
LeetCode
Codility
CodeSignal
iMocha
HackerEarth
Codewars
TestGorilla
HackerRank is a platform that allows companies to conduct interviews remotely to hire developers and for technical assessment purposes.

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, HackerRank seems to be a lot more popular than Raphael. While we know about 67 links to HackerRank, we've tracked only 2 mentions of Raphael.
Website, pricing, platforms and company facts side by side.
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| Website | hackerrank.com | 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
HackerRank is recommended for students, individual learners, and job seekers looking to improve their coding skills, as well as for companies seeking an efficient way to evaluate candidates' technical abilities during the hiring process.
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
Is HackerRank A Good Idea?
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NECA Teenage Mutant Ninja Turtles 1990 Movie Raphael (Gamestop Exclusive) | Video Review
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How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using HackerRank 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.


What are LeetCode and LeetCode alternatives good for?LeetCode💡Interested in leveling up your career? Apply to the Formation Fellowship...
HackerRank’s challenges cover a wide range of topics and difficulty levels, allowing developers to enhance their problem-solving skills and learn new algorithms and data structures. The competitive nature of...
HackerRank offers a wide array of challenges across various domains such as algorithms, mathematics, SQL, and functional programming. Its interface is user-friendly, and the platform provides detailed feedback on...
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.


This way, you transfer what you already know (problem-solving) but only change the syntax. Platforms like Hackerrank are also great to solve the same problem in different languages and learn from other people’s solutions. - Source: dev.to / about 1 year ago
Firstly, solve some common data structure problems with it. Implement some data structures like arrays, linked lists, stacks, queues, etc. You can check common problems on LeetCode, Hackerank or some other resources. - Source: dev.to / over 2 years ago
I don't have a consecutive internet connection and I can't keep up learning process so I started practicing in hackerrank.com I have started some challenges in python and c++ there. Thus I have no internet connection so I cannot practice... Source: almost 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
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JS library for creating graphic and interactive experiences
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Open source vector graphics scripting framework that runs on top of the HTML5 Canvas.
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