CMS

Community Powered Content Management and Publishing System
Melody is an open source community powered content management and publishing system for bloggers and publishers whose community of users and contributors is its most important feature.

Static Website Generator and Lightweight CMS : PieCrust
PieCrust is a lightweight CMS that generate static website. that’s all managed with text files. this static website generator is a Simple, no complex setup, databases, or administrative panels.

Open Source CMS for Website Editors : SilverStripe
SilverStripe is a free and open source CMS for creating and maintaining websites. It provides an out of the box web-based administration panel that enables users to make modifications to parts of the website, which includes a WYSIWYG website editor.

Mura – OpenSource CMS to Manage your Site Content Easily
Mura is a Free, Flexible and Comprehensive web-based Content Management system that allows your organization to publish and control web content quickly and easily.

Stacey – Lightweight Minimalist CMS (No database setup)
Stacey is a lightweight content management system. Stacey stores all of its content using flat text files & folders rather than a traditional database.

Merengue – Django Based CMS framework
Merengue is a fully featured CMS framework built on top of Django framework.

PyroCMS – Lightweight,Themeable & Dynamic CMS based on Codeigniter
PyroCMS is a Open Source CMS built using the CodeIgniter PHP framework. It Using an MVC architecture it was built with modularity in mind.

ProcessWire – Open Source CMS + Framework with A jQuery-Inspired API
ProcessWire is an open source content management system (CMS) and web application framework aimed at the needs of designers, developers and their clients.

OneFileCMS – Small Content Management System Based PHP
OneFileCMS is free and opensource CMS (Content Management System) easy-to-implement, highly customizable, database-less PHP script. it is useful for those who update their websites by editing the source of the files directly.

Simple Customer – Open Source Contact Management Software Based PHP/mysql
Simple Customer is an open source contact management software, developed for anyone who needs a simple and easy way to keep track of their clients, customers and business contacts.