Top Alternatives to Sitefinity

WordPress is an open source content management solution based on PHP maintained by Automattic which is also being offered as hosted solution.

Drupal is an open source platform for building websites.

Joomla is a free and open-source content management system (CMS) for publishing web content.

Ghost is an open source publishing platform which is beautifully designed, easy to use, and free for everyone.

ImpressPages is an open-source PHP framework with built-in content editor.

concrete5 is an open-source content management system (CMS) for publishing content on the World Wide Web and intranets.

Plone is a free and open source content management system built on top of the Zope application server.

django CMS is a free and open source content management system platform for publishing content.

Squarespace is a SaaS-based content management system-integrated website builder, blogging platform, hosting service and domain name registrar.

Redaxscript is a modern, ultra lightweight and rocket fast Content Management System.

SilverStripe is a free and open-source Content Management System (CMS) and framework for setting up and maintaining websites and web applications.

Microsoft Expression Web, code-named Quartz, is an HTML editor and general web design software.

Web Start Today is a premium Do-It-Yourself (DIY) website builder.

ExpressionEngine is a flexible, feature-rich content management platform.

Chyrp is a ultra-lightweight ultra-flexible blogging engine with a fetish for birds and misspellings.

Symphony CMS is a XSLT-powered open source content management system.

Habari is a free and open source blog engine written in PHP and currently supports MySQL, SQLite and PostgreSQL for the database backend.

Website X5 is a software that allows you to create autonomously websites, blogs and E-commerce.

Craft CMS is a content management system for developers, designers, and web professionals that blends flexibility, power, and ease of use for clients.

Kentico CMS is a web content management system (WCMS) for building websites, online stores, intranets, and Web 2.0 community sites.

Pimcore provides free and open-source customer experience management, digital asset management, product information management, multi-channel publishing and e-commerce software.

blogstrap.py is a simple Blog using web.py and bootstrap3.

Umbraco is an open source content management system (CMS) platform.

Ucraft is a free website builder.