Category
Interview/Assessment
Rating
4.6/5 (43 Reviews)
Availability
HQ
London, United Kingdom
Pricing
From from $1200/year
Free tier
No
Best for
Also in
Capabilities
What is Codility?
Codility is a technical assessment platform focused on automating coding skill evaluation through real-world tasks rather than trivia-style puzzles, with a CodeLive feature that lets candidates and interviewers collaborate in real time on a shared coding problem. It's widely used by enterprises for evaluating software engineers at scale, with plagiarism detection built in to protect assessment integrity. Your engineering team configures and reviews assessments directly; Effi Flo's role is connecting results into your ATS workflow so qualified candidates move to the next stage automatically.
What are Codility's key features?
A real engineering environment, not a stripped-down test editor: Candidates work in a full VS Code environment with package installation and terminal access - so your team sees how someone actually works, not how they perform under an artificial constraint.
Validated by I-O psychologists, not just engineers: A 1,200+ task library and validated assessment methodology mean scores correlate with on-the-job performance, with adverse impact monitored at every cut score for defensibility when a hiring decision gets reviewed.
Assess how candidates actually work with AI tools: A library of AI-specific tasks measures whether a candidate can prompt effectively, evaluate AI-generated output critically, and know when to override it - not ignore the reality of how engineers work in 2026.
Identity and integrity checks built into every assessment: Verification, impersonation detection, and plagiarism tools confirm who's actually at the keyboard - giving your team confidence that a strong score reflects the candidate's real ability before advancing them.
Connects to your ATS for a complete hiring picture: Effi Flo integrates Codility with Greenhouse, Lever, Workday, or your platform of choice so scoring, session recordings, and reports land directly in the candidate's existing record.
How do recruiting teams use Codility?
- An engineering TA team at a mid-market tech company uses Codility's work-sample coding tasks to evaluate how candidates actually build, rather than whether they can solve algorithmic puzzles under time pressure.
- A scaling tech company's TA team uses Codility's live technical interview environment - a shared IDE with real-time feedback - to see how a candidate works through a problem, not just whether their final answer is correct.
- An enterprise TA team in a regulated industry uses Codility's EU AI Act-aligned assessments and I/O psychologist-designed frameworks to keep technical screening both rigorous and auditable.
Who is Codility best for?
- Large organizations running high-volume technical hiring events - campus recruitment, hackathons - that need branding and scale alongside structured assessment
- Fortune 500 teams with compliance requirements where SOC 2 and ISO 27001 certification matter to procurement before a vendor gets approved
- Engineering cultures that prioritize practical, real-world coding tasks over algorithmic puzzle-style assessment
What are Codility's pros and cons?
Pros
- Assessment uses VS Code with standard development tooling, showing how candidates actually work rather than their ability to code under artificial constraints
- Code Health analysis evaluates maintainability and complexity, differentiating candidates who write clean code from those who create technical debt
- AI-specific assessment tasks reflect modern engineering workflows instead of generic coding puzzles
- Skills Intelligence provides visibility into your existing team's capabilities, reducing unnecessary external hiring
- Integrates with major ATS platforms (Greenhouse, Lever, Ashby, Workday, SAP) and supports custom integrations via API
Cons
- Custom pricing tier required for Skills Intelligence, enterprise integrations, and dedicated support - not available on self-serve plans
- Setup and assessment design may require occupational psychologist review for fairness analysis, adding implementation complexity for some organizations
- Learning curve for designing assessment programs that align with your team's actual engineering practices
What are people saying about Codility?
Reviewers highlight "My join on using codility to asses developer's and to improve my coding skills". Others note "very good program for people who need new challenges without fee.". One common thread: "Great tool to filter out right candidates for your purpose".
Consolidated from 43 reviews across Capterra · Updated April 28, 2026
How does Codility compare to alternatives?
| Feature | Codility | Arctic Shores | Bryq | CodeSignal | HackerRank |
|---|---|---|---|---|---|
| Category | Interview/Assessment | Interview/Assessment | Interview/Assessment | Interview/Assessment | Interview/Assessment |
| AI-first | |||||
| API | |||||
| MCP | |||||
| GDPR | |||||
| Best for | Agency, In-House | Agency, In-House | Agency, In-House | Agency, In-House | Agency, In-House |
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Frequently asked questions about Codility
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