
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.

Auth0
OneLogin
AuthAnvil
TeamPassword
WebTitan
Teramind
Gigya
Open Source Identity and Access Management for modern Applications and Services.

Which is more popular?
Based on our record, HackerRank seems to be a lot more popular than Keycloak. While we know about 67 links to HackerRank, we've tracked only 4 mentions of Keycloak.
Website, pricing, platforms and company facts side by side.
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| Website | hackerrank.com | keycloak.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?
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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 Keycloak. 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...
You can integrate Keycloak with your applications to have a single-sign-in and single-sign-out experience. Moreover, one can activate social logins without any modification in code. Additionally, it allows user...
Keycloak is a free, open-source identity and access management system with highly configurable Single-Sign-On (SSO) support.
Keycloak may be quite beneficial because it provides a built-in method for syncing with databases, such as LDAP or Active Directory, when your users already are registered on. If you use Social Login for social...
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
Most of the time nowadays, I prefer offloading this to an identity provider, using OpenID Connect or soon Federated Credential Management (FedCM), even if that means shipping an identity provider as part of the deliverables (I generally... - Source: dev.to / almost 3 years ago
Yet another breach of Okta... Why are companies not running something like keycloak [1] themselves? Are administrative/maintenance costs too high or is it plausible deniability? [1] https://keycloak.org. - Source: Hacker News / almost 3 years ago
I'd stick with a solution like https://keycloak.org in that instance. Source: over 3 years ago
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Codility provides a SaaS platform with advanced validation, security and protection features to evaluate the skills of software engineers.
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On-demand SSO, directory integration, user provisioning and more
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CodeSignal is the leading assessment platform for technical hiring.
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AuthAnvil software is an integrated identity and access management tool designed to help IT managers service their networks, infrastructure network, and ensure that devices are safe and secure at all times. Read more about AuthAnvil.
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