Software Alternatives, Accelerators & Startups

Codility VS Exercism

Compare Codility VS Exercism and see what are their differences

Codility logo Codility

Codility provides a SaaS platform with advanced validation, security and protection features to evaluate the skills of software engineers.

Exercism logo Exercism

Download and solve practice problems in over 30 different languages.
  • Codility Landing page
    Landing page //
    2021-07-20

The Codility platform includes:

CodeCheck - Design role-specific remote skills assessments to screen your technical candidates before moving them to the interview stage.

CodeLive - Host technical remote or onsite interviews via our shared editor using a range of templates and whiteboards.

CodeEvent - Assess thousands of candidates at a time via technical recruiting events and find the best talent faster.

  • Exercism Landing page
    Landing page //
    2023-06-28

Codility features and specs

  • Automated Assessment
    Codility provides automated coding assessments that save time for both recruiters and candidates by quickly identifying technical abilities.
  • Standardized Testing
    Codility offers standardized tests, ensuring evaluations are consistent and unbiased across all candidates.
  • Diverse Question Bank
    The platform has a large repository of coding problems that cover a wide range of topics and difficulty levels, catering to various roles and expertise levels.
  • Real-Time Code Execution
    Codility allows for real-time code execution and validation, enabling candidates to see the results of their code immediately.
  • Customizable Tests
    Recruiters can create custom tests tailored to the specific needs of their company or position, making the assessments more relevant.
  • Detailed Reports
    Codility provides detailed reports and analytics on candidate performance, helping hiring managers to make data-driven decisions.
  • Integration Capabilities
    The platform integrates with various Applicant Tracking Systems (ATS) and other HR tools, streamlining the recruiting process.

Possible disadvantages of Codility

  • Cost
    Codility can be relatively expensive, especially for small companies or startups with limited recruitment budgets.
  • Learning Curve
    There might be a learning curve for both recruiters and candidates to get accustomed to the platform and its features.
  • Language Limitations
    While Codility supports multiple programming languages, some niche or less commonly used languages may not be available.
  • Potential Stress for Candidates
    Automated assessments can induce stress for candidates, which might not accurately reflect their true abilities in a real-world setting.
  • Internet Connection Dependency
    A stable internet connection is required to complete assessments, which can be a limitation in areas with unreliable internet access.
  • Limited Collaboration Features
    Codility's focus on individual assessments means it has limited support for evaluating collaborative or team-based coding skills.
  • Algorithm Focus
    The platform often emphasizes algorithmic problem-solving, which may not fully represent the day-to-day coding skills required for certain positions.

Exercism features and specs

  • Free Access
    Exercism provides free access to a wide range of coding exercises and learning resources, making it accessible to everyone regardless of their financial situation.
  • Mentorship
    Offers personalized mentorship from experienced developers who can provide feedback and guidance on your code submissions.
  • Wide Variety of Languages
    Supports numerous programming languages, which allows users to learn and practice coding in multiple languages.
  • Structured Learning Tracks
    Organizes exercises into structured tracks, guiding learners through progressively challenging problems in a logical order.
  • Community Support
    Has an active community forum where users can discuss problems, share insights, and ask for help.
  • Open Source Contributions
    Encourages contributions to the platform itself, offering an opportunity for users to give back and improve the resources available to others.
  • Focus on Clean Code
    Emphasizes writing clean, well-documented code, which is beneficial for developing best practices.

Possible disadvantages of Exercism

  • Variable Mentorship Quality
    The quality of mentorship can vary, as it depends on the availability and expertise of volunteer mentors.
  • Learning Curve
    There can be a steep learning curve for beginners who may find some exercises too challenging without sufficient initial guidance.
  • Limited Interactivity
    Exercises are primarily text-based without interactive or visual learning aids, which might be less engaging for some users.
  • Dependence on Volunteers
    The platform relies heavily on volunteer mentors, which can lead to delays in getting feedback and may affect the consistency of support.
  • Interface Complexity
    Some users find the interface and workflow somewhat complex and unintuitive, particularly for those new to the platform.
  • No Real-Time Collaboration
    Lacks real-time collaboration features, meaning users cannot code together or get instant feedback.
  • Focus on Individual Learning
    The platform predominantly focuses on individual learning rather than collaborative projects, which can be a downside for those looking to develop team-working skills.

Codility videos

An Introduction to Codility: The Tech Hiring Platform for Engineering Teams

Exercism videos

Learn with Exercism.io

More videos:

  • Review - JavaScript Exercise | Learn JavaScript with Exercism | #0 Setup
  • Review - exercism.io 01 hello-world

Category Popularity

0-100% (relative to Codility and Exercism)
Hiring And Recruitment
100 100%
0% 0
Online Learning
26 26%
74% 74
Online Education
29 29%
71% 71
Online Courses
0 0%
100% 100

User comments

Share your experience with using Codility and Exercism. For example, how are they different and which one is better?
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Reviews

These are some of the external sources and on-site user reviews we've used to compare Codility and Exercism

Codility Reviews

Examining Top 22 Alternatives to LeetCode
Codility is a platform that helps companies assess the coding skills of developers. They offer a range of online coding tests and assessments that enable employers to evaluate candidates' technical abilities.
Source: www.inven.ai

Exercism Reviews

LeetCode Alternatives: Top platforms for coding practice
What are LeetCode and LeetCode alternatives good for?LeetCode💡Interested in leveling up your career? Apply to the Formation Fellowship today!ApplyHackerRankCodeSignalAlgoExpertCodewarsGeeksforGeeksEdabitExercismTopCoderShould you use LeetCode for advanced interview prep?Get holistic interview prep with Formation
Source: formation.dev
8 Best LeetCode Alternatives and Similar Platforms
Exercism is the alternative to LeetCode learning platform, with over 4000 activities in up to 52 popular programming languages. It is very different from other comparable programming websites in that it emphasizes solo practice and also mentor-based learning. The greatest part about this software is to have an active developer community that assists novices all around the...
The 10 Most Popular Coding Challenge Websites [Updated for 2021]
Exercism is a coding challenge website that offers 3100+ challenges spanning 52 different programming languages. After picking a language that you'd like to master, you tackle the coding challenges right on your machine (Exercism has their own command line interface that you can download from GitHub).
Top 25 websites for coding challenge and competition [Updated for 2021]
Best qualities: Exercism starts off with language tracks that allow users to choose their preferred languages. Moreover, there are human mentors who will check your code and help you improve as you progress. This makes the platform perfect for total beginners who want to deepen their understanding of a new programming language.

Social recommendations and mentions

Based on our record, Exercism seems to be a lot more popular than Codility. While we know about 314 links to Exercism, we've tracked only 2 mentions of Codility. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

Codility mentions (2)

  • How to Hire Mobile App Developers
    - Technical skills: have they got the walk to match the talk? Programming languages on a resume mean little if candidates are unable to demonstrate their hard coding skills. You can test these skills with technical skill tests, such as the ones created by Codility or HackerRank. - Source: dev.to / about 1 year ago
  • Best Websites Every Programmer Should Visit
    Codility : Verify and improve coding skills. - Source: dev.to / about 4 years ago

Exercism mentions (314)

  • Ask HN: What book should my CS1 students read?
    (concepts/topics) : The New Turing Omnibus, 66 Excursions in Computer Science[1] Code Complete [2] Debugging The 9 Indispensable Rules of Finding Even the Most Elusive Software and Hardware Problems [3] Code: The Hidden Language of Computer Hardware and Software [4] -- backround stories on how 'computer' things came to be -------- [1] : https://www.amazon.com/New-Turing-Omnibus-Sixty-Six-Excursions/dp/0805071660... - Source: Hacker News / 12 days ago
  • Build Code-RAGent, an agent for your codebase
    The only thing left to do then was to build something that could showcase the power of code ingestion within a vector database, and it immediately clicked in my mind: "Why don't I ingest my entire codebase of solved Go exercises from Exercism?" That's how I created Code-RAGent, your friendly coding assistant based on your personal codebases and grounded in web search. It is built on top of GPT-4.1, powered by... - Source: dev.to / 17 days ago
  • I Finished The Odin Project's Foundation Track
    This is where sources like freeCodeCamp or Scrimba absolutely shine. With Odin, you read an article and may follow along with examples. But it’s unlikely you develop the muscle memory to implement the concepts on your own. Odin does offer some in-house exercises and often assigns external ones too. Still, I believe it’s not enough. You don’t lift weight only 5 times and say I’ve got this! You keep lifting until... - Source: dev.to / 3 months ago
  • Exercism 48in24 Recap
    If I get the time I would very much like to share my notes on adopting the various languages and perhaps even my solutions to some of the exercises. I have some reservations to doing the latter, since it does spoil the fun of solving the exercises for you. I have made some basic tooling which could be of interest/inspiration to you if you are in on Exercism. - Source: dev.to / 3 months ago
  • Ask HN: Platform for senior devs to learn other programming languages?
    I think you are looking for Exercism: https://exercism.org/ Great website! - Source: Hacker News / 6 months ago
View more

What are some alternatives?

When comparing Codility and Exercism, you can also consider the following products

HackerRank - HackerRank is a platform that allows companies to conduct interviews remotely to hire developers and for technical assessment purposes.

Codecademy - 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.

CodeSignal - CodeSignal is the leading assessment platform for technical hiring.

Free Code Camp - Learn to code by helping nonprofits.

iMocha - Make intelligent talent decisions.

Treehouse - Treehouse is an award-winning online platform that teaches people how to code.