Coding no longer requires you to attend classes or access expensive books, check the following websites to get into the programmer’s shoes:

Udemy: Udemy is aimed at professional adults and uses content from online content creators to sell for profit. The platform’s courses are not credentialed but students take courses largely as a means of improving job-related skills and Udemy has made a special effort to attract corporate trainers seeking to create coursework for employees of their company. There are plenty of free programming courses, which are taught via video lessons, such as Programming for Entrepreneurs - HTML & CSS or Introduction to Python Programming. Udemy also offers a mobile app on Apple iOS and Android for its users to access their courses via mobile.

CodeAcademy: Founded in August 2011 by Zach Sims and Ryan Bubinski CodeAcademy has over 25 million users and is one of the most popular online site to learn courses like  HTML & CSS, JavaScript, jQuery, PHP, Python and Ruby. CodeAcademy is freemium with a "pro" option that gives users access to a personalized learning plan, quizzes, realistic projects, and live help from advisors.

edX: edX a nonprofit organization and runs on the free Open edX open-source software platform.  Founded in May 2012 by scientists from Harvard and MIT edX has over 70 schools and around 14 million students taking more than 1,800 courses online.

Coursera: Founded by Stanford professors Andrew Ng and Daphne Koller, Coursera offers widest range of courses (free and paid) in collaboration with corporates such as IBM and universities such as the University of Washington, Stanford, University of Michigan, University of Minnesota and many others. Coursera courses last approximately four to ten weeks, with one to two hours of video lectures a week. These courses provide quizzes, weekly exercises, peer-graded assignments, and sometimes a final project or exam. Coursera had more than 28 million registered users and more than 2,000 courses.

GitHub: Founded in 2008, GitHub is a Git epository hosting service. There are more than 500 free programming books with over 80 different programming languages. Users of open source and business platforms can host and review code, manage projects, and build software.

MIT Open Courseware: MIT Open Courseware is a large-scale, web-based publication of MIT course materials for undergraduate and graduate level courses online freely and openly available to anyone, anywhere. Most of its courses include interactive web demonstrations in Java, complete textbooks written by MIT professors, streaming video lectures of which can be downloaded for viewing offline. All video and audio files are also available from iTunes U and the Internet Archive.

Hack.pledge: Hack.pledge() is a movement for programmers to collectively improve their skills and to mentor and teach novice developers. Once you sign up on hack.pledge you are on a waitlist and then linked with a mentor or mentee when enough people have signed up for a certain program. Hack.pledge() was founded by HackHands, a Brazilian web development company founded in 2013, which also launched the HackSummit, the largest virtual conference and programming conference which had more than 64,000 registrants.

Code Avengers: comprising of academicians, software developers and designers the Code Avengers team provides fun and interactive programming courses available in English, Russian, Dutch, Spanish, Italian, Turkish and Portuguese. Code Avengers courses are of short duration and teach you to code games, apps and web sites using JavaScript, HTML and CSS.

Khan Academy: A free and non-profit educational organization founded by educator Salman Khan in 2006, Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard to program drawings, animations and games using JavaScript and ProcessingJS, or learn to create webpages with HTML and CSS. Khan Academy has also collaborated with The California Academy of Sciences, and MIT to offer specialized content.