TutnIQ.com is described as 'TutnIQ is a place to learn new things and share your knowledge with others. Build tutorials, FAQ’s and glossaries. Embed content from your favorite sites. Create quizzes' and is a Online Education Service in the Education & Reference category. There are more than 50 alternatives to TutnIQ.com, not only websites but also apps for a variety of platforms, including Android, iPhone, Windows and iPad. The best alternative is Udemy. It's not free, so if you're looking for a free alternative, you could try SoloLearn or Moodle. Other great sites and apps similar to TutnIQ.com are Open edX (Free, Open Source), Chamilo (Free, Open Source), Edmodo LMS (Freemium) and Instructure Canvas (Free, Open Source).
Moodle is an open source tool for creating online dynamic web sites for their students. To work, it needs to be installed on a web server somewhere, either on one of your own computers or one at a web hosting company.
Chamilo is an open-source (under GNU/GPL licensing) e-learning and content management system, aimed at improving access to education and knowledge globally. It is backed up by the Chamilo Association, an international ONG based in Europe.
SWAD (Shared Workspace At a Distance) is a free-software, fast and efficient Learning Management System (LMS) for distance learning and teaching management. It has been developed and used at the University of Granada (Spain) since 1999.