Codility Reviews & Product Details

Codility is a technical and AI skills assessment platform built on documented assessment science. For almost two decades it has helped engineering and talent teams answer one question with evidence: who can actually do the work. Every task is designed by occupational psychologists, mapped to the Codility Engineering Skills Model, and monitored for adverse impact at every measured cut score. When a result is challenged, the methodology behind it is documented and reviewable. Three products run on that foundation. Screen delivers standardized early technical signal at scale. Interview runs structured live technical interviews in a real engineering environment. Skills Intelligence maps and grows verified technical capability across the engineers an organization already employs. Hiring and workforce share one evaluation model, so an external candidate and an internal engineer are measured the same way. Screen assesses candidates asynchronously against a library of 1,300+ validated tasks spanning real-world work simulations, project-based work, algorithmic problems, coding, and SQL, across 80+ languages and frameworks including Python, Java, JavaScript, TypeScript, C#, Go, Rust, Kotlin, React, Angular, Vue.js, Spring Boot, Django, Terraform, Kubernetes, Spark, and TensorFlow. Scoring is automatic on supported task types, with candidate comparison, configurable time limits, and role-specific weighting. Interview runs live technical interviews in a shared VS Code environment with terminal access, sidecar services for databases, caching, and message queues, a collaborative whiteboard, rubric scoring, and a full session transcript and recording. Engineering teams watch a candidate think, debug, and build. Talent teams get a repeatable process and session playback after every interview. Skills Intelligence assesses the engineers an organization already has, on the same engine used for hiring. Teams use it to find capability gaps, benchmark proficiency across teams, guide internal mobility, and plan workforce deployment on assessed evidence rather than self-reporting. It runs on the Codility Engineering Skills Model, which covers 30 skills and 180 subskills across five categories and maps to SWEBOK v4, SFIA v9, O*NET, the NIST AI Risk Management Framework, and ISO/IEC 42001, validated by engineering leaders. AI is part of engineering work now, so Codility assesses how people work with it. The in-assessment AI Assistant is enabled or disabled per assessment, and every candidate interaction is captured as reviewable AI activity. Anthropic's Claude Code runs in the terminal of the Codility assessment environment across Screen, Interview, and Skills Intelligence, with the full interaction saved to the candidate record, so candidates work with the agentic tool they would actually use and the prompts, edits, and corrections stay reviewable afterwards. AI-native tasks put an assistant into the work itself, including tasks where it makes deliberately seeded mistakes the candidate has to catch, verify, and correct, which surfaces judgment about AI output rather than raw code volume. AI Follow-Up Questions check whether a candidate understands the code they submitted, and are deliberately not scored to avoid introducing bias. Model-level and more granular AI controls are on the roadmap. AI for Business extends the same methodology to every role beyond engineering, and it is available now in Preview. It runs inside Screen or Skills Intelligence on the same assessment engine, scoring, reporting, integrations, and compliance posture, with no separate product to buy. Only the candidate experience and the task library change. A person works alongside the AI Assistant in a simplified writing environment, no code involved, to produce a real deliverable such as a verified report, a prioritization call, or an account brief. The deliverable is scored deterministically against an answer space defined by experts, so no AI grades AI, and every prompt and response is captured as a reviewable record. Tasks run from 20 to 60 minutes and cover marketing, sales, finance, operations, customer support, and product management roles, plus general tasks any employee in any function can take for an organization-wide AI skills baseline. Integrity controls are layered so a hiring decision holds up when it is questioned. They include identity verification, behavioral signals, deterministic integrity risk scoring, similarity detection, solution paste volume measurement, browser absence and tab switching signals, and code evolution playback. Typing pattern detection, which flags line-by-line retyping from a second screen, and cheating apps detection, which surfaces helper applications that hide from screen capture, are available in Preview. Reviewers see which signals contributed to a risk band, signals route to a human reviewer, and nothing auto-rejects a candidate. Codility is SOC 2 Type II audited, ISO 27001 certified, GDPR and CCPA compliant, WCAG 2.2 AA accessible, and aligned with EU AI Act requirements for high-risk AI classification. Methodology is documented in a 92-page Technical Manual structured to APA Standards, with adverse impact data at every cut score, the EEOC four-fifths threshold met at every measured cut score, and an independent cApStAn linguistic audit supporting fairness for non-native English speakers. No AI or machine learning is used in automated hiring decisions. Data is hosted in either EU or US regions. Codility integrates with more than 20 applicant tracking systems (ATS) and scheduling tools including Greenhouse, Workday, SAP SuccessFactors, iCIMS, SmartRecruiters, Lever, Eightfold, and Ashby, with results flowing back into the ATS, plus 80+ human resources information systems (HRIS) integrations for Skills Intelligence. It supports single sign-on (SSO) via SAML 2.0 and offers API access for custom workflows. Codility Professional Services supports taxonomy mapping, rollout design, and pass-score governance for large deployments. Founded in 2009, Codility is used by engineering, talent, and business teams at Barclays, BMW, Deutsche Bank, GitHub, Samsung, SpaceX, and other organizations assessing technical and AI skills across hiring and existing workforces.

Seller

Codility Ltd

Discussions

Codility Community

Languages Supported

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

Solution Type

All-in-One

Used by Upwork and 2 others

Beta

Pricing

Pricing provided by Codility.

Starter

$1,200.00

Usage Based Per Year

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Codility Integrations

(84)

Verified by Codility

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Codility Reviews FAQs

Generated using AI

Last updated: Nov 04, 2026

What is Codility, and what problem is it built to solve?

Codility is a platform for assessing and advancing technical skills. It supports technical hiring, structured live interviews, and engineering teams’ visibility into internal skills to help organizations make evidence-based talent decisions.

What languages does Codility support?

Codility supports 10 languages: Chinese (Simplified), English, French, German, Japanese, and others.

What company sizes and industries is Codility the best fit for?

Codility is most often used by positive reviewers in enterprise and mid-market organizations, especially in software and technology-related fields. The strongest reviewer-reported clusters include:

Company size — Enterprise: The largest concentration of positive reviewers came from organizations with more than 1,000 employees.
Company size — Mid-market: Organizations with 51–1,000 employees were also well represented.
Industry — Software and IT: Computer Software and Information Technology and Services were prominent.
Industry — Financial services: Banking and Financial Services were also recurring fields.

How long does it take to implement Codility across a team?

Codility is most commonly live within a month, though teams report a range of implementation timelines. The other reported clusters include:

Time to go live	Relative frequency
Under 1 month	Most common
1–3 months	Also reported
3–6 months	Also reported
Over 12 months	Less common

What customer support options does Codility provide, and how do users find the overall support experience?

Support includes chat and phone assistance, with 24/7 live-rep support available. The experience is described as responsive and helpful, particularly for onboarding, setup, and resolving access or integration questions; users also value personalized guidance.

What is the experience like for teams switching to Codility from another tool?

Teams have moved to Codility from coding-assessment platforms such as HackerRank, HackerEarth, and CodinGame, as well as from simpler interview tools and screen-sharing workflows. The change has brought more structured coding assessments, live collaboration, and—in some cases—better fit with recruiting systems; switching reasons also include differences in flexibility, reliability, features, and value.

What features or capabilities could make Codility even more useful?

Codility could be more useful with broader options for specialized roles and a more capable coding environment. Recurring improvement requests include:

Expand the task library with more current, niche, and practical role-specific assessments.
Improve the coding environment with stronger debugging, testing, and developer-tool support.
Make custom task creation and assessment configuration more flexible and straightforward.
Provide clearer, more adaptable reporting and candidate feedback.
Strengthen tools for detecting and reviewing suspicious or AI-assisted submissions.

Is Codility considered safe and secure for handling data?

Codility’s security-related strengths center on assessment integrity: users describe similarity checks and activity tracking as useful signals when evaluating submissions. Those signals are not a guarantee that every form of outside assistance or copied work will be detected, and users value being able to review flagged results rather than treating them as conclusive.

G2 reviews are authentic and verified.

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Harsh S.

Production Team Member

Mid-Market (51-1000 emp.)

Updated 10/1/2026

Originally submitted 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?

The automated test suites and detailed performance metrics continue to be standout features. The platform offers reliable edge-case analysis and time-complexity evaluation, making candidate screening and skill assessment seamless and precise. Review collected by and hosted on G2.com.

What do you dislike about Codility?

Providing more interactive problem-solving explanations or detailed solution breakdowns after completing assessments would greatly enhance the learning curve. Additionally, expanding the variety of niche domain-specific tasks and offering more free public practice sets would be beneficial. 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.

Current UserValidated ReviewerIncentivizedSource: Seller invite

Tyra O.

Recruiting Project Manager

Mid-Market (51-1000 emp.)

10/27/2026

"Extremely Customizable, Granular Settings & Great Automation"

5/5

What do you like best about Codility?

Codility is extremely customizable. The granularity of settings is extremely helpful. Review collected by and hosted on G2.com.

What do you dislike about Codility?

The only thing that I dislike about Codility is the automated follow up survey they send to candidates after interviews. There is no option to customize the questions, and some of the content they are asking candidates to answer is slightly invasive and subjective. You need to contact Codility directly in order for them to turn it off per test/interview. Review collected by and hosted on G2.com.

Current UserValidated ReviewerIncentivizedSource: G2 invite

Ajas S.

Technical Support Engineer

Enterprise (> 1000 emp.)

9/30/2026

"Codilty: Remote Tech Hiring Made Simple! Codility: Streamlining Our Technical Screening with Ease"

5/5

What do you like best about Codility?

They have really good core tasks which can be used to understand and cross-check the potential and skills of the candidates for engineering teams. Review collected by and hosted on G2.com.

What do you dislike about Codility?

Not every updated versions of stack are available for their core tasks. Review collected by and hosted on G2.com.

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

Before implementing Codility, our engineering team spent dozens of engineering hours manually screening technical applicants and conducting initial code interviews. Codility helped us streamline our early-stage technical evaluation by automating code assessments with real-world scenarios. As a result, we reduced our time-to-hire significantly and saved countless hours of developer time previously lost to preliminary interviews. Additionally, the automated scoring and standardized test environments have eliminated bias from our initial screening stage, helping us focus only on top-performing candidates. Review collected by and hosted on G2.com.

Current UserValidated ReviewerSource: Organic

Francisco José A.

Full-stack Developer

Small-Business (50 or fewer emp.)

Updated 10/11/2026

Originally submitted 6/18/2024

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

"An ExcelentTool for Assessing Programming Skills"

4.5/5

What do you like best about Codility?

The automated and detailed evaluations help identify candidates' strengths and areas for improvement efficiently. Review collected by and hosted on G2.com.

What do you dislike about Codility?

What I dislike about Codility is that, in some cases, the problems can be too similar to each other, which can limit the assessment of varied skills. Review collected by and hosted on G2.com.

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

Codility solves the problem of objectively and efficiently assessing technical skills during the hiring process. By providing a comprehensive platform for coding challenges and automated evaluations, it eliminates biases and ensures that only the most qualified candidates progress through our recruitment pipeline. This not only saves us time and resources but also improves the quality of our hires. Additionally, Codility helps us identify areas where our current team members can improve, fostering continuous learning and development. Overall, it enhances our recruitment process and contributes to building a stronger, more competent engineering team. Review collected by and hosted on G2.com.

Validated ReviewerIncentivizedSource: Seller invite

Bruno M.

Senior Software Engineer

Enterprise (> 1000 emp.)

9/25/2026

"Web-Based Interviews with Great Code Highlighting and System Design Tools"

4/5

What do you like best about Codility?

The fact of being web based helps a lot, so that the candidates don't need to install any software nor the interviewer. The code highlighting for code interview and the graphical tool for system design interviews are also very good. There is no delay on the interactions. Review collected by and hosted on G2.com.

What do you dislike about Codility?

I believe that they haven't yet found the sweet spot for testing interface during the code interview, a better way so that candidates can create tests for their code should be on the horizon. Review collected by and hosted on G2.com.

Current UserValidated ReviewerIncentivizedSource: Seller invite

Udit C.

Senior PPC Analyst

Enterprise (> 1000 emp.)

Updated 9/28/2026

Originally submitted 9/2/2024

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

"Interview experience became best with codility"

5/5

What do you like best about Codility?

One thing I particularly like about Codility is how it continues to make technical assessments more practical and relevant to real-world software engineering. The platform provides a good balance between coding challenges, problem-solving, and evaluating candidates based on their actual technical skills. I also like the improvements around the overall assessment experience, which make it easier to create, manage, and review technical evaluations efficiently. Review collected by and hosted on G2.com.

What do you dislike about Codility?

Codility could continue improving the overall user experience by making the platform even more intuitive and streamlined, particularly around assessment setup, navigation, and reviewing candidate submissions. More flexibility in customizing assessments and clearer insights into candidate performance would also be valuable. Overall, the platform works well, but these improvements could make the experience even more efficient for both recruiters and technical interviewers. Review collected by and hosted on G2.com.

Validated ReviewerIncentivizedSource: Seller invite

Verified User in Marketing and Advertising

Enterprise (> 1000 emp.)

10/5/2026

"Customizable tests with real use cases in Codility"

5/5

What do you like best about Codility?

Allows customization of tests to adapt to a real work environment evaluation. This involves using real use cases. Additionally, tools and languages useful for the work team can be used in the tests. Review collected by and hosted on G2.com.

What do you dislike about Codility?

In the time I've been using Codility, I haven't found a way to easily group the interviews I apply to. It's always necessary to search for them by the interview ID. Review collected by and hosted on G2.com.

Current UserValidated ReviewerIncentivizedSource: Seller inviteAI Translated

Shyam B.

Senior software architect

Mid-Market (51-1000 emp.)

Updated 9/28/2026

Originally submitted 8/24/2023

"Standardization of Hiring Metrics and Measurement of Skillset - Codility and Integration of AI"

4.5/5

What do you like best about Codility?

The integration of AI features in it reduces the burden on humans a lot and it is helping my organization to make the hiring process more efficient and robust. The narration of questions is a masterstroke as the candidates cannot copy and paste now nor use OCR and answer without even realizing what the questions are. Review collected by and hosted on G2.com.

What do you dislike about Codility?

The feature for anti-plagiarism can be improved. So AI answers written in human-like form get missed. It's like AI competing with AI. Review collected by and hosted on G2.com.

Validated ReviewerIncentivizedSource: Seller invite

Aditi .

Software Engineer

Enterprise (> 1000 emp.)

Updated 11/5/2026

Originally submitted 9/19/2026

"Excellent Interface for Skill Testing and Candidate Evaluation"

5/5

What do you like best about Codility?

The platform provides a very good interface for testing our skills as well as candidates’ skills, helping us identify their capabilities. Review collected by and hosted on G2.com.

What do you dislike about Codility?

The questions are very basic overall and really need improvement. They also don’t always match or justify the stated difficulty level. Review collected by and hosted on G2.com.

Current UserValidated ReviewerIncentivizedSource: Seller invite

Verified User in Banking

Small-Business (50 or fewer emp.)

Updated 9/26/2026

Originally submitted 11/21/2023

"Predict the on-the-job performance of software and data engineers"

5/5

What do you like best about Codility?

I highly value Codility's pivot toward modern engineering workflows, particularly its transition to a native VS Code-powered environment that allows candidates to use multi-file navigation, a real terminal, and debugging tools. To address the rise of generative AI, their new narrated, animated video tasks successfully prevent simple prompt copy-pasting, forcing candidates to actually process problems conceptually. Furthermore, rather than blindly blocking AI, their configurable GenAI assistant lets teams monitor and evaluate how effectively an engineer uses AI for problem decomposition and code verification. Finally, features like full interview session replays and the integrated Excalidraw whiteboard layer make reviewing a candidate's genuine troubleshooting loop and system design capabilities seamless. Review collected by and hosted on G2.com.

What do you dislike about Codility?

While Codility is an excellent screening tool, it remains a high-cost investment for scaling startups and high-volume pipelines, and it could improve significantly in test-design flexibility and developer environment customisation. Modifying pre-built library tasks to match specific company production schemas is currently too rigid, while the locked-down VS Code IDE blocks custom keybindings (like Vim) and extensions, creating artificial friction for senior candidates. Furthermore, for modern data engineering roles, the platform relies too heavily on local scripting (Python/SQL) rather than simulating complex distributed cloud architectures or modern orchestration tools like dbt and Airflow. Review collected by and hosted on G2.com.