Bamboo Invoice is free, simple and elegant open source invoicing web application for small businesses, independent contractors and freelancers. Bamboo Invoice was built by designer and programmer Derek Allard with PHP, MySQL, AJAX and Javascripts. The user interface is very ease of use with semantic CSS/XHTML coding. You can add/edit/delete clients and related contacts; create invoices for clients and send them via e-mail, generate PDFs or print them out. Bamboo Invoice software is hosted on you server and full control the data by yourself. BambooInvoice is internationalized with various worldwide languages. BambooInvoice is released under the GPL.

• http://www.bambooinvoice.org/