In our previous post we checked free online invoicing tools, wich are hosted on others servers, so you dont have to deal with hosting yourself.

Now, lets check open source invoicing systems, wich you can put on your pc or server. To do this, you either have to have knowledge or you pay someone to do it for you. This is clearly disandvantage, but there are also some good things in this:

• You are in control. It sits on your server. Its your data.
• You never need to trust your invoicing data to anyone else, and you can get it out of the system easily.
• Its Open source – its your code!
• If you dont like something, you can change it :)

BambooInvoce

BambooInvoice is free Open Source invoicing software built with PHP/MySQL intended for small businesses and independent contractors. Number one priorities are ease of use, user-interface, and beautiful code.

BambooInvoice was built by designer and programmer Derek Allard, who uses it everyday, not by a large firm who can’t remember the names of its customers.

It is meant to be sexy, both on top of, and under the hood. View source shows semantic, structured, meaningful XHTML. It has an Ajaxed interface and javascript to keep things functional. The entire application degrades gracefully for users without javascript enabled, and complies with WAI priority two.

Features:

• Add/edit/delete clients & related contacts
• Create invoices, send them via e-mail, generate PDFs or print them
• Define the payments made to the system to follow them
• Reports displays a financial snapshot of the given period

Requirements: PHP5+, MySQL 4.1+, PHP DOM extension enabled

Compatibility: All Major Browsers

Website: http://bambooinvoice.org/

Demo: http://www.bambooinvoice.org/index.php/login

SimpleInvoices

Simple Invoices is a simple open source invoicing systems that you install on your server/pc. It has large, active development team, established codebase (started in 2006) and well-commented source code.

Features:

• Customer managament
• Product managament
• Export to PDF, Microsoft Word, Excel or plain text
• Reports displays a financial snapshot of the given period
• Multiple invoice types
• Invoice templates
• Multilingual

Requirements: PHP 5+, MySQL

Compatibility: All Major Browsers

Website: http://www.simpleinvoices.org

Demo: http://www.simpleinvoices.org/demo

Download: http://www.simpleinvoices.org/start#get

Siwapp

Siwapp is an open source web application meant to help manage & create invoices in a simple, straightforward way. Its built with Symfony, so it uses modern framework.

Features:

• It does only one thing, but does it very well.
• Manage invoices with different serial numbers (as rectification invoices).
• Automatically generate invoices on a periodic basis.
• Meets all your privacy and security requirements, and allows you to backup your data on your computer at any time.
• Invoices can be downloaded as PDF files.

Requirements: PHP 5.2+, MySQL
Website: http://www.siwapp.org/
Backend Demo: http://demo.siwapp.org/
Backend Demo – User-Pass: User: test – Password: test