
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.

D3.js
p5.js
Paper.js
Highcharts
Snap.svg
Google Charts
RAWGraphs
Raphael.js is an Object Oriented drawing library. It is good at making in-depth diagrams with complex interactions.

Which is more popular?
Based on our record, CheckIO seems to be a lot more popular than Raphael. While we know about 46 links to CheckIO, we've tracked only 2 mentions of Raphael.
Website, pricing, platforms and company facts side by side.
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| Website | checkio.org | dmitrybaranovskiy.github.io |
| Pricing | — | |
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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
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
Intro Video. How to get maximum from CheckiO
NECA Teenage Mutant Ninja Turtles 1990 Movie Raphael (Gamestop Exclusive) | Video Review
More videos
How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using CheckIO and Raphael. 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...
Raphaël is a small JavaScript library that should simplify your work with vector graphics on the web. If you want to create your own specific chart or image crop and rotate widget, for example, you can achieve it...
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
You could also directly use libraries like Raphael or D3(lots of the tools around use D3.js as their core rendering library) if you just want help with drawing the SVG elements and connectors ... That is, if you're going to pull the data... Source: almost 5 years ago
In those darker times I used Raphaël to build charts and drag-drop UIs. Maybe check it out? Source: about 5 years ago
When comparing CheckIO and Raphael, you can also consider the following products.


D3.js is a JavaScript library for manipulating documents based on data. D3 helps you bring data to life using HTML, SVG, and CSS.
Compare D3.js to CheckIO or Raphael:

Download and solve practice problems in over 30 different languages.
Compare Exercism to CheckIO or Raphael:

JS library for creating graphic and interactive experiences
Compare p5.js to CheckIO or Raphael:

Practice and level up your development skills and prepare for technical interviews.
Compare LeetCode to CheckIO or Raphael:

Open source vector graphics scripting framework that runs on top of the HTML5 Canvas.
Compare Paper.js to CheckIO or Raphael: