
Jupyter
replit
Kaggle
Infosec Skills
Numerai
Explorium
DataSource.ai
Free Jupyter notebook environment in the cloud.

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.

Which is more popular?
Based on our record, Colaboratory should be more popular than HackerRank. It has been mentioned 232 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | colab.research.google.com | hackerrank.com |
| 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
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.
Walkthroughs and reviews on video.
How often each product is chosen within a category, 0–100% relative to the other.


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


Google Colaboratory (known as Colab) is a browser-based notebook created by the Google team. The environment is based on the Jupyter Notebook environment, so it will be recognizable to those of you who are already...
Microsoft Azure Notebooks is a cloud-based platform for data science projects and machine learning that is similar to Google Colab and Kaggle Notebooks. It provides access to powerful hardware resources, including...
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...
Recommendations tracked on public social media and blogs since March 2021.


Now start a new Jupyter Notebook. If you don’t have Jupyter Lab installed locally, you can use Google Colab, which provides a free cloud notebook environment. Install the required Python packages:. - Source: dev.to / 6 months ago
Go to https://colab.research.google.com and create a new Python notebook. - Source: dev.to / 10 months ago
Google Colab: Free, cloud-based notebook that comes with Python and Pandas pre-installed. - Source: dev.to / 10 months ago
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
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