GnuCash

GnuCash is a financial-accounting software designed for personal and small-business use. It has been licensed under the GNU GPL and is available for various operating systems such as GNU/Linux, BSD, Solaris, Mac OS X and Microsoft Windows. Its features include the ability to track bank accounts, stocks, income and expenses. It operates like a traditional checkbook register, but follows professional accounting principles to ensure accurate and balanced books. The software also offers various features such as double-entry accounting, management of stock, bond, and mutual fund accounts, small-business accounting, detailed reports and graphs, and the ability to import transactions from various formats such as QIF, OFX, and HBCI. It also allows for scheduled transactions and offers financial calculations.