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exercism.org
All
4
Experiences
Pros
2
Cons
1
Specs
Top
Pro
Human review and feedback
Rather than merely test for code correctness, Exercism uses peer review to improve general programming techniques. Users are encouraged to comment on others' solutions, and refine their own based on feedback.
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Top
Con
Custom commandline client
Exercism requires using a CLI utility to fetch and submit exercises. This is inconvenient compared to web-only alternatives, and poses an additional barrier to entry for some users.
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Top
Pro
Practice with production tools
Unlike many code practice websites, Exercism requires the user to develop and test entirely offline, submitting only the finished code. This promotes familiarity with essential tools and workflow, not just the bare language.
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Specs
Languages:
Bash, C, C++, C#, Clojure, Dart, Elixir, Erlang, Go, Java, JavaScript, Kotlin, Python, Ruby, Rust,TypeScript
Features:
Exercises
Hide
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here
178
22
freeCodeCamp
All
16
Experiences
Pros
9
Cons
6
Specs
Top
Pro
Completely free
Free for anyone who wants to take the camp.
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Top
Con
No longer offers opportunity to build projects one-on-one with nonprofits
There are no nonprofits to help upon completing the program.
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Top
Pro
Open source
Due to freeCodeCamp being open source, you are able to contribute to the program that helped teach you how to code in the first place. It's a great way to give back and gain experience.
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Top
Con
Learning material is not in-depth
The teaching content provided by freeCodeCamp tends to act more as an introduction than a solid learning resource. Unless you already have some prior experience, you won't have enough knowledge to get through the coding challenges and development projects without using outside learning resources to fill in the gaps.
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Top
Pro
Self-paced
There is no set schedule with freeCodeCamp. You can work through the program as fast or as slow as you want.
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Top
Con
Massive time waste
Content mainly focuses on trivial concepts and is very sparse in those few areas that inch beyond 'complete beginner'.
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Top
Pro
Browser-based
All courses used by freeCodeCamp are done in the browser, rather than students having to set up their own environment. This makes it much easier for beginners to get started.
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Top
Con
Is an email list generator
Early focus isn't on programming. It is on signing up for all of FreeCodeCamp's social media and getting looped into their newsletters. The content is trivial. It is all just a massive marketing scheme to get email addresses of aspiring programmers to affiliate sell to by pushing novice developers to blog posts containing affiliate links. That is until they sell to a 3rd party. Read their disclaimer. Whoever buys them out gets all their user data, email lists, etc.
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Top
Pro
Actively developed
They are frequently updating courses and adding new material.
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Top
Con
No offline version
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Top
Pro
Welcoming, active community
freeCodeCamp strongly encourages interacting with other learners and experienced programmers. They provide chatrooms which are always active and full of members happy to answer any questions you may have. Pair programming (programming with another user) is encouraged as a great way to work through some of their coding challenges. There are also meetup groups where you can code in person with other freeCodeCamp students.
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Top
Con
Excessive focus on the basics
This platform focuses too much on the basics.
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Top
Pro
Six certificates available
There are currently six certificates available that you can get once you've completed all the projects: Responsive Web Design Certification Javascript Algorithms And Data Structures Certification Front End Libraries Certification Data Visualization Certification Apis And Microservices Certification Information Security And Quality Assurance Certification
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Top
Pro
Gain real world experience while helping nonprofits
Once you've completed all the courses and practice levels on freeCodeCamp, you are able to participate with other learners on developing software for non-profits. It's an amazing way to gain experience and build your portfolio as a developer, while helping out a non-profit organization.
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Top
Pro
Full stack certificate
There is a cool Full stack certificate
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Specs
Languages:
HTML, CSS, JavaScript, Python
Features:
Projects, chat, exercises, written tutorials, video tutorials, progress saver
Hide
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Experiences
Free
317
28
Codewars
All
7
Experiences
Pros
5
Cons
1
Specs
Top
Pro
Challenges cover all areas of programming
Algorithms, OOP, functional programming, you name it - there's a challenge class for it and in just about every language.
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Top
Con
Require some coding knowledge
You require some coding knowledge to get an account with code wars. The topics are limited
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Top
Pro
Submit your own challenges
If you think you have a good idea for a challenge that could be added to the dojo then go add it and get feedback.
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Top
Pro
Multi-language support
Users can complete code challenges in over 12 different languages.
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Top
Pro
Learning gamification
Get points and increase your level by completing coding challenges.
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Top
Pro
Free
Codewars is completely free to use.
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Specs
Languages:
BF / C / C++ / C# / Clojure / CoffeeScript / Crystal / Dart / Elixir / Erlang / F# / Go / Haskel / Java / JavaScript / Lua / Nim / Objective-C / OCaml / PHP / Python / R / Ruby / Rust / Shell / SQL / Swift / TypeScrypt
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Experiences
Free
27
5
Code School
All
11
Experiences
Pros
6
Cons
4
Specs
Top
Pro
Practice the code after each video 
After each video, there are a series of challenges that give you a chance to apply what you just learned. The great thing about these challenges are that they force you to think through a problem, and use the new skills to solve it. It's not just regurgitating facts; it requires some effort.
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Top
Con
Acquired by Pluralsight
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Top
Pro
Paths for learning different skills 
While you can jump into any video you like, there is also the option to follow a path for what you are wanting to learn. These give a nice direction if you are wanting to improve on a particular area and guide you into what to do next. They currently offer Ruby, Javascript, HTML/CSS, and iOS.
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Top
Con
Videos are of a tone that some people cannot stand
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Top
Pro
Videos show how to build an app in real time
Soup to Bits is a series of videos that shows a developer creating an app from scratch in real time. It's easy to pause a video and follow along with the developer.
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Top
Con
Requires paying to complete courses 
Although the beginning of each course is free and you can see if you are interested in pursuing it, to complete the course you must pay.
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Top
Pro
Video tutorials 
Videos give an overview of the course/lesson plan before a single line of code is written. This gives context and a general understanding of what is possible and how teaching will be approached.
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Top
Con
A bit too basic
There is not a lot of advanced content.
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Top
Pro
Fun and engaging teaching style
The instructors often use humour throughout the videos while letting their passion for the topic show.
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Top
Pro
In-depth courses
Code School is not just for beginners to programming, but provides plenty of intermediate and advanced courses for students as their skills grow.
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Specs
Languages:
C#, HTML, CSS, JavaScript, Ruby, SQL, Objective-C
Features:
Editor, video tutorials, progress saver, forum
Hide
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Experiences
Paid
75
12
The Odin Project
All
4
Experiences
Pros
2
Cons
1
Specs
Top
Pro
Build a portfolio as your learn
The Odin Project is a project-based curriculum which means you are able to build projects for your portfolio as you work through the sections.
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Top
Con
Light on CS
The Odin Project touches on computer science concepts, such as data structures. However the explanations are quite light and something you'll want to learn more about from other resources.
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Top
Pro
Free and open source
The Odin Project is a completely free and open source alternative to coding bootcamps.
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Specs
Languages:
HTML, CSS, Ruby, JavaScript
Features:
Projects, written tutorials
Hide
Get it
here
75
2
Codecademy
All
13
Experiences
Pros
6
Cons
6
Specs
Top
Con
Not the best structure for quick refreshers
The content of the lessons is aimed very much at people just starting to learn how to code. This is perfect for beginners but if you want to use Codecademy to refresh your knowledge the lessons are not designed to be quickly done.
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Top
Pro
Interactivity
Right from the start, users write code. They start small in an environment that has constant feedback and gradually progress to more complex concepts. Users can see code results instantly, giving great feedback.
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Top
Con
Lack of context 
Codecademy is great for providing a hands-on approach, but there is a lack of context regarding how to start a project in real life. While users may learn how to code using Codecademy's interface, they may not have any idea how to code independently.
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Top
Pro
Excellent progression 
Codeacademy doesn't overwhelm beginners with information. It gives bite-sized information, the bare minimum needed to finish a task and get to the next one. As the course progresses, it slowly fills in background information.
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Top
Con
Sticks to pretty basic
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Top
Pro
Good editor 
Codeacademy has a powerful, beginner-friendly integrated development environment (IDE) that can also be used outside of curriculum.
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Top
Con
Deleted a lot of content
A lot of free content has been taken away, for example the PHP course was removed from the site.
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Top
Pro
Bite-sized lessons
Each lesson in code-academy focuses on a single concept, and repetition is provided to drill the concept.
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Top
Con
Buggy
Codecademy is known to have many bugs which interfere with the editor, resulting in error messages despite having the correct answer.
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Top
Pro
Mostly free content & best progression series for beginners
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Top
Con
Allows infinite loops to run
If you run an infinite loop, the browser freezes. Many other similar websites will give you an error, preventing the loop from running. Though not a bug, the lack of feature to stop infinite loops from running can be quite frustrating to beginners.
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Top
Pro
Community forums
It has forums which can be used to discuss with other learners
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Specs
Languages:
HTML, CSS, JavaScript, jQuery, Ruby, Python
Features:
Code editor, forum, progress saver, written tutorials
Hide
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Experiences
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239
44
edX
All
9
Experiences
Pros
5
Cons
3
Specs
Top
Pro
Free 
Both edX and the classes are free.
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Top
Con
Lack of engagement in the forums
edX does not have the same forum participation from both students and instructors that other websites do, and the form of engagement often does not encourage discussion.
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Top
Pro
Offers courses from well known schools
edX offers courses from a wide range of well known colleges and universities including Harvard, MIT, UC Berkeley, Cornell and more.
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Top
Con
Courses aren't always available
While edX does offer some self-paced courses, you may end up waiting for the course of your choice to be run.
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Top
Pro
Large selection of science courses
edX offers a wide variety of science-related courses. This makes it a great resource for learning not only specific programming languages, but also other topics relating to computer science.
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Top
Con
The forums are difficult to navigate
The forums are difficult to sort by date and topic, and are unintuitive to navigate.
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Top
Pro
A lot of topics (subjects) 
Topics include biology, business, chemistry, computer science, economics, finance, electronics, engineering, food and nutrition, history, humanities, law, literature, math, medicine, music, philosophy, physics, science, statistics and more.
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Top
Pro
Offer certificates for some courses 
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Specs
Languages:
Computer languages, Mandarin Chinese, Spanish, Italian, Japanese, English, Russian, French
Features:
Forum, video tutorials, written tutorials, projects
Hide
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Experiences
Free / paid
64
3
Khan Academy
All
5
Experiences
Pros
3
Cons
1
Specs
Top
Pro
Free
Khan Academy is 100% free and does not require you to sign up in order to access the courses.
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Top
Con
Limited programming courses
The programming courses are not in-depth, giving students only a basic knowledge of programming. The language choices are also limited (HTML, CSS and JavaScript).
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Top
Pro
Motivation through gamification
Users collect badges and points through completing missions, watching videos, adding comments and more.
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Top
Pro
Q & A Section
There is a Q & A section after every video where you can ask questions there and let other users answer them.
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Specs
Languages:
HTML, CSS, JavaScript
Features:
Editor, progress saver, video tutorials, written tutorials
Hide
Get it
here
73
7
Udacity
All
9
Experiences
Pros
7
Cons
1
Specs
Top
Pro
Courses taught by industry professionals
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Top
Con
Nanodegrees are expensive
Udacity is quite expensive at $200/month if you want to do a nanodegree.
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Top
Pro
All courses are self-paced
Courses are always made available which means there is no waiting for the specific course you want to run. You can work through the courses as fast or as slow as you want.
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Top
Pro
Offers Nanodegrees
Udacity offers a few different Nanodegrees which provide access to various different courses, project reviews and coaching support for $200/month. Current options include Front End Web Developer, Data Analyst and Android Developer. See the full list here.
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Top
Pro
Courses are easy to understand
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Top
Pro
Actual feedback on coding projects
You get actual feedback from developers on your code, which is useful. Yes having your sites/apps do what it is supposed to do is important, but you need feedback to learn industry standards/best practices and other gotchas that are much harder to learn on your own.
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Top
Pro
Language that is easy to understand
Courses are super easy to follow, even for super dummies.
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Top
Pro
Worth the investment
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Specs
Languages:
HTML, CSS, JavaScript, Java, Python, Swift, SQL, R
Features:
Editor, progress saver, forum, video tutorials
Hide
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Experiences
Get it
here
103
13
Hackr.io
All
3
Experiences
Pros
3
Top
Pro
Community trust
Instead of getting a recommendation from a single dev, you get recommendation from the entire programming community.
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Top
Pro
Recommendation for every programming language/framework/library
You can find Python as well as Jenkins.
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Top
Pro
Nice filters
Free, Video, Book, Beginner, Advanced, etc.
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Hide
0
45
0
Code Combat
All
3
Experiences
Pros
2
Cons
1
Top
Con
Only basic concepts are taught
To learn JavaScript past the basics, additional resources will be required.
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Top
Pro
A fun introduction to JS syntax and logic
Code Combat teaches you JavaScript through a game. It's a fun and engaging way to learn the basics.
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Top
Pro
It has the ability for teachers to manage a class
Student progress can be seen allowing teachers to let students work at their own pace and see who might need help or who is doing excellent.
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4
1
W3Schools
All
9
Experiences
Pros
4
Cons
5
Top
Pro
Easy to learn
All the tutorials are written in a straightforward and easy to understand way.
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Top
Con
Outdated practices / problem solutions
The practices that are shown to solve the problems at hand are rarely, if at all, updated. Usually, their tutorials and learning material is updated only after they see their profits drop.
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Top
Pro
Built in editor
Almost every example has a "try it yourself" button which opens up an editor in a new tab. It allows you to play with the example code and see how it works.
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Top
Con
Doesn't care about teaching right
There are multiple errors in the data they show. Although the solutions they show work, they will lead to unmaintainable code. That happens even when the maintainable code alternatives are as easy or accessible to new programmers as the alternatives.
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Top
Pro
Well organized tutorials
All of the lessons are separated into their own pages, which makes it easy to learn about specific concepts.
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Top
Con
Certifications not recognized
Many professionals in IT agree that w3s certifications are not recognized by them and are deemed useless. Good luck finding any respectable professional that accepts a w3s certification.
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Top
Pro
Great source from Google search's perspective
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Top
Con
It is for profit
What defines what goes is and what gets fixed on w3schools is what gives them profit and what doesn't (through their ads system).
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Top
Con
Written tutorials only
While many learning resources offer a mixture of media in their courses (such as videos, challenges etc.), w3schools offers only written tutorials and code editors. This makes w3schools more beneficial as a quick reference rather than a primary learning resource.
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Hide
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Experiences
Get it
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53
21
30 seconds of code
All
5
Experiences
Pros
4
Cons
1
Top
Pro
Short and sweet
Main selling point of the project is that you can learn some useful techniques and tricks in 30 seconds or less.
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Top
Con
Not production-ready
A few of the code examples are not ready for production, but they can easily be made into production-ready methods with some tweaks. The library has a stable release as of August 2018.
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Top
Pro
Lots of examples
Over 300 code snippets.
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Top
Pro
ES6
Uses the latest stable features of ES6 to teach developers how to write modern code.
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Top
Pro
Functional-style code
The project's code examples follow best practices for functional programming.
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FREE
15
0
CodinGame
All
3
Experiences
Pros
3
Top
Pro
Primary focus is learning, education, and fun
Many of the other programming challenge websites focus on competition or job placement. Codingame, however, focuses on improving your skills through pure gamified education.
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Top
Pro
Large community and support network
The community is a large part of Codingame's platform and the social features are well integrated into the platform. Reaching out for help, when and if needed, is very easy.
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Top
Pro
Consistently updated with new content
There are always new challenges, mini-games, and competitions to be found on the site. It would be a challenge in-itself to find yourself without anything to do.
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13
0
LiveEdu.tv
All
6
Experiences
Pros
5
Specs
Top
Pro
Live educational projects and tutorials
You can learn about programming, game development, design and more from best tech minds
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Top
Pro
Large variety of courses
Courses on software development, VR, AR, 3D modeling, and much more.
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Top
Pro
Learn live from top tech minds
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Top
Pro
Stream your own projects
You can stream & monetize your own projects as a broadcaster.
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Top
Pro
Amazing platform for networking
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Specs
Languages:
PHP, JavaScript, C-C++, HTML-CSS, Java, Python, Unity, Ruby, Laravel, & more
Features:
Livestreams, Projects, Tutorials, Live Forum, Chat, Download project files & videos, 24h customer support
Special Offer:
-5% OFF on Pro Account - Coupon Code: JULIA2017-Discount
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11
0
CheckiO
All
5
Experiences
Pros
4
Cons
1
Top
Pro
Community backed solution reviews
Users can publish their solutions for different problems and other users can review the code and give their opinions on how they would have solved the problem. Sometimes, some of the most active users get their code reviewed by Guido Van Rossum (the creator of the Python language) himself.
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Top
Con
Not for absolute beginners
CheckiO does not teach syntax, instead it teaches how to solve problems using a particular programming language therefore some basic programming knowledge is required to start.
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Top
Pro
Available in multiple languages
CheckiO crowdsources translations for problems. Currently problems have been translated in 10 languages. So it's highly possible that eventually more languages will be supported.
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Top
Pro
Ability to create new challenges
New missions can be created and uploaded using GitHub. After that is done, it's suggested to CheckiO and if it fills all the requirements after being reviewed by a CheckiO team member, it's pulled into the game.
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Top
Pro
Challenges from GitHub, O'Reilly, Dropbox and Hubspot.
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6
0
Dash
All
3
Experiences
Pros
2
Cons
1
Top
Con
Requires you to sign up for information
The Dash website provides very little information and requires you to sign up with your e-mail if you want to learn more (such as cost).
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Top
Pro
Real-time editor 
The result of what you write shows next to your code in real-time.
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Top
Pro
Slideshows 
Slideshows explain concepts and show the final result of given task without taking you out of the moment.
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6
0
Platzi
All
6
Experiences
Pros
4
Cons
1
Specs
Top
Pro
Focuses on skill development
Platzi designs their courses in a way that will teach you tangible skills and encourages you to apply them right from the start.
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Top
Con
Many courses are only offered in Spanish
Platzi originally launched as Mejorando.la, an educational resource offering all courses in Spanish. They have since rebranded and now offer courses in both English and Spanish, however their English courses are currently still limited.
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Top
Pro
High course adherence
By focusing on teaching tangible skills, Platzi has a 70% adherence rate to their courses compared to the 20% of other online courses.
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Top
Pro
Live streaming classes
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Top
Pro
Courses taught by industry leaders
Platzi has a few courses available taught by well known industry leaders such as Y Combinator President Sam Altman.
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Specs
Languages:
Ruby / JavaScript / PHP
Features:
Video tutorials / written tutorials / progress saver / editor / projects
Hide
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6
0
Codeasy
All
8
Experiences
Pros
5
Cons
2
Specs
Top
Pro
The "reading story" approach is interesting and helps to start in programming
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Top
Con
Has only one programming language
Only has a C# track.
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Top
Pro
Really good explanation of the topics
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Top
Con
Covers only basics
It would be nice if this tutorial would cover more in depth C# topics.
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Top
Pro
Step-by-step tutorials
The fundamental theory is represented systematically, from the basic things to more complicated as a whole adventure story.
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Top
Pro
Unique approach to tech stuff learning
No cold theory, fun way to learn coding.
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Top
Pro
Slack for Help
Deeper explanation about the course tasks directly on Slack.
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Specs
Languages:
C#,Python
Features:
Code editor, exercises, story based education
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Experiences
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44
2
Learn Java
All
5
Experiences
Pros
3
Cons
1
Specs
Top
Pro
Browser-based
Learn Java provides an editor right on the web page where you can practice your code and follow along with the tutorial.
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Top
Con
Editor not easily adjustable
The code editor at the bottom of the page, where you follow along with the tutorial, is fairly small and provides no way to adjust the size.
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Top
Pro
Free
Learn Java is completely free to use and will always be free.
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Top
Pro
Simple interface
The interface is very straight-forward and well layed out.
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Specs
Languages:
Java
Features:
Editor / written tutorials
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5
0
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