Free Code Camp's open source community help you build a job-worthy portfolio of real apps used by real people, while helping nonprofits.




The best free alternative to Codecademy is freeCodeCamp, which is also Open Source. If that doesn't suit you, our users have ranked more than 100 alternatives to Codecademy and loads of them is free so hopefully you can find a suitable replacement. Other interesting free alternatives to Codecademy are Khan Academy, exercism, SoloLearn and edX.
Free Code Camp's open source community help you build a job-worthy portfolio of real apps used by real people, while helping nonprofits.




Khan Academy is not-for-profit with the goal of changing education for the better by providing a free world-class education to anyone anywhere.




Download and solve practice problems in over 30 different languages. For code newbies and experienced programmers.


Learning has never been this social and accessible for so many! Bit-sized videos and fun practice sessions grab your attention and keep you focused, for guaranteed best results!.




Provides online courses from leading global universities, offering flexible, convenient learning experiences. Focuses on integrating technology to transform both on-campus and worldwide education, offering both free and paid courses with certificate options.




The Odin Project is one of those "What I wish I had when I was learning" resources. Not everyone has access to a computer science education or the funds to attend an intensive coding school and neither of those is right for everyone anyway.


Free tutorials and reference manuals with examples for Computer Fundamentals, JSF, C Sharp, Flex, GWT, PL/SQL, Eclipse, JUnit, Pascal, Maven, Scala, Spring, Struts 2, HTML5, ANT, iBATIS, Django, JSP, JAVA, JDBC, AJAX, WAP, SQL, MySQL, C/C++, PERL, PHP, Ruby, Ruby on Rails...

Code.org is a non-profit whose goal is to expose all students to computer programming. We believe that computer programming is a liberal art; it's something EVERY student in the world should be exposed to at some point in their childhood education.

LeetCode is a platform for learning and improving coding skills with the goal of being fully prepared for programming interviews. Choose problems to solve from categories such as System Design, Algorithms and Database, join code contests and engage in mock interviews.


Interactive learning for 12 million globally with 400+ courses; master Python, SQL, and AI. Uses real-world projects, free chapters, updated content.




Hyperskill is an educational platform for future professionals with the opportunity to learn theory and practice by programming your own working applications.







After taking the full course which needs about 3 months, you can understand so much code.