Codility Reviews & Product Details

Codility is a technical assessment platform built on documented assessment science. It helps engineering and talent teams evaluate technical skills for hiring and map verified capabilities across existing workforces. Every assessment is designed by occupational psychologists, validated against an Engineering Skills Model drawn from 30+ international frameworks, and monitored for adverse impact at every measured cut score. AI has changed how engineering teams deliver. Organizations need signal on who can build in this environment, backed by methodology that holds up when questioned. Codility provides that signal across three workflows: screening candidates with validated technical assessments, running structured live technical interviews, and verifying skills across internal engineering teams. For screening, Codility provides a task library of 1,200+ validated assessments covering real-world work simulations, algorithmic challenges, SQL, and project-based tasks across 80+ languages and frameworks including Python, Java, JavaScript, TypeScript, C#, Go, Rust, Kotlin, React, Angular, Vue.js, Spring Boot, Django, Terraform, Kubernetes, and TensorFlow. Scoring is automated on supported task types with detailed candidate comparison, configurable time limits, and role-specific weighting. Assessments are reviewed by occupational psychologists and follow documented methodology with auditable scoring. For live technical interviews, the platform provides a shared VS Code environment with terminal access, sidecar services for databases, caching, and message queues, a collaborative whiteboard, and full session transcript and recording. Engineering teams evaluate candidates in a real development environment. Talent teams get a repeatable process with rubric scores and session playback after every interview. Organizations control how AI is handled in every assessment. Teams set their AI posture role by role: provide candidates with a monitored AI assistant and review how they prompt, evaluate, and debug with AI, or restrict AI access to evaluate core technical skills independently. Both approaches use the same set of controls and produce a reviewable record of all AI activity. One platform supports AI collaboration assessment and unassisted evaluation with full auditability. Integrity controls are layered to support defensible hiring decisions. These include identity verification, behavioral signals, risk scoring, similarity detection, paste volume measurement, and automated follow-up questions designed to verify understanding. Follow-up questions are deliberately not scored, to avoid introducing bias. When AI is enabled, reviewable AI activity helps teams distinguish between a candidate's own work and AI-assisted output. All signals produce a defensible record for human review. Skills Intelligence provides verified technical skills visibility for existing engineering teams. Organizations use it to identify capability gaps, benchmark skills across teams, and support workforce planning with assessed data rather than self-reporting. Hiring assessment and internal skills verification share the same validated methodology, giving organizations one assessment science foundation across the full talent lifecycle. Codility is SOC 2 audited, ISO 27001 certified, GDPR and CCPA compliant, WCAG 2.1 AA accessible, and aligned with EU AI Act requirements for high-risk AI classification. Assessments follow documented methodology structured to APA Standards, with a 76-page Technical Manual, adverse impact data at every cut score, and an explicit posture: no AI or ML is used in automated hiring decisions. Data is hosted in either EU or US regions. The platform integrates with 20+ applicant tracking and scheduling systems (ATS) including Greenhouse, Workday, SAP SuccessFactors, iCIMS, SmartRecruiters, Lever, Eightfold, and Ashby, with 80+ HRIS integrations for Skills Intelligence. It supports SSO via SAML 2.0 and offers API access for custom workflows. Founded in 2009, Codility is used by engineering and talent teams at Barclays, BMW, Deutsche Bank, GitHub, Samsung, SpaceX, and other organizations evaluating technical skills across both AI-assisted and traditional engineering workflows.

Product Website

Seller

Codility Ltd

Discussions

Codility Community

Languages Supported

German, English, French, Japanese, Korean, Polish, Portuguese, Russian, Spanish, Chinese (Simplified)

Overview by

Lindsey Ludwick (Denver GMT-7)

Value at a Glance

Averages based on real user reviews.

Time to Implement

2 months

View More Pricing Information

Codility Integrations

(19)

Verified by Codility

Codility Media

Codility Demo - Candidate Results Dashboard

See how candidates performed across technical tasks, with scoring breakdown, integrity risk bands, and side-by-side comparison to support defensible hiring decisions.

Codility Demo - Live Technical Interview Environment

Conduct structured technical interviews in a shared VS Code environment, complete with terminal, sidecar services, and whiteboard in one view.

Codility Demo - Assessment Builder and Task Library

Build role-specific assessments from a library of 1,200+ validated tasks. Filter by skill, difficulty, and role to match real engineering work.

Codility Demo - Integrity Controls and Risk Scoring

Review candidate integrity signals in one place: risk scoring, behavioral monitoring, paste volume, and reviewable evidence for every submission.

Codility Demo - Team Skills Coverage and Proficiency

See verified skill distribution across an engineering organization and its individual teams, with proficiency levels, coverage, and experts identified across languages, technologies, and skills.

Codility Demo - AI Posture Control by Assessment

Set AI posture per assessment: enable, restrict, or monitor AI tool use. Reviewable AI activity logs give hiring teams the context to evaluate each candidate fairly.

Official Downloads

(2)

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John Harold B.

Lead .Net Engineer

Computer Software

Small-Business (50 or fewer emp.)

12/18/2025

Guest users or non-business users of the software, not included in G2 scores.

"Awesome tool to test practical programming knowledge"

4.5/5

What do you like best about Codility?

The IDE is similar to any desktop IDE, this help to code easy. Review collected by and hosted on G2.com.

What do you dislike about Codility?

Sometimes the intellisense does not work. It's not ok because in any case programming is almost always with intellisense at 100%. Review collected by and hosted on G2.com.

Mohit U.

Student

Small-Business (50 or fewer emp.)

5/30/2024

Guest users or non-business users of the software, not included in G2 scores.

"Codility"

4.5/5

What do you like best about Codility?

The coding area is quite comfortable to use and understand. Although, it gives tutorial and tour about how to use the platform but it will be intuitive for those who have used such platforms before. So, as long as the coding section is concerned, I like it much more now with AI Assistant. Review collected by and hosted on G2.com.

What do you dislike about Codility?

Apart from coding section, I would really like them to enhance their UI for other sections. It just looks like some old websites, plain and simple. Review collected by and hosted on G2.com.

S C.

Talent acquisition

Enterprise (> 1000 emp.)

7/9/2025

"Great tool to screen software capability"

4.5/5

What do you like best about Codility?

What I like best about Codility is how it tests real-world problem-solving, not just textbook knowledge. The challenges are practical, well-structured, and give a great sense of how candidates think and code under pressure. It’s efficient, fair, and actually fun to use. Review collected by and hosted on G2.com.

What do you dislike about Codility?

One thing I dislike about Codility is that it can feel a bit rigid and high-pressure, especially for candidates who are strong developers but don’t perform well under time constraints. It doesn’t always capture a candidate’s full potential. Review collected by and hosted on G2.com.

Tara B.

Sr. Manager, Talent Acquisition - GTM & Platform

Mid-Market (51-1000 emp.)

11/21/2023

"Codility is easy to use and helps make us feel confident in our technical hires."

5/5

What do you like best about Codility?

Codility's take-home tests and Code Live features give us the flexibility we need in our process while hiring the best-in-class tech talent in the market. Their Customer Success team is always there for support when we need it. It's easy to use, easy to implement, and we only have good things to say. Review collected by and hosted on G2.com.

What do you dislike about Codility?

I don't have any negative reviews. Codility has helped us to hire tech talent fast! Review collected by and hosted on G2.com.

Sivaraj V.

Senior Developer

Enterprise (> 1000 emp.)

12/22/2025

"Effective Interview Platform with Solid Best Practices"

4/5

What do you like best about Codility?

Codility offers solid best practices for interviews. I find their approach to be effective and helpful during the interview process. Review collected by and hosted on G2.com.

What do you dislike about Codility?

AI features are often restricted, and you need to enable them to access more options. Review collected by and hosted on G2.com.

Verified User in Computer Software

Small-Business (50 or fewer emp.)

8/10/2024

Guest users or non-business users of the software, not included in G2 scores.

"Grab Coding Interview Experience"

4.5/5

What do you like best about Codility?

I don't have any new things to add to this Review collected by and hosted on G2.com.

What do you dislike about Codility?

I don't have any new things to add to this Review collected by and hosted on G2.com.

Tanu M.

Student

Small-Business (50 or fewer emp.)

9/16/2024

"Feedback"

4.5/5

What do you like best about Codility?

The best thing i like about codility is the ability to collab during interview using the builtin video and editor so i dont juggle btw tabs and also the interface that makes navigation soo much easy peasy.. Review collected by and hosted on G2.com.

What do you dislike about Codility?

there should be more expanded java library support like util.stream nd many more.. also i think there should be more better results or feedback messages on compilation error.. Review collected by and hosted on G2.com.

Verified User in Consulting

Mid-Market (51-1000 emp.)

7/9/2025

"Excellent for Technical Interviewing"

4.5/5

What do you like best about Codility?

Codility allows us to review candidates on their technical abilities while also screening for soft skills using the CodeLive feature! Codility is a true partner - we asked them to help us updated our technical interview and they recommended and implemented a new test based on our desired criteria within days! We also love the built in AI feature, Cody. It's really going to improve our interview experience for our candidates and interviewers. Review collected by and hosted on G2.com.

What do you dislike about Codility?

Sometimes the interface can be less than intuitive for our interviewers, but we've updated our instructions and improved training. Review collected by and hosted on G2.com.

Harsh S.

Production Team Member

Small-Business (50 or fewer emp.)

9/4/2024

Guest users or non-business users of the software, not included in G2 scores.

"Codility is a powerful platform for those looking to sharpen coding skills."

4.5/5

What do you like best about Codility?

Codility focus on efficiency and performance, providing real-time feedback that helps developers optimize their code and prepare effectively for technical interviews. Review collected by and hosted on G2.com.

What do you dislike about Codility?

What I dislike about Codility is the limited free content and the lack of community interaction, which can make it harder to fully explore the platform and learn collaboratively. Review collected by and hosted on G2.com.

What problems is Codility solving and how is that benefiting you?

Codility solves the problem of evaluating and improving coding skills by offering a platform with a wide range of algorithmic challenges and real-time coding assessments. This benefits me by providing a structured environment to practice and refine my problem-solving abilities, especially in preparation for technical interviews, ensuring I can write efficient and optimized code under pressure. Review collected by and hosted on G2.com.

Verified User in Computer Software

Mid-Market (51-1000 emp.)

6/2/2024

Guest users or non-business users of the software, not included in G2 scores.

"Codility Review update"

5/5

What do you like best about Codility?

1. Questions has got a lot better for skills assesment and are more revelant now.

2. Library support and auto completion has got a lot better, so now the candidate can focus more on what really matters. Review collected by and hosted on G2.com.

What do you dislike about Codility?

There should be option for uploading the test cases through txt files, as it will be easier for testing in case user has already wrote them in separate file, as in the codility interface typing for the test cases is somewhat difficult and consumes more time. Review collected by and hosted on G2.com.