36 Best Free Online Programming Courses On Codecademy

Whether you’re trying to level up your career, build your side project, or simply play around with programming, you’ve found the right place to start.
36 Best Free Online Programming Courses On Codecademy

36 Best Free Online Programming Courses On Codecademy: Codecademy is an online interactive platform that offers free coding classes in 12 different programming languages including Python, Java, JavaScript (jQuery, AngularJS, React.js), Ruby, SQL, C++, and Sass, as well as markup languages HTML and CSS. The site also offers a paid "pro" option that gives users access to personalized learning plans, quizzes, realistic projects, and live help from advisors.

Codecademy was founded in August 2011 by Zach Sims and Ryan Bubinski. Sims dropped out of Columbia University to focus on launching a venture, and Bubinski graduated from Columbia in 2011.[8] The company, headquartered in New York City, raised $2.5 million in Series A funding in October 2011 and $10 million in Series B funding in June 2012. The latest round of funding was led by Index Ventures. Crunchbase reports an additional Series C round of funding for an undisclosed amount, by Bloomberg Beta in June 2013.

The platform provides courses for learning command line and Git. In September 2015, Codecademy, in partnership with Periscope, added a series of courses designed to teach SQL, the predominant programming language for database queries. In October 2015, Codecademy created a new course, a class on Java programming. As of January 2014, the site had over 24 million users who had completed over 100 million exercises. The site has received positive reviews from the New York Times and TechCrunch.

There are Pro and Free Courses on Codecademy, and these are all the free courses on codecademy for beginners to learn how to code:

1- Learn How to Code

Programming is, quite literally, all around us. From the take-out we order, to the movies we stream, code is ever present in our lives. Whether you are about to start your journey as a web developer, can’t decide which language to learn first, or just want to increase your digital literacy, learning programming fundamentals will be beneficial to your career.

In this series of lessons, you’ll explore ideas that are at the heart of learning how to code and start writing your own code!

Take-Away Skills:

You will get a solid foundation in key programming concepts such as variables, functions, and control flow. Learning these concepts will set you up for success in any programming language that you choose to learn!

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2- Introduction to HTML

HTML is the foundation of all web pages. Without HTML, you wouldn’t be able to organize text or add images or videos to your web pages. HTML is the beginning of everything you need to know to create engaging web pages!

Take-Away Skills

You will learn all the common HTML tags used to structure HTML pages, the skeleton of all websites. You will also be able to create HTML tables to present tabular data efficiently.

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3- Learn Python 2

Python is a general-purpose, versatile and popular programming language. It’s great as a first language because it is concise and easy to read, and it is also a good language to have in any programmer’s stack as it can be used for everything from web development to software development and scientific applications.

Take-Away Skills:

This course is a great introduction to both fundamental programming concepts and the Python programming language. By the end, you’ll be comfortable programming in Python and taking your skills off the Codecademy platform and onto your own computer.

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4- Introduction To JavaScript

JavaScript is among the most powerful and flexible programming languages of the web. It powers the dynamic behavior on most websites, including this one.

Take-Away Skills:

You will learn programming fundamentals and basic object-oriented concepts using the latest JavaScript syntax. The concepts covered in these lessons lay the foundation for using JavaScript in any environment.

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5- Learn Java

ava is among the most popular programming languages out there, mainly because of how versatile and compatible it is. Java can be used for a large number of things, including software development, mobile applications, and large systems development. As of 2019, 88% market share of all smartphones run on Android, the mobile operating system written in Java. Knowing Java opens a great deal of doors for you as a developer.

Take-Away Skills

In this course you’ll be exposed to fundamental programming concepts, including object-oriented programming (OOP) using Java. You’ll build 7 Java projects—like a basic calculator—to help you practice along the way.

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6- Learn CSS

Without CSS, every web page would be drab plain text and images that flowed straight down the page. With CSS, you can add color and background images and change the layout of your page — your web pages can feel like works of art!

Take-Away Skills:

You will learn many aspects of styling web pages! You’ll be able to set up the correct file structure, edit text and colors, and create attractive layouts. With these skills, you’ll be able to customize the appearance of your web pages to suit your every need!

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7- Learn C#

C# is one of the most popular programming languages and can be used for a variety of things, including mobile applications, game development, and enterprise software. Knowing C# opens a great deal of doors for you as a developer.

Take-Away Skills
In this course, you’ll be exposed to fundamental programming concepts using C# and start writing programs right away. You’ll build several projects to help you practice and test your knowledge using quizzes.

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8- Learn R

R is a widely used statistical programming language that’s beloved by users in academia and industry. R works well with data, making it a great language for anyone interested in data analysis, data visualization, and data science.

Take-Away Skills

In this course, you’ll be exposed to fundamental programming concepts in R. After the basics, you’ll learn how to organize, modify and clean data frames, a useful data structure in R. Then you’ll learn how to how to create data visualizations to showcase insights in data! Finish up with statistics and hypothesis testing to become a data analysis expert.

Note on Prerequisites:

You do not need to know how to code to enroll in this course!

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9- Learn PHP

PHP is a widely used server-side programming language that’s become increasingly fast and powerful over the years. PHP works well with HTML and databases, making it a great language for anyone interested in building dynamic web applications.

Take-Away Skills

In this course, you’ll be exposed to fundamental programming concepts in PHP.

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10- Game Development with Phaser.JS

Learn how to make Phaser games in this series of lessons, quizzes, and projects. Turn your game ideas into game realities and build on an important set of skills in this JavaScript library. Learn how to make and curate interactive experiences and deploy your games to the web!

Why Learn Phaser?

Phaser is the biggest HTML5 game development framework on the market. It has been used for browser games, mobile games, and desktop games. Learn how to use this library to make games for yourself!

Note on Prerequisites

Phaser is built in JavaScript and we will be writing JavaSript code throughout the course, so knowledge of JavaScript (especially functions and objects) will be useful. However, the course is as beginner-friendly as possible and can be attempted without any prior JavaScript knowledge. Still, if Phaser concepts and instructions seem a bit murky it might be best to take a few sections of our Introduction to JavaScript course to build conceptual knowledge.

You’ll build eight games in this course:

Color a Pegasus: a coloring book application with an eye-catching aesthetic!

Create an Adventure: a dungeon crawling text-based adventure game about a dungeon with an orc, a knight, a wizard, and you.

Bug Dodger: Avoid the cascading torrent of bugs and try to get a high score!

Bug Invaders: The bugs are descending to earth and it’s up to you to stop them!

Codey’s Cave Crisis: learn the basics of how to create the quintessential platformer!

Codey’s Counting Conundrum: Build a multi-scened game that incorporates tweens and animations.

Tundra Terror: Guide Codey through a frozen tundra brought to life through stunning visual effects.

Codey Jump: Recreate an app classic that has Codey jumping endlessly upward.

11- Learn SQL

We live in a data-driven world: people search through data to find insights to inform strategy, marketing, operations, and a plethora of other categories. There are a ton of businesses that use large, relational databases, which makes a basic understanding of SQL a great employable skill not only for data scientists, but for almost everyone.

Take-Away Skills:

In this course, you’ll learn how to communicate with relational databases through SQL. You’ll learn—and practice with 4 projects—how to manipulate data and build queries that communicate with more than one table.

12- Learn C++

40 years ago, a Ph.D. student by the name of Bjarne Stroustrup tinkered around with the C programming language, which was and still is a language well-respected for its flexibility and low-level functionality. Little did he know, he created a new language that can now be found in:

Operating systems
Web browsers
Video games
And elsewhere!

Take-Away Skills

This course will start with the fundamental programming concepts before digging deeper into the more advanced C++ topics. You will build everything from a Harry Potter Sorting Hat to a program that can censor text!

13- Livestreams

The videos in these projects are recordings of previous livestreams. Livestreams offer a unique opportunity to see experienced programmers work towards a solution, make mistakes, debug their code, and explain their thought process.

Many of the livestreams focus on an introduction of Web Development, Data Science or Coding Fundamentals.

14- Introduction to Blockchain

Blockchain is a powerful technology with applications in fields such as cryptocurrency, healthcare, insurance, government, music, identification, supply chain, data management, and many more. By understanding the fundamental mechanisms that power blockchain, you can join the conversation and discover use cases for blockchain in your own life and work.

Take-Away Skills:

In this course, you’ll learn the structure and properties of the blockchain itself and the individual blocks that make it up. You’ll understand the blockchain features that provide security between different blockchain participants. You’ll visualize different aspects of the blockchain and create and tamper with your own blocks through interactive simulations.

Notes on Prerequisites:

The majority of this course requires no prior knowledge. But, if you have some Python experience, you’ll be able to build a small blockchain library in Python, including a Blockchain class and a Block class. Add functionality to add blocks, create hashes, and verify the chain.

15- Asynchronous JavaScript

Asynchronous JavaScript can be tricky even for experienced developers, but it’s part of what makes JavaScript such a powerful and efficient programming language.

Take-Away Skills:

You’ll learn how to create and use JavaScript Promises as well as how to write clean, scalable code with the newer async_await syntax!

16- Make a Website

Everything you see on a website is a result of the combination of HTML and CSS. With these two languages, you will have the skills you need to bring your website design to life. Jumpstart that vision by using Bootstrap, a popular library that allows you to create beautiful, responsive pages with very little time and experience.

Take-Away Skills:

You’ll build four simple websites using web development fundamentals, including HTML5, CSS3 and Bootstrap. You’ll learn to understand and modify the structure of a basic website, as well as how to change the way a page looks and is laid out.

17- Introduction to Alexa

With a comprehensive understanding of the process for developing a custom Alexa skill, you’ll be prepared to publish your own program and work with other Voice User Interface (VUI) applications.

Take-Away Skills:

In this series, you will learn how to create a simple “Hello Codecademy” Alexa skill. You will build the interaction model and Amazon Lambda function that responds to a user’s voice with a personal welcome message.

Though it is not a prerequisite for most of the content in this series, a basic understanding of JavaScript will help you understand the programming logic in this course series.

18- Introduction to jQuery

With HTML and CSS, you can build visually appealing static web pages. With a bit of JavaScript, you can add dynamic behavior to these static websites. jQuery is a JavaScript library that provides you with a lot of dynamic behavior “out-of-the-box”, allowing you to add some creative effects to otherwise dull layouts.

Take-Away Skills:

You will learn how to add jQuery to web pages and how to traverse the DOM. You’ll also learn how to use effects, event handlers and style methods.

Note on Prerequisites:

There aren’t any prerequisites for this lesson, but a basic understanding of JavaScript will help you understand the programming logic.

19- Learn ReactJS: Part I

ReactJS presents graceful solutions to some of front-end programming’s most persistent issues. It’s fast, scalable, flexible, powerful, and has a robust developer community that’s rapidly growing. There’s never been a better time to learn React.

Take-Away Skills:

You’ll develop a strong understanding of React’s most essential concepts: JSX, components, and storing information via props and state. You’ll be able to combine these ideas in React’s modular programming style.

Note on Prerequisites:

A strong foundation in JavaScript is a prerequisite for this course, as well as basic HTML.

20- Learn ReactJS: Part II

ReactJS presents graceful solutions to some of front-end programming’s most persistent issues. It’s fast, scalable, flexible, powerful, and has a robust developer community that’s rapidly growing. There’s never been a better time to learn React.

Take-Away Skills:

You’ll master more essential tools that any React.js programmer is expected to know, including lifecycle methods, proptypes, basic styling, stateless functional components, and more. You will also be introduced to React.js programming patterns, and learn to set up React on your local computer.

Note on Prerequisites:

A strong foundation in JavaScript is a prerequisite for this course, as well as basic HTML. You should also understand the concepts covered in Learn ReactJS: Part I.

21- Learn Responsive Design

As a website developer, it’s your responsibility to ensure that your websites remain legible and visually appealing across a variety of devices. Using responsive design techniques increases the accessibility of your website to a much larger audience of users.

Take-Away Skills:

By the end of this course, you’ll know how to use relative units and media queries to create websites that can be viewed across devices of all sizes.

Note on Prerequisites:

We recommend that you complete Learn HTML and Learn CSS (particuarly CSS selectors and visual rules) before beginning this course.

22- Learn Sass

Sass is an easy-to-use styling language that helps reduce a lot of the repetition and maintainability challenges of traditional CSS. Learning Sass will not only let you scale styles when working on big web development projects, it will also make it much faster and more efficient to write reusable styles from scratch for smaller projects.

Take-Away Skills:

This course will teach you how to use nesting, variables, mixins, placeholders, and functions to write more expressive and reusable styles. At the end of the course, you will be able to transition a CSS codebase to SCSS and style multiple websites.

Note on Prerequisites:

We recommend you complete Learn CSS, particularly the basics of working with CSS selectors and visual rules, before taking this course.

23- Learn Express

With these skills, you’ll be able to build APIs in JavaScript and implement the CRUD (create, retrieve, update, and delete) functionality which forms the backbone of modern-day apps. If you’ve ever wondered how to make a web app back-end or are looking to pick up a new back-end framework, this is the course for you!

Take-Away Skills:

In this course, you’ll learn how to build HTTP servers in Node.js using the Express framework. Express allows you to start and configure a server with very little overhead and instead focus on the important work of defining server behavior.

You’ll learn how to create routes to implement server behavior for different HTTP methods and paths. You’ll also learn how to use Express’s most powerful features, such as routers and middleware, in order to write clean and readable server-side code.

Notes on Prerequisites:

Before you begin Learn Express, we recommend that you understand the basics of JavaSript.

24- Learn Node-SQLite

This course lays the groundwork for developing fully integrated web applications, connecting your servers to your databases. With communication between a back-end database and user-facing software, you will be well on your way to writing well-designed software for immediate publication on the internet.

Take-Away Skills:

In this course, you’ll learn how to integrate SQL into your JavaScript. Doing so will separate the concerns of database administration from those of application programming.

This delineation of responsibilities will allow you to use both languages for what they’re best at. We will learn how to perform fundamental SQL tasks—creating, reading, updating, and deleting—all within a JavaScript application.

25- Deploy a Website

Deploying—or pushing new code to a server—is an integral part of a developer’s daily workflow. Knowing the relationship between your computer (including your local development environment) and the Internet, as well as how to communicate between the two, is essential for every developer.

Take-Away Skills:

In Deploy a Website, you’ll learn how to take website content and publish it to the Internet. You’ll learn how to use Jekyll, a handy tool used frequently by developers to get new static sites quickly up and running.

You’ll also use the GitHub workflow to host your site using the GitHub Pages service. Finally, you’ll use Amazon Web Services (AWS), an industry-standard tool for developers, to purchase a custom domain name and assign it to your personal website.

26- Learn Ruby

Ruby is a general-purpose language that is still popular and in high demand in the marketplace, as it’s more commonly used in Rails applications.

Concise and readable, it is easy to pick up but also plenty powerful. Companies like Twitter, Soundcloud, Goodreads, and Kickstarter got their products off the ground with Ruby.

Take-Away Skills:

In this course, you will gain familiarity with Ruby and basic programming concepts—including variables, loops, control flow, and most importantly, object-oriented programming. You’ll get a chance to test your understanding in a final project, which you’ll build locally.

27- Learn Ruby on Rails

As one of the most powerful ways to quickly develop web applications, Ruby on Rails has a high relevance and demand in today’s marketplace. Companies like Airbnb, Fab.com, Hulu, and even Codecademy, have built their products using the Rails framework. Building with Rails also offers a good opportunity to put into practice the other skills you’ve learned so far—from implementing static webpages with HTML and CSS to using programming concepts like object-oriented programming.

Take-Away Skills:

Build 8 full-fledged web applications with Rails, one of the most popular and easy to use web application development frameworks. By the end of the course, you will be familiar with Rails core concepts, like the MVC design pattern, and how to communicate with databases to persist data. Rails is a Ruby-based framework, and builds off knowledge from the Ruby course.

28- Ruby on Rails: Authentication

Most applications out there require you to sign up. As a user, you can sign up for a service, log in, and log out when you’re done. As a creator of a web app, you probably don’t want every user to have access to every single part of the app—like customer details, security information, raw data—so you’ll want to restrict access. Rails: Authentication teaches you how to do this within a Rails application.

Take-Away Skills:

Add log in, logout, and sign-up functionality to 2 existing web applications. By the end of the course, you will know how to manage user access to your web application. This course builds off knowledge from the Learn Rails course.

29- Learn Git

Ever have an “I lost all my work and I have a deadline the next day” moment? Git is the most popular version control tool—something that developers use to save all relevant versions of their work to avoid moments like those. Git also makes it easy for developers to collaborate and share work with others!

Take-Away Skills:

Git, simply put, is a tool to save versions of your code. This course will teach you a basic workflow and Git’s core features, different ways to undo changes or save multiple versions of a project, and how to collaborate with other developers.

30- Learn the Command Line

We use our mouse and fingers to click images of icons and access files, programs, and folders on our devices. However, this is just one way for us to communicate with computers.

The command line is a quick, powerful, text-based interface developers use to more effectively and efficiently communicate with computers to accomplish a wider set of tasks. Learning how to use it will allow you to discover all that your computer is capable of!

Take-Away Skills:

By the end of the course, you will be able to navigate, access, and modify files and folders on your computer—all without a mouse!

31- Learn AngularJS 1.X

As a web developer, you’ll need to learn how to use new frameworks on a regular basis. AngularJS is a full-featured framework that is incredibly popular among developers. For single-page applications, the AngularJS framework creates rich interactive features for a real-time experience.

It’s friendly to developers and has a supportive and active community. Products built with AngularJS include YouTube Video Manager, The Weather Channel site, several Google products, and Tinder.

Take-Away Skills:

Apply your understanding of HTML and JavaScript to learn how to build single-page web applications with this popular JavaScript framework. You’ll be introduced to the Model-View-Controller (MVC) programming pattern and get a chance to build your own application from scratch by the end of this course.

Note on Prerequisites:

A strong foundation in JavaScript is a prerequisite for this course, as well as basic HTML.

32- SQL: Table Transformation

This course lets you get more sophisticated with what you can do with data. Even if you are not doing data analysis yourself, understanding what is possible is essential in today’s data-driven world.

Course Outcomes

In this course created in partnership with Looker, you’ll learn more about manipulating data stored in relational databases using SQL. You will become familiar with subqueries, set operations, conditional aggregates, and more.

33- SQL: Analyzing Business Metrics

Building on the knowledge from the Learn SQL course, this course expands on the skillset that you’ll need to be able to interact with data and run meaningful analyses.

Take-Away Skills:

In this course created in partnership with Periscope, you’ll get exposed to the basics of data analysis. You’ll go through several workflows that will allow you to dissect and understand large amounts of data.

34- Learn the Watson API

IBM Watson is one of the most powerful AI systems in the world. Learn how to plug your code into the Watson API to use its amazing functionality.

Take-Away Skills:

In this course, you’ll use Python to interact with the Twitter API and IBM’s Personality Insights API in order to analyze traits shared between two Twitter users.

35- Learn Color Design

This course will teach you to use color more effectively on your websites. It’s perfect for marketers who want to learn how the effective use of color can help them create better-converting landing pages, designers who want to learn more CSS, as well as developers who want to improve the design quality of the projects and apps that they build.

Take-Away Skills:

Practice using CSS while learning design principles, including:

primary and secondary colors
brand colors
colors that suggest UI interactions
color psychology
visual accessibility
and more!

36- Non-Technical Life Skills

A course on practical skills to help you get through life - from how to file your income tax to removing different stains, this has it all!

Why learn Non-Technical Life Skills?
Coding is amazing and versatile, but it’s not the only thing you need to know! This course fills in the gaps that will help you be happier and more effective all around.

Take-Away Skills
Making a budget
Saving for retirement
Picking health insurance
Using LinkedIn
And more!

Have you already taken any of these courses? Share your experiences with us.


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  2. hey! Please add Codeasy.net online C# course here.

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