Administration Tools
paFileDB
paFileDB is a file management system that enables you to create and manage a database of files available for download on your Web site. Learn more...                                                               
SQLyog Enterprise
SQLyog Enterprise is a MySQL management tool that allows you to smartly manage your MySQL databases. SQLyog Enterprise provides you an intuitive GUI to manage tables, indexes, relationships, etc. It also provides an Excel-like interface to modify data. Using SQLyog Enterprise Power Tools, you can create SQL queries using sophisticated drag-n-drop interfaces, transfer data from you local PC to hosted MySQL , save database backups directly into your hard-disk at scheduled intervals, synchronize schema/data of you local MySQL with hosted MySQL, etc. Learn more...                                                               
WISE-FTP
WISE-FTP is a powerful FTP client - an application that enables you to connect to any FTP server and download or upload files and directories. Learn more...                                                               
Advertising
Noahs Classifieds
Noah's Classifieds V8 is a Great PHP, MySQL based highly customizable classified ad application that allows users to post advertisements to unlimited categories and subcategories. This new and Hot Web 2.0 Look , Feel and Performance Features: easy install, image upload for categories and advertisements, custom fields for advertisements, customizable email notifications, category locking, pending ads, ad expiration, template and stylesheet based, most popular ads, and more. Noah's Classifieds has been a top download for those who are serious about their Classifieds Website since 2003. Try the All New Noah's Classifieds V8 (Just Released May 2008). Nice URL feature, new template system, HTML notifications, multiple picture upload per ad, automatic updates and much more! Learn more...                                                               
  
OpenX
The free, open source ad server trusted by more than 30,000 web publishers in over 100 countries around the world. OpenX is a powerful ad serving solution that puts control over online advertising back in the hands of publishers. Learn more...                                                               
Blogs
     
BlogEngine.NET
BlogEngine.NET is an open source .NET blogging project that was born out of desire for a better blog platform. A blog platform with less complexity, easy customization, and one that takes advantage of the latest .NET features. Learn more...                                                               
dasBlog
dasBlog is an ASP.NET 2.0 blogging application. It runs on ASP.NET 2.0, (all versions 1.9x and prior run on ASP.NET 1.1 & ASP.NET 2.0) and is developed in C#. dasBlog is an evolution of the BlogX weblog engine initially written by Chris Anderson and contributors. Learn more...                                                               
Geeklog
Geeklog is a PHP/MySQL blogging tool that enables you to set up and manage a fully functional dynamic Web site. Learn more...                                                               
 Lifetype
LifeType is an open-source blogging platform with support for multiple blogs and users in a single installation. Writing articles is comfortable with the included state of the art WYSIWYG editor. Adding pictures and sound files (for Podcasting) is just a matter of browse and click. The Dashboard provides you with all the information you need every time you log in. Recent articles, comments and trackback as well as brief statistics get you updated about your blog immediately. Learn more...                                                               
reBlog
reBlog is an open source web-based RSS aggregator which allows you to filter and republish content within one application. Learn more...                                                               
Serendipity
Serendipity is a PHP-powered weblog application which gives the user an easy way to maintain an online diary, weblog or even a complete homepage. While the default package is designed for the casual blogger, Serendipity offers a flexible, expandable and easy-to-use framework with the power for professional applications Learn more...                                                               
WordPress
WordPress is a semantic personal publishing platform (i.e., blog) with a focus on aesthetics, Web standards, and usability. It supports multiple users, categories, comments, bookmarklets, RSS syndication, several APIs, and weblogs.com ping, among other features. Learn more...                                                               
Content Management
 anyInventory
anyInventory is the Web's most flexible inventory system. Features include categories and subcategories, user-defined fields, file uploads, and advanced search functionality. Learn more...                                                               
Community Server
Community Server is the platform that powers web communities with over 50,000 customers, Community Server helps organizations around the world power some of the most demanding web communities. Learn more...                                                               
DotNetNuke
DotNetNuke is an open-source Web Application Framework ideal for creating and deploying projects such as commercial websites, corporate intranets and extranets, online publishing portals, and custom vertical applications. Learn more...                                                               
Drupal
Drupal is software that allows an individual or a community of users to easily publish, manage and organize a great variety of content on a website. Tens of thousands of people and organizations have used Drupal to set up scores of different kinds of web sites. Learn more...                                                               
Joomla
Joomla! is one of the most powerful Open Source Content Management Systems on the planet. It is used all over the world for everything from simple websites to complex corporate applications. Joomla! is easy to install, simple to manage, and reliable. Learn more...                                                               
     
Mambo
Mambo is a full-featured content management system that can be used for everything from simple websites to complex corporate applications. Learn more...                                                               
     
MODx
MODx is an open source PHP Application Framework that helps you take control of your online content. It empowers developers and advanced users to give as much control as desired to whomever they desire for day-to-day website content maintenance chores. Learn more...                                                               
     
Moodle
Moodle is a course management system (CMS) - a free, Open Source software package designed using sound pedagogical principles, to help educators create effective online learning communities. It can scale from a single-teacher site to a 50,000-student University. Learn more...                                                               
     
Nucleus
Nucleus is a content management tool that enables you to set up and maintain multiple blogs. It supports multiple languages and includes a commenting system and search feature. Learn more...                                                               
     
SilverStripe
SilverStripe is an intuitive content management system atop a powerful programming framework. Learn more...                                                               
     
Tandem Server
Tandem Server CMS is a website management solution for small businesses and personal websites. Our intuitive online publishing tool makes updating your website a snap for anyone. Tandem Server is free to use and requires only a basic window’s hosting plan to run so give it a try. Learn more...                                                               
     
Xoops
XOOPS is a content management system (CMS) that allows administrators to easily create dynamic websites. It is an ideal tool for developing small to large dynamic community websites, intra company portals, corporate portals, weblogs and much more. It can be installed on an Internet host with a PHP-capable web server (e.g. Apache) and a database (e.g. MySQL). Learn more...                                                               
Content Providers
     
Feedzilla
Feedzilla offers you the possibility to enhance your website with quality and relevant constantly updated news. On Feedzilla you can either pick pre-defined categories or build custom searches using keywords. Our widgets can be customized effortlessly to match the look and feel of your website and installation is very easy. Our news feeds are aggregated from our one thousand media partners (e.g. Reuters, News corp., About.com, BBC...) and constantly updated once an hour or even every 15 minutes for the top categories. Learn more...                                                               
     
Fotolia
Fotolia is offering millions of creative high-quality stock images for as little as $1. Membership is free. Build the best website with the best images from Fotolia.com. Learn more...                                                               
     
Simply Hired
Job-a-matic is a great way to earn additional revenue from your existing website and provide valuable content for your users. It is a free, hosted and completely brandable job board for your website. Set your own price, and we take care of the rest. If there are no job posts, we provide relevant job content so that your job site never has a "ghost town" feel. Learn more...                                                               
eCommerce Solutions
nopCommerce
nopCommerce is an open source e-commerce solution that contains both a catalog frontend and an administration tool backend. nopCommerce is a fully customizable shopping cart. It's stable and highly usable. From downloads to documentation, nopCommerce.com offers a comprehensive base of information, resources, and support to the nopCommerce community.
nopCommerce is new but very popular open source e-commerce solution. nopCommerce is available for free. A solution with comprehensive features that is easy to use for new online businesses, yet powerful enough for the most demanding e-commerce expert. It’s a secure, scalable and extendable e-commerce platform.

Create and manage a professional online store with nopCommerce. Built-in shopping cart, catalog management, credit card processing, shipping calculation, template customization and other powerful tools come standard. Learn more...                                                               
     
osCommerce
osCommerce is the leading Open Source online shop e-commerce solution. It offers shopping cart functionality that allows store owners to setup, run, and maintain their online stores. Learn more...                                                               
     
Pinnacle Cart
Pinnacle Cart is an extremely powerful php shopping cart and website builder application. Designed from marketing perspective, this eCommerce application is feature-packed, robust, scalable and easy to use. Pinnacle Cart is the clear choice for serious merchants focused on rapidly and cost effectively deploying, managing and growing a successful web-based business. Learn more...                                                               
     
Zen Cart
Zen Cart™ truly is the art of e-commerce; a free, user-friendly, open source shopping cart system. The software is being developed by group of like-minded shop owners, programmers, designers, and consultants that think e-commerce could be and should be done differently. Learn more...                                                               
Galleries
     
4Images
4images is an image gallery management tool. Visitors can register and post comments about pictures in your gallery. Learn more...                                                               
     
Coppermine
Coppermine is a photo gallery tool that enables you to arrange pictures in categories and albums, create thumbnails of images, search for pictures, and view slideshows. Learn more...                                                               
     
Gallery
Gallery is the next generation of open source photo sharing Web applications. Gallery gives you an intuitive way to blend photo management seamlessly into your own Web site whether you're running a small personal site or a large community site. Hundreds of thousands of people and organizations are using Gallery to create personalized photo albums on their Web sites. Learn more...                                                               
Message Boards/Forums
 phpBB
phpBB™ (“PHP Bulletin Board”) is the world's leading Open Source forum software. Distributed under the GNU General Public License, phpBB is free software, developed by volunteers from around the world. phpBB is used on over 2.4 million commercial, non-profit, social networking and community websites in over sixty languages. Learn more...      
                                                       
Simple Machines Forum
SMF is an advanced community software package that enables you to set up and manage online community forums. Learn more...                                                               
     
Vanilla Forum
Vanilla is a free lightweight and extensible open source forum software using PHP scripting language and MySQL database management system. Learn more...                                                               
     
YetAnotherForum
YetAnotherForum.NET (YAF) is a Open Source discussion forum or bulletin board system for web sites running ASP.NET. The latest version is ASP.NET v2.0 with a Microsoft SQL Server backend. The full C# source code is available licensed as GPL. Learn more...                                                               
Other
     
OpenDB
OpenDB (Open Media Lending Database) is a PHP/MySQL inventory application that allows you to easily catalog different media types such as DVDs, VCDs, CDs, VHS tape, games, books, and laser disks. Learn more...                                                               
     
OrangeHRM
OrangeHRM aims to be the world’s leading open source HRM solution for small and medium sized enterprises (SMEs) by providing a flexible and easy to use HRM system affordable for any company worldwide. Learn more...                                                               
     
phpFreeChat
phpFreeChat is a free, simple to install, fast, customizable and multi languages chat that uses a simple filesystem for message and nickname storage. It uses AJAX to smoothly refresh (no flicker) and display the chat zone and the nickname zone. It supports multi-rooms (/join), private messages, moderation (/kick, /ban), customized themes based on CSS and plugins systems that allows you to write your own storage routines (ex: Mysql, IRC backends …), and your own chat commands! Learn more...                                                               
Project Management
     
Brim
Brim is a personal information manager which provides online management of your bookmarks/favorites, your calendar, tasks, notes, recipes, passwords and much more! Learn more...                                                               
     
dotProject
dotProject is a web-based project management application, designed to provide project layout and control functions. dotProject aims to provide the project manager with a tool to manage tasks, schedules, communication and sharing. Learn more...                                                               
     
Mantis
Mantis is a free popular web-based bugtracking system. Learn more...                                                               
     
phpCollab
phpCollab is a collaboration and project management system that enables you to set up and manage a projects and share files. Learn more...                                                               
     
PHProjekt
PHProjekt is a modular application for the coordination of group activities and to share informations and documents via the web. Learn more...                                                               
Social Networking
     
elgg
Elgg is an open, flexible social networking engine, designed to run at the heart of any socially-aware application. Building on Elgg is easy, and because the engine handles common web application and social functionality for you, you can concentrate on developing your idea. Elgg is open source. That means, when you use Elgg, you have the benefit of being part of a large developer community, with the security and stability that hundreds of eyes can provide. It's also headed and used by Curverider and its partners, so you can be assured that it's in commercial use and will cope with the demands of a popular application. Learn more...                                                               
     
KickApps
Create your own social network with photo & video sharing, blogs, message boards, widgets, video players and much more. Your social network is hosted by KickApps and can be integrated directly into your GoDaddy website. Customize it with your design, mask its DNS and go global with multiple languages. It's an easy way to make your website social. Sign up today, and receive an extra 10% off. Learn more...                                                               
Tools/Scripts
jQuery
jQuery is a fast, concise, JavaScript Library that simplifies how you traverse HTML documents, handle events, perform animations, and add Ajax interactions to your web pages. jQuery is designed to change the way that you write JavaScript. Learn more...                                                               
script.aculo.us
script.aculo.us provides you with easy-to-use, cross-browser user interface JavaScript libraries to make your web sites and web applications fly. Learn more...                                                               
Website Add-Ons
     
Kampyle Feedback
Use Kampyle to: Collect, analyze and manage your website visitor’s feedback. The Kampyle on-demand (SaaS) application combines: Fully customizable feedback forms, Powerful reporting and analysis tools, Easy-to-use feedback management application.

Discover how Kampyle lets you leverage valuable customer feedback to improve your website and increase customer satisfaction. Learn more...                                                               
     
Network for Good
Network for is a nonprofit organization that helps other nonprofits raise money and reach supporters online. Founded in 2001 by AOL, Cisco and Yahoo!, Network for Good has processed over $250 million in donations for more than 45,000 nonprofits. GoDaddy nonprofit customers can save 50% when they setup their online fundraising page with Network for Good. Learn more...                                                               
     
PHCDownload
A file content management and manipulation system unlike any other available on the market today, with unique innovations, tools, and design, customizing and producing your database is made easy. Learn more...                                                               
     
phpMyFAQ
phpMyFaq is a multilingual, database-driven FAQ management system that you can use to create and manage a FAQ on your Web site. Learn more...                                                               
     
phpmyvisites
phpMyVisites is a free and powerful open source (GNU/GPL) software for websites statistics and audience measurements. phpMyVisites gives a lot of information on websites visitors, visited pages, software/hardware utilization, etc... The GUI Interface is fun and practical. Statistics are very complete and use many clear graphics to present data. The web analytics software is translated in more than 30 languages! Learn more...                                                               
WebCalendar
WebCalendar is a PHP-based calendar application that can be configured as a single-user calendar, a multi-user calendar for groups of users, or as an event calendar viewable by visitors. Learn more...                                                               
WWW Paint Board
WWW Paint Board (Wpb) is a tool where users can draw dynamically on the web with VML (Vector Markup Language) technology. Learn more...                                                               
Zemanta
Zemanta is a powerful authoring assistance tool that will save you time, make your blog posts more compelling, boost your discoverability by search engines, increase your content's visibility among syndicators, and inspire you to write more informed posts.
It all starts with simple point & click enrichment of your blog posts in real-time, while you type. Zemanta suggests tags, in-text links, photos, videos, maps, slideshows, and related articles from other bloggers and publishers. It can also be used as a research tool and idea generator.

With Zemanta Free, you can personalize your experience by accessing your online photo sharing account, RSS feeds, and content from your social networks. Learn more...                                                               
Wikis
MediaWiki
MediaWiki is a free software wiki package originally written for Wikipedia. It is now used by several other projects of the non-profit Wikimedia Foundation and by many other wikis. Learn more...                                                               
 PmWiki
PmWiki is a system for collaborative creation and maintenance of websites. Pages created with pmWiki look and act like normal web pages, except they have a link that makes it easy to modify existing pages and add new pages into the website. Learn more...