Homemoney - HomeMoney: free service for planning of personal budget, family budget, small business budget. Possibility to reduce expenses and budget planning, accounting for small business.
Mint - Free personal finance software to assist you to manage your money, financial planning, and budget planning tools. Achieve your financial goals with Mint.
Fentury - Personal financial advisor, money & budget manager
GnuCash - A personal and small-business financial-accounting software, licensed under GNU/GPL and available for Linux, Windows, Mac OS X, BSD, and Solaris.
Ledger-cli.org - Ledger is a powerful, double-entry accounting system that is accessed from the UNIX command-line.
Money Manager Ex - Money Manager Ex is a free, open-source, cross-platform, easy-to-use personal finance software.