
Codewars
Exercism
LeetCode
CodinGame
CodeCombat
HackerRank
Codecademy
CheckIO is a web site with a mission: To teach JavaScript and Python coding skills through a game-playing interface. It is designed to teach new skills or improve existing skills through completing challenges.

Jupyter
Wolfram Notebooks
Apache Zeppelin
Observable Notebooks
Zasper
SnippetsLab
Kaggle
The polyglot notebook with first-class Scala support.
Which is more popular?
Based on our record, CheckIO seems to be a lot more popular than Polynote. While we know about 46 links to CheckIO, we've tracked only 1 mention of Polynote.
Website, pricing, platforms and company facts side by side.
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| Website | checkio.org | polynote.org |
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What each product offers, as listed by its team.


Possible disadvantages
Possible disadvantages
An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
Recommended for
No analysis of Polynote yet.
Walkthroughs and reviews on video.
Intro Video. How to get maximum from CheckiO
Netflix- Polynote
How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using CheckIO and Polynote. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


CheckiO is a platform with coding games created for different levels of programmers, from beginners to advanced levels. Using fun and engaging methods, you can use coding games to solve challenges in TypeScript and...
CheckIO is available in English and Spanish. The platform was designed by a group of engineers and now has a number of customers all over the globe who may use it to improve their programming speed and abilities by...
Checkio is the most whimsical HackerRank alternative on this list. It’s also focused on two languages: Python and TypeScript. On this site you’ll be thrown into a gamer’s paradise that includes robot mollusks and...
Open-sourced by Netflix, Polynote is a notebook preferred for Scala. It supports the mixing of multiple languages in one notebook and allows easy data sharing. Since it shares the same file extension as Jupyter...
Recommendations tracked on public social media and blogs since March 2021.


Have you heard of CheckIO (https://checkio.org/)? They have a gameified "Mario world" of coding challenges that are smaller and come with more explanation, tests to guide you through edge cases and provide hints. The challenges start... Source: almost 3 years ago
Cyber isn't gonna be a light switch, where you can flip it and be good. Don't be too hard on yourself. Start with some hands on stuff like https://tryhackme.com or checkio.org. You could look at certs like Security+ or CySA+ for some... Source: about 3 years ago
Much better to get your hands dirty than watching the videos. Try: https://checkio.org/. Source: over 3 years ago
If you're looking for more modern notebooks supporting Scala (and Spark): - https://almond.sh - https://polynote.org Toree is mostly dead but might also get a Scala 2.13 release now that Spark 4.0 is approaching. - Source: Hacker News / about 2 years ago
When comparing CheckIO and Polynote, you can also consider the following products.


Project Jupyter exists to develop open-source software, open-standards, and services for interactive computing across dozens of programming languages. Ready to get started? Try it in your browser Install the Notebook.
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Download and solve practice problems in over 30 different languages.
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Powerful interactive document that supports live computation, dynamic interfaces, full typeset input, image input, automatic code annotation, high-level programmatic interface, thousands of functions and options.
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Practice and level up your development skills and prepare for technical interviews.
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A web-based notebook that enables interactive data analytics.
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