
Codecademy
Exercism
Treehouse
edX
LeetCode
Coursera
Pantheon
Achieve code mastery through challenge.

Wellfound
WeWorkRemotely
indeed
Simplify Jobs
Remote OK
LinkedIn
TopStartups.io
For people with 0-10 years experience. From engineering to sales, discover jobs & internships at London's most innovative companies.

Which is more popular?
Based on our record, Codewars should be more popular than Otta. It has been mentioned 160 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | codewars.com | otta.com |
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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
Codewars is recommended for beginner to advanced programmers who enjoy learning through practice and are interested in improving their algorithmic thinking and coding skills in a gamified environment. It is particularly beneficial for those preparing for coding interviews or seeking to reinforce their programming knowledge in a fun and interactive way.
Overall verdict
Why this product is good
Recommended for
Otta is recommended for tech professionals, recent graduates, and anyone interested in working at startups or fast-growing companies. It is particularly beneficial for those who appreciate in-depth company insights and value a streamlined job search experience.
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 Codewars and Otta. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


Edabit offers a learning experience similar to learning a new language, focusing on smaller and more frequent exercises that build proficiency over time. Like Codewars, Edabit provides many challenges that increase in...
In conclusion, while Leetcode remains a valuable resource for coders, the platforms listed above offer varied approaches to learning and improving coding skills. Whether you're drawn to the gamified learning...
This LeetCode alternative has excellent features for anyone looking to sharpen their coding skills. Codewars uses kata, which are small coding exercises that are community developed to help you master your language of...
Best for Discovering Startup CulturesOtta sets itself apart by emphasizing the importance of company culture in the job search. It tailors its job recommendations to your career aspirations, skills, and preferred...
Recommendations tracked on public social media and blogs since March 2021.


Recently, I was working on a coding kata on codewars.com. Early on, I started thinking that a potential solution might utilize recursion, a concept that involves a function calling itself. However, I quickly realized that my grasp of... - Source: dev.to / almost 3 years ago
Get more involved. Look into internships and junior SWE positions to get a sample of what you'd be applying for once you graduate. Solve coding challenges, start working on a portfolio of your personal works. I recommend codewars.com for... Source: almost 3 years ago
I'd recommend to play around with some basic coding challenges on leetcode.com or codewars.com. If the course prepared you well you won't find this useful, but playing around with them will make sure that you are comfortable with basics... Source: about 3 years ago
Otta is a relatively newer player that has taken the tech world by storm with its heavily curated approach to tech roles. - Source: dev.to / 5 months ago
Otta’s job posting platform aims to streamline the job search and provide qualified candidates with insights about companies and open jobs. Its carefully crafted user experience makes the job search as painless as possible. - Source: dev.to / about 2 years ago
I haven't used it from the hiring side, but I've seen a decent number of early stage companies using cord.co. There's also a startup called Otta - https://otta.com/. Not affiliated with either. - Source: Hacker News / over 2 years ago
When comparing Codewars and Otta, you can also consider the following products.

Learn the technical skills you need for the job you want. As leaders in online education and learning to code, we’ve taught over 45 million people using a tested curriculum and an interactive learning environment.
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Download and solve practice problems in over 30 different languages.
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Find the most qualified people in the most unexpected places: Hire remote! We Work Remotely is the best place to find and list remote jobs that aren't restricted by commutes or a particular geographic area. Browse thousands of remote work jobs today.
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Treehouse is an award-winning online platform that teaches people how to code.
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Find jobs using Indeed, the most comprehensive search engine for jobs.
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