Mettl vs HackerEarth tech assessments: Which platform wins for coding interviews?
HackerEarth leads for live collaborative coding interviews and developer-focused assessment depth; Mettl leads for psychometric breadth and layered high-stakes proctoring. This Mettl vs HackerEarth tech assessments comparison breaks down where each platform wins across features, integrations, pricing, and candidate experience so hiring teams can pick the right fit.
The shift toward AI-supported hiring is accelerating across HR functions. The percentage of companies using AI in HR grew from 26% in 2024 to 43% in 2025, according to SHRM (link accessed at time of writing; readers should verify the source is live before citing). While that figure covers AI in HR broadly rather than technical assessment platforms specifically, it points to a wider trend: teams are looking for smarter systems that help them identify strong candidates earlier and with more reliable scoring.
This article compares two widely used hiring assessment platforms in tech: Mettl and HackerEarth. We'll explore core features, real-time collaboration, integration ecosystems, analytics, and pricing signals, so you can choose the right tool for your team. For additional context on structured technical evaluation, see our guide to technical screening and the broader tech recruiting playbook.
Disclosure: This article is published on the HackerEarth blog. While we aim to compare both platforms fairly on documented features, readers should be aware of the publisher relationship and consult third-party sources such as HackerEarth on G2, Mercer Mettl on G2, Capterra, and TrustRadius for independent user reviews and current rating counts.

What is Mettl? A quick overview for tech assessments buyers

Mettl is a talent assessment platform designed to support technical evaluations and broader skill testing for hiring and development. It emphasizes secure online testing and scientific assessment methodologies. On third-party review platforms, Mercer Mettl carries hundreds of user reviews across G2, Capterra, and TrustRadius; readers should check those pages for current scores.
The platform is used by companies that need customizable pre-employment tests measuring coding skills, cognitive ability, personality, and job-related competencies. Its coding assessment tools are used across industries to screen developers, quality assurance engineers, data scientists, and engineers working with modern stacks. Recruiters can choose from multiple question formats, including multiple choice, simulation-based coding tests, and case studies that mirror real job scenarios. According to Mettl's marketing materials, the platform also offers a large library of pre-built customizable tests spanning front-end, back-end, database, DevOps, and data science roles (buyers should confirm the current count directly with Mettl).
One of its notable features is its AI-powered remote proctoring system. This system records a candidate's screen, browser interactions, and video stream to protect assessment integrity. Its secure browser environment aims to prevent cheating and unauthorized navigation during high-stakes evaluations.
Mettl suits both small technical teams and large enterprises that want centralized evaluations across multiple roles and regions. Its analytics give hiring managers insights into performance trends, skill gaps, and role-specific benchmarks. Integration with applicant tracking systems like Workday and Greenhouse also strengthens its role in end-to-end recruitment workflows. Mettl publicly references security and compliance credentials including ISO 27001 and SOC 2 Type 2; buyers running regulated procurement should request current certification documentation directly.
Where Mettl has limitations: Mettl does not currently offer a live collaborative coding interview environment comparable to a full multi-interviewer panel IDE, which can matter for teams that rely heavily on real-time pair programming during interviews.
What is HackerEarth?

HackerEarth is a coding assessment platform that helps hiring teams evaluate candidates' coding abilities, problem-solving skills, and communication in real time. Across its products, it spans 1,000+ skills and provides recruiters with real-time skill intelligence to inform hiring decisions. On third-party review sites, HackerEarth Assessments is listed on G2, Capterra, and TrustRadius, where buyers can find current ratings and review volumes.
Interview FaceCode is HackerEarth's online coding interview tool, with a collaborative code editor, HD video chat, and interactive diagram boards for system design; it supports a multi-interviewer panel format as well as single-interviewer sessions. OnScreen, HackerEarth's AI interview tool, runs structured interviews based on predefined rubrics. In our experience, rubric-driven AI interviews tend to apply evaluation criteria more consistently across candidates than ad hoc human screens, though outcomes vary by rubric design. FaceCode also records full interview sessions and transcripts for later review and can mask personally identifiable information to support fair evaluations. FaceCode integrates with leading ATS platforms, including Greenhouse, Lever, Workday, and SAP.
Where HackerEarth has limitations: HackerEarth is developer-centric and is not primarily positioned as a deep psychometric or cognitive testing suite in the way Mettl is. Teams that need extensive personality, behavioral, or cognitive evaluations across non-technical roles may find Mettl's breadth better suited to that scope.
Mettl vs HackerEarth tech assessments: feature comparison
Before we dive deeper into the features of both tools, let's take a side-by-side look at how they compare on core criteria.
| Feature | Mettl | HackerEarth |
| Assessment breadth | Pre-employment assessments covering personality, behavioral, cognitive, domain knowledge, coding, and communication skills | Developer-centric assessments spanning 1,000+ skills, project-based problems, soft skills, and emerging AI capabilities |
| Coding assessment tools | Role-based coding simulators, project-based tests, hands-on IDEs, code playback, and automated scoring | Coding Assessment Test with a large question library across 1,000+ skills, real-time code editor, project-based assessments, automated leaderboards, and partial scoring |
| Live coding & collaboration | Supports pair programming, interactive whiteboards, role-specific simulators, and secure AI-assisted proctoring | FaceCode allows real-time collaborative coding interviews with multi-interviewer panel support, HD video, and interactive diagram boards |
| Evaluation & scoring | Auto-grades objective questions, allows manual scoring of subjective answers, supports custom scoring rules, and detailed analytics | Auto-evaluates coding tests, supports partial scoring, leaderboards, and performance dashboards with time, accuracy, and trend metrics |
| Proctoring & security | Multi-layered AI + human proctoring, three-point authentication, Secure Browser, dual camera, audio monitoring, record & review, security certifications per vendor | AI-driven proctoring with Smart Browser, video snapshots, eyeball tracking, audio monitoring, plagiarism checks, dynamic question shuffling, surprise questions, e-KYC ID verification |
| Reporting & analytics | Concise reports, interactive graphs, cross-device access, 26+ languages, global-ready dashboards | Detailed analytics, Codeplayer records keystrokes, question health scores, candidate funnel insights, completion rates, and score distributions |
| Pricing model | Custom quotes based on volume, test type, and enterprise requirements; bundled support/services; high flexibility | Tiered pricing for skill assessments, AI interviews, talent engagement, and L&D options for small teams or enterprise; monthly & yearly billing |
| Candidate experience | Realistic IDEs, hands-on tests, secure proctoring, and project-based assessments | Real-time coding interviews, collaborative IDE, Smart Browser, dynamic question sets, plagiarism checks, and surprise questions |
| Best use case | Enterprise assessments, large-scale screening, multi-dimensional evaluation (technical, behavioral & cognitive) | Developer-focused hiring, live coding interviews, collaborative technical evaluation, scalable coding tests, and AI-driven interview insights |
Note on question library size: publicly available third-party comparisons cite differing figures for both platforms' question libraries. For example, a third-party comparison document on Scribd references 36,000+ questions for HackerEarth and roughly 20,000 for Mettl as of August 2025. These figures are third-party estimates and are not confirmed vendor data; prospective buyers should confirm current library sizes directly with each vendor.
ATS connectors for both platforms are consolidated in the Integrations & hiring workflows section below.
Deep dive: Mettl vs HackerEarth assessment & interview capabilities
Now that we've compared the platforms at a high level, let's take a closer look at their assessment and interview capabilities in real-world hiring scenarios.
Assessment breadth & depth
Mettl offers a pre-employment assessment suite that measures both core traits and acquired skills. Core traits include personality, behavioral tendencies, and cognitive abilities, while acquired skills cover domain knowledge, coding, and communication.
The platform provides customizable assessments, AI-assisted proctoring, and integrations with major ATS platforms. Teams can evaluate candidates across hundreds of technical and psychometric competencies, including real-world coding simulators and project-based assessments. Mettl emphasizes data-driven insights, predictive on-job behavior evaluation, and security, which is useful for large-scale and high-stakes hiring.
As a Mettl alternative, HackerEarth allows teams to assess developers' technical and soft skills through a library covering 1,000+ skills, including emerging AI capabilities. The platform supports project-based questions, automated leaderboards, and a real-time code editor that works with 40+ programming languages and Jupyter Notebooks. Assessments also surface real-time skill intelligence so recruiters can gauge candidate capability across a role.
Role-specific assessments — including DSA, psychometric tests, and GenAI tasks — let recruiters evaluate technical problem-solving alongside critical soft skills.
Section verdict: HackerEarth for developer-focused depth and hands-on coding simulations; Mettl for holistic pre-employment testing that extends beyond engineering.
Live coding & collaboration
Mettl provides a coding assessment platform with role-based simulators for front-end, back-end, and full-stack development. Candidates work in realistic IDEs, attempt hands-on coding tests, and can participate in project-based assignments.
The platform supports pair programming using integrated coding simulators, interactive whiteboards, and a notepad for brainstorming solutions. Auto-graded evaluations, code playback features, and real-time analytics allow hiring teams to review candidate performance and make decisions with less manual effort. Mettl also enables secure, AI-assisted proctoring and integration with major ATSs.
HackerEarth offers two complementary tools. The Coding Assessment Test lets recruiters create automated, role-specific coding tests across 1,000+ skills, with project-based problems, automated leaderboards, and SmartBrowser proctoring.
FaceCode enables real-time, collaborative coding interviews with multi-interviewer panel support, HD video, interactive diagram boards, and support for 40+ programming languages. Recordings and PII masking help support fairer evaluations, and both tools together cover end-to-end coding assessment needs.
Section verdict: HackerEarth leads for real-time collaboration thanks to FaceCode's interactive IDE and panel interview support. Mettl offers simulated coding tests and scalable assessments but does not currently match FaceCode's live collaborative experience.
Mettl vs HackerEarth: evaluation & scoring
Scoring can shape your hiring process. Mettl automatically grades objective questions like multiple-choice items and coding problems, and also lets evaluators manually score subjective or long-answer responses. This combination of automated and human scoring gives hiring teams control over how different question types influence the final result.
Administrators can design tailored test blueprints, define scoring rules, and create custom evaluation schemes to match the priorities of each role. Detailed analytics help recruiters benchmark performance across candidates and competencies.
HackerEarth focuses on automated scoring and actionable analytics. It auto-evaluates coding assessments against predefined test cases and supports partial scoring, awarding points for solving individual components of a problem.
The platform generates automated leaderboards and analytics on candidate performance, tracking metrics like accuracy, time taken, and problem-solving trends. Its assessment dashboard lets hiring teams compare candidates, spot performance patterns, and refine future tests based on completion rates and score distribution.
Section verdict: Even. HackerEarth edges ahead in automation and partial scoring; Mettl is a better fit when teams need manual evaluation of subjective responses. The right choice depends on your assessment format.
Proctoring & security
Both platforms offer strong proctoring, but they approach it differently.
Mettl combines AI and human oversight in a multi-layered system:
- Before the exam, candidates go through three-point authentication, including email verification, mobile OTP confirmation, and official ID checks.
- During the exam, the Secure Browser locks candidates to the test screen and restricts access to unauthorized applications.
- AI-powered monitoring flags suspicious behavior, while live human proctors can verify identities in real time.
Mettl also provides dual-camera monitoring, audio proctoring, and flexible record & review capabilities, allowing administrators to audit exams after they finish. Mettl publicly references ISO 27001 and SOC 2 Type 2 credentials on its marketing pages; buyers with regulated procurement should request current certification documents directly from the vendor.
HackerEarth delivers AI-driven proctoring designed for secure assessments. Its Smart Browser helps verify that test scores reflect a candidate's own ability by blocking unauthorized actions. The platform monitors candidates using video surveillance with AI-powered snapshots and eyeball-tracking, audio monitoring for whispers or external assistance, and dynamic question pooling and shuffling to reduce collaboration risk.
Post-test, HackerEarth challenges candidates with surprise follow-up questions to verify understanding and originality. A plagiarism engine scans submissions across the web and past candidate responses, and identity verification leverages government-grade e-KYC systems like DigiLocker. Administrators can further customize proctoring rules, from IP restrictions to copy-paste lockdowns.
Section verdict: Mettl wins this category for high-stakes, compliance-sensitive assessments. Its layered AI-plus-human proctoring, three-point authentication, and dual-camera monitoring are a better match for regulated or certification-grade testing than HackerEarth's automation-first approach.
Reporting & analytics for Mettl vs HackerEarth tech assessments
Both platforms give recruiters actionable insights.
Mettl delivers concise reports that highlight each candidate's strengths and weaknesses. Recruiters can navigate through summaries, interactive graphs, and charts, and customize the report format to match their priorities. Reports support cross-device access and more than 26 international languages across 80+ countries, which matters for globally distributed hiring teams running standardized assessments across regions.
HackerEarth provides detailed analytics focused on top performers and test effectiveness. The platform uses Codeplayer to record every keystroke and replay coding sessions, giving recruiters insight into logical approach, problem-solving, and programming skills.
Question-based analytics and a health score for each question help teams pick questions that match desired difficulty and learning outcomes. HackerEarth tracks assessment completion, score distribution, and candidate funnel metrics to refine future tests.
Section verdict: Close call, with Mettl edging ahead for teams that need multi-language, cross-region reporting at enterprise scale. HackerEarth's Codeplayer and question health scores offer sharper depth on the coding side; if your reporting needs are primarily engineering-focused, this section is effectively a tie.
Integrations & hiring workflows
Your technical assessment platform needs to fit into your broader ATS, HRIS, SSO, and API workflows.
Both platforms support pre-built ATS integrations, REST APIs, SSO/SAML, and webhook-style event updates.
- Mettl integrates with a broad set of ATS partners, including Greenhouse, Freshteam, SmartRecruiters, iCIMS, Ashby, Lever, Workable, Zoho Recruit, Keka, Peoplise, and Superset, alongside REST APIs, SSO/SAML, and webhooks. It emphasizes deep configurability and enterprise-grade support around its integrations, with API access to map jobs, register candidates, and push scores and report URLs into HR systems programmatically.
- HackerEarth — specifically FaceCode — offers documented ATS connectors for Greenhouse, Lever, Workday, and SAP, with additional connectors available across the broader HackerEarth Recruit product (please confirm the current list directly with HackerEarth). It also provides a Recruit API that developers can use to manage tests, invites, and results from their own systems, including embedding FaceCode live interviews into HRIS-driven workflows.
Both platforms support SAML and API key-based access, which helps teams manage user access consistently and protect candidate data throughout the hiring lifecycle.
Section verdict: HackerEarth is a good fit for teams that want to plug assessments and live interviews into an existing ATS with minimal engineering lift. Mettl fits teams that want deep configurability and bundled enterprise support around integrations. For a broader view of how assessments plug into modern pipelines, see our technical screening guide.
Pricing signals & packaging
Pricing transparency can influence buying decisions, particularly when comparing platforms against a specific budget.
Mettl
Mettl does not publish standard pricing online, and instead offers customized plans based on your organization's size, assessment volume, and feature needs. You'll have to speak with their sales team or request a demo to get a quote.
Here's what you can generally expect from Mettl's pricing approach:
- Custom quotes tailored to your business context
- Plans shaped by assessment volume, test types, and usage rather than rigid tiers
- Support and customization bundled into pricing, such as bespoke tests, branding, and integration help
- Security and compliance credentials (referenced publicly by Mettl as including ISO 9001, ISO 27001, and SOC 2 Type 2) often reflected in pricing for enterprise customers; buyers should request current documentation
Because Mettl doesn't list prices publicly, smaller teams or startups may find it harder to estimate a budget without engaging sales upfront. Enterprises with complex assessment needs — especially those requiring custom workflows, integration support, or remote proctoring at scale — can benefit from Mettl's tailored plans.
HackerEarth
HackerEarth publishes clear tiered pricing for its core Skill Assessments product. As of November 2025, the published tiers are:
- Growth: $99/month for 10 assessments
- Scale: $399/month for 25 assessments
- Enterprise: Custom pricing
Pricing can change; please confirm current tiers and inclusions on the HackerEarth pricing page before purchase.
Additional products such as OnScreen (AI Interviewer), Talent Engagement and Hackathons, and enterprise learning offerings (including SkillsGraph and VibeCode Arena) are available for enterprise customers with pricing available on request.
Smaller teams can start with a self-service plan, while larger organizations can opt for enterprise capabilities.
Here's a side-by-side pricing comparison:
| Aspect | Mettl | HackerEarth |
| Price transparency | Low: custom quotes only | High: published tiers for Skill Assessments |
| Best fit for small teams | Harder to estimate without sales | Clear starter plan available |
| Enterprise flexibility | Strong, highly customizable | Strong with a custom enterprise tier |
| Bundled support/services | Often included | Available, sometimes premium |
| Modular product pricing | Assessment-centric | Skill tests plus additional products (AI interviews, engagement, learning) available on request |
Third-party review platforms such as G2, Capterra, and TrustRadius publish user reviews and ratings for both platforms and can be useful additional inputs to buying decisions.
Candidate experience considerations
Buyers increasingly weigh how the platform feels to candidates, not just to recruiters. Both platforms run in-browser and support standard laptop and desktop setups; teams evaluating either should verify current mobile support directly with the vendor if candidates commonly test on phones or tablets.
On the HackerEarth side, candidates get a real-time code editor with instant feedback, syntax highlighting for 40+ languages, and a Jupyter Notebook option for data roles. FaceCode sessions run in-browser without extra installs, which reduces setup friction on interview day.
On the Mettl side, candidates typically install or launch a Secure Browser for high-stakes tests, which is more restrictive but is designed for compliance-sensitive scenarios. Realistic IDEs and role-specific simulators aim to keep the coding experience close to real work.
Common candidate concerns worth checking during buyer trials include mobile compatibility, bandwidth requirements for video-based proctoring, accessibility features, and how the platform handles mid-test disconnections.
Decision framework: which platform should you choose?
The right choice comes down to your hiring priorities, workflow, and candidate experience needs.
If your primary use case is coding interviews with real-time collaboration, HackerEarth is a strong option. Its real-time coding environment allows multiple interviewers to collaborate, supports over 40 programming languages, and generates detailed post-session reports. See HackerEarth Assessments and pricing for details.
If you need broad psychometric coverage and structured scoring across non-technical dimensions, Mettl is worth considering. It allows administrators to create custom scoring rubrics, combine auto-graded and manual evaluations, and produce interactive reports that highlight candidate performance trends. Mettl works well for large enterprises that require insights across multiple roles and skill levels, including personality and cognitive competencies.
A few neutral questions to guide the decision:
- What is the mix of technical vs. non-technical roles you assess in a typical quarter? Higher non-technical volume favors Mettl; predominantly engineering hiring favors HackerEarth.
- How strict are your proctoring and compliance requirements? Certification-grade or regulated testing tilts toward Mettl; standard technical screening tilts toward HackerEarth.
- How important is a self-serve pricing entry point versus a bundled enterprise contract? Self-serve buyers gravitate to HackerEarth's tiers; enterprise buyers may prefer Mettl's customized quotes.
- How much of your evaluation depends on subjective, human-graded responses versus auto-scored coding output?
When neither tool is the right fit: If you're hiring exclusively for non-technical roles (for example, pure sales or customer support) with no coding component, or you need highly specialized industry-specific certification testing, a general HR assessment suite outside these two platforms may serve you better.
The right tool depends on how you hire
A structured comparison helps highlight the strengths of each solution. Some organizations use both, treating HackerEarth as their coding interview and assessment platform and Mettl for broader pre-employment evaluations. Your choice should match your team's workflow, hiring volume, and the type of insights you want from each assessment.
Mettl fits teams that:
- Lead with enterprise-grade psychometric and cognitive assessment across a broad role mix
- Prioritize layered proctoring and compliance depth for high-stakes or certification-grade testing
- Run high-volume, standardized evaluations across many role families in multiple regions and languages
HackerEarth fits teams that:
- Focus on real-time coding interviews with a collaborative coding environment
- Want workflows that scale for technical hiring
- Need role-specific insights to inform engineering hiring decisions
To see how HackerEarth fits your hiring workflow, request a demo.
Prefer to explore pricing first? Visit the HackerEarth pricing page for current tiers.
FAQs
What is a HackerEarth assessment?
A HackerEarth assessment is a structured online test used to evaluate a candidate's technical skills, primarily coding and problem-solving, through a mix of programming questions, project-based problems, and MCQs delivered via HackerEarth Assessments. Assessments run in a real-time browser-based code editor supporting 40+ languages, are auto-evaluated against test cases with support for partial scoring, and can be paired with Smart Browser proctoring and plagiarism checks. Recruiters receive analytics on accuracy, time taken, and candidate ranking to inform shortlisting.
Which one is better, HackerRank or HackerEarth?
Both HackerRank and HackerEarth are established coding assessment platforms and serve overlapping use cases; "better" depends on your priorities. HackerRank is often chosen for its large developer community and standardized skill certifications. HackerEarth is often chosen when teams want a broader skills library, real-time collaborative interviews through FaceCode, hackathon and hiring challenge capabilities, and AI-driven proctoring. Buyers comparing all three tools (HackerRank, HackerEarth, Mettl) should shortlist based on live interview needs, ATS integrations, and pricing model rather than brand recognition alone.
Can HackerEarth detect cheating?
Yes. HackerEarth detects cheating through AI-driven proctoring that includes Smart Browser lockdown, video and audio monitoring, eyeball tracking, dynamic question shuffling, plagiarism detection across the web and past candidate submissions, surprise follow-up questions, and e-KYC identity verification. Administrators can also customize proctoring rules such as IP restrictions and copy-paste lockdowns per assessment.
Which platform offers a better live coding experience?
HackerEarth's FaceCode integrates a real-time editor, video chat, diagram boards, and multi-interviewer panel support, letting several interviewers work with a candidate in one session. Mettl supports pair programming through simulators and whiteboards but does not currently offer an equivalent multi-interviewer live IDE. If live collaborative coding is a hard requirement, this difference is likely to be decisive.
Which platform has deeper analytics, and what are the trade-offs?
The analytics choice has downstream cost and tooling implications that are easy to miss. Mettl's broader analytics span personality, behavioral, cognitive, and technical dimensions with cross-device reporting in 26+ languages — useful if you already run centralized enterprise reporting, but you may pay for depth you don't use if you hire mostly engineers. HackerEarth's coding-side depth (keystroke-level Codeplayer replays, per-question health scores) is narrower but often removes the need for a separate engineering-hiring BI layer. Weigh whether you're consolidating onto one enterprise analytics platform or optimizing a purpose-built engineering funnel.
What integrations do these platforms support?
Both platforms integrate with major ATS and HR tools, plus REST APIs, SSO/SAML, and webhooks. Full connector lists are consolidated in the Integrations & hiring workflows section above. Buyers should confirm connector availability and depth (one-way vs. two-way sync) with the vendor for their specific ATS.
Which platform is more scalable?
Both platforms handle large hiring volumes. Mettl's architecture supports high assessment loads and a wide range of assessment types, which is suited to enterprise-wide screening across many role families. HackerEarth scales well for technical interviews and ongoing developer hiring at medium to large organizations.



