In today’s competitive marketplace, establishing an online presence is very necessary for all small – to- medium businesses. Using of free open source e-commerce platforms to manage online transactions might be a good decision as you want to step in the online business world. There are a number of open source e-commerce platforms that may make you confused. All have their differences. Through this article we are going to introduce you with some popular open source e-commerce platforms that will be helpful for your website. MAGENTO Magento is world’s mostly used e-commerce platforms. Statistics say With nearly 21% of the world’s top 100,000 ecommerce sites built on the Magento platform. It is the most popular and one of the best CMS platforms used today. Magento is available in Community and Enterprise editions. Magento 2.0 was released recently and has grown to be the cornerstone of the entire eCommerce industry. Magento 2.0 has reduced page loading speeds by one-half, improved UI and engaging UX and is overall built to mesmerize shoppers with a single visit. Magento offers different features with 3 seconds page loading, lots of free and paid extensions, security, high end bug free coding and above all, it’s FREE. But the little disadvantages are, its performance gets affected in small sized server, and it’s a little bit confusing for the first time users. SHOPIFY Shopify is the most effective and widely used e-commerce platform. According to statistics approximately 75,000 online stores have been built and operated using Shopify. The popular eCommerce platforms is a favorite for many online store builders for its large variety of add-ons that further enhance the functioning of an eCommerce store by notches. Shpify is very much SEO friendly. It offers a vast range of add-ons and offers all-time customer assistance. But some backlogs of Shopify are it is slightly overpriced in comparison to others and its back-end configuration is not so easy to break through. WOO COMMERCE WooCommerce is an open sourcee-commerceplugin for WordPress. It is designed for small to large-sized online merchants using WordPress. Launched on 27th September, 2011, the plugin quickly became popular for its simplicity to install and customize and free base product. But it is not so fruitful for mid and large scale enterprises. OPENCART OpenCart is an online store management system. It is PHP-based, using a MySQLdatabase and HTML components. Support is provided for numerous languages and currencies, and it is freely available under the GNU General Public License. PRESTASHOP PrestaShop is a free, open sourcee E-Commerce solution. The software is published under the Open Software License (OSL). It is written in the PHP programming language with support for the MySQL database management system. PrestaShop is currently used by 250,000 shops worldwide and is available in 60 different languages. Though it is impossible to say which platform is best, it depends on your needs of features. Hope, the above discussion will help you to choose better option for your website.