R6 Checkbook is a simple and easy to use checkbook application that follows the double entry accounting method. It provides the ability to also generate transaction reports for each category.
Check Register is a project to allow you to keep track of all your checkbook transactions on your own computer. Check Register is available only for Mac OS X. It has many features that rival larger apps like Quicken, and best of all, it's free software!
cashbook is a general purpose php/mysql balancing application that
makes it easy to balance your checkbook, keep track of
expenses, credit card statements and other home or
small business uses
JBooks is a Java-based personal finance application. The main interface is a checkbook-like view, which allows you to enter and see your transactions. It is based around an SQL relational database, using a double-entry system for all transactions.
PocketWallet is a personal finance and checkbook manager designed for use on handheld Linux systems. It is based on the Qt Embedded library, and is written for the Qtopia (QPE) and Osiris PDA environments.
Phecking is a checkbook system written in PHP. It relies heavily on the xAjax Framework for Ajax functionality and MySQL for datastorage. Features include limitless account management, check reconciling, custom reports, and more.