by GNUCash
Yet another budget application
There are lots of "personal finance" and "corporate finance" softwares out there to keep track of what you've done with your money in the past. This one is focused on budgeting, it's about planning the future!