### Index * [Ada](#ada) * [Android](#android) * [Bash](#bash) * [C](#c) * [C#](#c-sharp) * [C++](#c-1) * [Clojure](#clojure) * [Cloud Computing](#cloud-computing) * [CoffeeScript](#coffeescript) * [Erlang](#erlang) * [Git](#git) * [GLSL](#glsl) * [Go](#go) * [Haskell](#haskell) * [HTML / CSS](#html--css) * [Java](#java) * [JavaScript](#javascript) * [Angular.js](#angularjs) * [Kotlin](#kotlin) * [Language Agnostic](#language-agnostic) * [Operating Systems](#operating-systems) * [Lisp](#lisp) * [MATLAB](#matlab) * [Node](#node) * [NoSQL](#nosql) * [Objective-C](#objective-c) * [Ocaml](#ocaml) * [PHP](#php) * [Python](#python) * [Ruby](#ruby) * [Rust](#rust) * [Scala](#scala) * [SQL](#sql) * [Vim](#vim) ### Ada * [Introduction to Ada](https://learn.adacore.com/courses/intro-to-ada/index.html) ### Android * [Javatpoint Android Tutorial](https://www.javatpoint.com/android-tutorial) ### Bash * [Help messages will explain everything](https://explainshell.com) * [Learn Shell Programming](http://www.learnshell.org) ### C * [Learn C](http://www.learn-c.org) ### C Sharp * [Codeasy](https://codeasy.net/course/csharp_elementary) * [Learn C#](http://www.learncs.org) ### C++ * [CppKoans](https://github.com/torbjoernk/CppKoans) ### Clojure * [4Clojure - Koans](http://www.4clojure.com) * [Clojure Koans](http://clojurekoans.com) * [ClojureScript Koans](http://clojurescriptkoans.com) * [Try Clojure](http://www.tryclj.com) ### Cloud Computing * [AWS API Gateway](https://run.qwiklabs.com/focuses/269?catalog_rank=%7B%22rank%22%3A3%2C%22num_filters%22%3A1%2C%22has_search%22%3Atrue%7D&parent=catalog&search_id=3605949) - *registration required* * [AWS Identity and Access Management (IAM)](https://run.qwiklabs.com/focuses/7782?catalog_rank=%7B%22rank%22%3A6%2C%22num_filters%22%3A1%2C%22has_search%22%3Atrue%7D&parent=catalog&search_id=3605942) - *registration required* * [AWS Lambda](https://run.qwiklabs.com/focuses/6431?catalog_rank=%7B%22rank%22%3A2%2C%22num_filters%22%3A1%2C%22has_search%22%3Atrue%7D&parent=catalog&search_id=3605949) - *registration required* * [AWS Simple Storage Service (S3)](https://run.qwiklabs.com/focuses/7860?catalog_rank=%7B%22rank%22%3A3%2C%22num_filters%22%3A0%2C%22has_search%22%3Atrue%7D&parent=catalog&search_id=3597563) - *registration required* * [Google Cloud Platform](https://cloud.google.com/training/free-labs/) ### CoffeeScript * [Coffeescript Style Guide](https://github.com/polarmobile/coffeescript-style-guide/blob/master/README.md) * [Smooth CoffeeScript, Interactive Edition](http://autotelicum.github.io/Smooth-CoffeeScript/interactive/interactive-coffeescript.html) ### Erlang * [Try Erlang](http://www.tryerlang.org) ### Git * [git-game](https://github.com/git-game/git-game) * [git-game-v2](https://github.com/git-game/git-game-v2) * [Githug](https://github.com/Gazler/githug) (Tutorial in shell) * [Learn Git Branching](https://learngitbranching.js.org) * [Learn Git with Bitbucket Cloud](https://www.atlassian.com/git/tutorials/learn-git-with-bitbucket-cloud) * [Try Git](http://try.github.io) ### GLSL * [The Book of Shaders](https://thebookofshaders.com) ### Go * [Go Koans](https://github.com/cdarwin/go-koans) * [The Go Tutorial](http://tour.golang.org) ### Haskell * [Try Haskell!](http://tryhaskell.org) ### HTML / CSS * [CSS Diner](http://flukeout.github.io) * [Flexbox Defense](http://flexboxdefense.com) * [Flexbox Froggy](http://flexboxfroggy.com) * [FreeCodeCamp: Responsive Web Design Course](https://www.freecodecamp.org/learn/responsive-web-design/basic-html-and-html5/) * [Grid Garden](https://cssgridgarden.com) * [Learn by doing beginner projects](https://dash.generalassemb.ly) * [Learn HTML & CSS interactively](https://www.codecademy.com/learn/web) * [Prototyping a professional website](https://www.codecademy.com/learn/make-a-website) ### Java * [CodingBat code practice](http://codingbat.com/java) * [Java at Codecademy](https://www.codecademy.com/courses/learn-java) * [Learn Java](http://www.learnjavaonline.org) * [Learneroo Java tutorial](https://www.learneroo.com/modules/11) ### JavaScript * [ABC of JavaScript : An Interactive JavaScript Tutorial](http://www.openjs.com/tutorials/basic_tutorial/) * [Codecademy jquery track](https://www.codecademy.com/learn/jquery) * [ES6 Interactive Guide](http://stack.formidable.com/es6-interactive-guide/#/) * [Functional Programming in Javascript](https://github.com/ReactiveX/learnrx) * [JavaScript Algorithms and Data Structures Certification](https://www.freecodecamp.org/learn/javascript-algorithms-and-data-structures/basic-javascript) * [Javascript interactive tutorial on CodeCademy](https://www.codecademy.com/learn/javascript) * [JavaScript interactive tutorial on CoderMania](http://www.codermania.com/javascript/lesson/1a/hello-world) * [Javascripting](https://github.com/sethvincent/javascripting) * [Learn JavaScript](http://www.learn-js.org) * [Learn knockout.js](http://learn.knockoutjs.com) * [Learning Advanced JavaScript](http://ejohn.org/apps/learn/) * [Try jQuery](http://try.jquery.com) #### Angular.js * [Angular Basics](http://www.angularjsbook.com) * [AngularJS - Step by Logical Step](http://nicholasjohnson.com/angular-book/) * [egghead.io: Learn AngularJS with Tutorial Videos & Training](https://egghead.io) * [Learn AngularJS with free interactive lessons](http://www.learn-angular.org) #### Bootstrap * [Front End Libraries: Bootstrap](https://www.freecodecamp.org/learn/front-end-libraries/bootstrap) #### jQuery * [Front End Libraries: jQuery](https://www.freecodecamp.org/learn/front-end-libraries/jquery) #### React * [Front End Libraries: React](https://www.freecodecamp.org/learn/front-end-libraries/react) ### Kotlin * [Kotlin tutorial](https://kotlinlang.org/docs/tutorials/) ### Language Agnostic * [CodeCombat](http://codecombat.com) - Python, JavaScript, CoffeeScript, Clojure, Lua, Io * [Codility](https://codility.com/programmers/) * [Python Tutor](http://pythontutor.com) - Python, Java, JavaScript, TypeScript, Ruby, C, C++ * [The Fullstack Tutorial for GraphQL](https://www.howtographql.com) #### Operating systems * [Learning operating system development using Linux kernel and Raspberry Pi](https://github.com/s-matyukevich/raspberry-pi-os) - Sergey Matyukevich (:construction: *in process*) ### Lisp * [Lisp Koans](https://github.com/google/lisp-koans) ### MATLAB * [Interactive Tutorials for MATLAB, Simulink, Signal Processing, Controls, and Computational Mathematics](http://www.mathworks.com/tutorials) ### Node * [Node School](http://nodeschool.io) ### NoSQL * [MongoDB Koans](https://github.com/chicagoruby/MongoDB_Koans) * [Try Redis](http://try.redis.io) ### Objective-C * [Try Objective-C](http://tryobjectivec.codeschool.com) ### Ocaml * [Try Ocaml](http://try.ocamlpro.com) ### PHP * [CodeCademy PHP](https://www.codecademy.com/learn/php) * [Learn PHP](http://www.learn-php.org) ### Python * [Codecademy Python course](https://www.codecademy.com/learn/python) * [How to Think Like a Computer Scientist: Learning with Python, Interactive Edition](http://interactivepython.org/courselib/static/thinkcspy/index.html) * [Learn Python](http://www.learnpython.org) * [Learn Python Step by Step](http://www.techbeamers.com/python-tutorial-step-by-step) * [Python for Everybody - Interactive](https://runestone.academy/runestone/books/published/py4e-int/index.html) - Barbara Ericson * [Python Koans](https://github.com/gregmalcolm/python_koans) ### Ruby * [CodeCademy Ruby](https://www.codecademy.com/learn/ruby) * [Ruby Koans](http://www.rubykoans.com) * [The Odin Project](http://www.theodinproject.com) * [Try Ruby](http://tryruby.org) ### Rust * [Rustlings](https://github.com/rust-lang/rustlings) ### Scala * [A Tour of Scala - an interactive scala tutorial](https://scalatutorials.com/tour/) * [Scala Exercises](https://www.scala-exercises.org) ### Selenium * [Selenium Tutorial - Web Automation](http://www.techbeamers.com/selenium-webdriver-tutorial) ### SQL * [SQL at Codecademy](https://www.codecademy.com/courses/learn-sql) * [SQLBolt](http://sqlbolt.com) ### Vim * [Interactive Vim Tutorial](http://www.openvim.com/tutorial.html)