Precurio is a free and open source intranet portal software that gives your organisation a one point access to information and also helps streamline your business processes/workflow, while improving communication and collaboration amongst employees.

The Meeting Room Booking System (MRBS) is a PHP/MySQL-based Web application for booking meeting rooms. It uses 'areas' to group rooms, and rooms within each area are shown side-by-side.

Open source customer care and billing software that can be used in many different service industries, including internet service, subscriptions, consulting, and telecommunications.

• Provides CRM, Ticketing, Invoicing, and Credit Card Batches
• No Limits on your number of Users or Customers
• No Limits to your Service Types and Attributes
• Securely store card data with industry standard OpenPGP
• Avoid Cloud Data and Payment Processor Lock-In

A web-based project management tool for workgroups. Encourage groups and individuals to work collaboratively. This tool aims to be functional and elegant without being complicated or graphically intensive. The software is ideally suited to tracking multiple projects and innumerable small tasks across an organisation of any size. If you have reminder notes stuck all over your desk, then you need WebCollab!

Highly customizable project management environment, capable of simultaneously managing several projects. It is a Web-based project management and collaboration support system based on JCorporate Expresso framework.

Redmine is a flexible project management web application. Written using Ruby on Rails framework, it is cross-platform and cross-database.

Redmine is open source and released under the terms of the GNU General Public License v2 (GPL).

Track issues for your next project and colaborate with your team on solving them, also list priorities on what need to be done and get the job done in less time.

The application is fully Ajaxed, tasks can be re-ordered with drag'n drops and keyboard shortcuts are supported which all make the usage faster.

It is possible to create tasks with due dates (or not) and PlanCake can display your to-do-list inside a calendar. Or, you can reach them from the lists they are bound to and the tags they were marked with.

 

 

PHP RSS Reader comes with a complete admin panel where every setting can be controlled.The application creates SEO-friendly URLs for every category & article which is important for anyone who will use PHP RSS Reader for creating a feed-based website rather than using it as a personal feed-reader.

Todoyu is an open source task/project management, time tracking & collaboration application that is built with PHP. The application has a modern, Ajaxed interface where both users & clients can have roles on projects.

 

The Ajax Availability Calendar is a php script designed to show availability of whatever you might need it for (eg. holiday cottage, hotel rooms etc.). 
Free to use on your website or application and is currently being used (v.2) by hundreds, if not thousands, of websites around the world.

 

 

Ortro is an open source framework designed to make easy activities for job scheduling and system/application monitoring.

 

 

Simple Invoices is a simple, community developed, free/open source, web-based invoicing system.

Teambox is a project management platform created for real-world, real-time collaboration. Teambox uses a Twitter-style means of communication to send messages, update project status, and manage assigned tasks.

MyClientBase is a simple, intuitive, free and open source web based invoice management system developed with freelancers in mind.