Open Source solution contains the code, which has already been written, by the open community and it is freely available for general public use people can also modify it as per as their need.
If you are going to developed your website for business purpose, for personal blog or for new publishing website you can use following open source.
WordPress
WordPress is the most popular web blogging software because it provides platform with a focus on aesthetics, web standards, and usability. WordPress API allows creating unlimited plugins to extend the impressive standard functionality even more. WordPress is blessed with an active community, which is the heart of open source software. It comes with a great set of features designed to make your experience as a publisher on the Internet as easy, pleasant and appealing as possible. Check out our wordpress customization service for more details.
Joomla
Joomla is an effectual open source content management system which empowers you to build Website and online application. Joomla is an open source CMS that is freely available to everyone. Joomla affords you an opportunity to develop your site in short period of time using set of external joomla element and joomla module. By hiring a joomla developer for joomla theme customization, you can change website look as per your need. Multiple joomla templates are available for add and can change it with skilled joomla templates.
Drupal
Drupal CMS is an open-source web development application and content management system for building dynamic websites offering a broad range of features. Many website design company relies on drupal content management system. Drupal CMS based website help to increase productivity, improve operational efficiency and reduce risk.
If you are going to developed your website for ecommerce shopping cart solution and for online store, You can use following open source.
Magento
Magento is a robust E-commerce software application design to be simple to customize. It is an open-source e-commerce platform that provides merchants with a sophisticated software platform to manage their online sales. Using Magento one can never feel trapped in eCommerce Solution. One of the most power full feature of magento is it contain ability to manage multiple websites and stores from one back end. It allows store owners to manage stores on different URLs, It has ability to easily expand into additional languages makes Magento scalable as your business grows out of your home market. You can easily turned your ecommerce store to work as per your need by hiring magento programmer
osCommerce
osCommerce is an Open Source ecommerce solution and PHP based Online Shopping Cart Software, distributed under GNU General Public License. It provides wide range of features that allows online stores to be setup properly quickly with ease, and is available for free as an Open Source based solution released under the GNU General Public License.Now a day osCommerce ecommerce solution used by many website design company.
Zen Cart
Zen Cart is an open source online store management system. It is PHP-based, using a mysql database and HTML components. Support is provided for several languages and currencies, and it is freely available under the GNU General Public License. Zen Cart provide truly professional ecommerce store management platform. Zen Cart contains all essential tools required to build a successful online store.