
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.

LibreCAD
FreeCAD
OpenSCAD
nanoCAD
DraftSight
BRL-CAD
Autodesk AutoCAD
QCAD is an application for computer aided drafting in 2D.

Which is more popular?
Based on our record, HackerRank seems to be a lot more popular than QCAD. While we know about 67 links to HackerRank, we've tracked only 5 mentions of QCAD.
Website, pricing, platforms and company facts side by side.
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| Website | hackerrank.com | qcad.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
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?
More videos
Noobs guide to QCAD
More videos
How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using HackerRank and QCAD. 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...
Since it is open source, QCAD’s focus is more towards modularity, extensibility and portability. Its 2D CAD platform is powerful but yet easy to use even for a beginner who has little to no experience in CAD...
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
For 2D design, I highly recommend QCAD (https://qcad.org/en/) I discovered it when I was preparing materials for waterjet cutting, and I was astounded at the quality of the software and its huge range of features. It's multi-platform,... - Source: Hacker News / over 1 year ago
The best software for your situation is to work with a basic 2D CAD program. You would still need to learn the software but they are pretty basic. I'm not an expert in what is free but googling I found this open source one... Source: over 3 years ago
QCAD has a free community version and professional and CAM versions for reasonable prices. Check out the features list to see which version you will need, although make sure the community version works on your system before committing to... Source: almost 5 years ago
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CodeSignal is the leading assessment platform for technical hiring.
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OpenSCAD is a software for creating solid 3D CAD objects.
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