World's best free and open source ERP
Free Desktop book-keeping software for small-businesses & freelancers
Free and Open Source Invoicing, Expenses & Time-Tracking
Free & Open Source Invoice App for Freelancers & Small Businesses
Customer-centric e-commerce on a modern stack
A free shopping cart system
Robust, fast, intuitive plain text accounting tool with CLI
A real-time visualisation of the CO2 emissions of electricity
Mechanize is a ruby library that makes automated web interaction easy
Apache CloudStack is an opensource Infrastructure as a Service (IaaS)
Money fields for Django forms and models
Quickly get started with building your next accounting system
SME Accounting package, General Ledger, Debtors, Creditors, Stock
Scraping publicly-accessible Letterboxd data for movie recommendations
Javascript bitcoin library for node.js and browsers
An accounting program (not released) and a released invoice program.
Accounting & Best Practice Business Administration System
Html5 accounting interface
Accounting system for smaller companies written in Open Cobol.
A simple toolset to help students understand basic accounting
Personal and small-business finance manager