Software editor: GnuCash development team

Official website: https://www.gnucash.org/

GnuCash is personal and small-business financial-accounting software. Designed to be easy to use, yet powerful and flexible, GnuCash allows you to track bank accounts, stocks, income and expenses. As quick and intuitive to use as a checkbook register, it is based on professional accounting principles to ensure balanced books and accurate reports.