The full review
What is HackerEarth?
HackerEarth runs two connected businesses under one brand. For developers it is a free practice destination of problem archives, timed contests, and a leaderboard. For employers it is a technical hiring platform covering sourcing, screening, interviewing, and upskilling. The company positions itself around skills evaluation for developers, candidates, and AI agents, with the suite laid out as five stages: Source, Screen, Interview, Engage, and Upskill.
That staging is the clearest way to read what HackerEarth actually sells. Each stage carries a named product rather than a generic module: Job Posting and Hiring Challenges at the funnel top, AI Screener and Technical Assessment in the middle, FaceCode and OnScreen for interviews, Internal Hackathons for engagement, and Learning and Development for staff already on payroll.
Screening depth and the question library
Screening is where HackerEarth has the deepest history. The vendor reports a library of 40,000+ problems spanning 1,000+ skills and 40+ programming languages, with role-based assessments drawing on 25K+ vetted questions. Tests can be generated automatically or built by hand, and results export as shareable reports. Plagiarism detection ships on every plan, while advanced AI based checks are reserved for Scale and above, a meaningful split now that candidates arrive with model-generated answers.
Soft Skill Assessment sits alongside the coding tests, and psychometric tests for common roles are bundled from Growth onward. Scale adds video responses for subjective questions, closing a gap that pure code-execution scoring leaves open.
FaceCode and OnScreen for interviews
FaceCode is the live panel product. Candidates write in a collaborative IDE rather than a shared document, the editor auto-evaluates output as the session runs, and interviewers can rewind and replay the full coding sequence afterward to see how a solution was built, not merely what was submitted. Up to five interviewers can join one session, questions can be pulled from the HackerEarth library mid-interview, and an AI-compiled summary lands before the panel logs off.
OnScreen is the asynchronous counterpart: always-on AI interviews with KYC-grade identity verification and built-in proctoring. HackerEarth positions it squarely against proxy candidates and deepfakes in remote hiring, and the vendor reports that one enterprise customer interviewed more than 2,000 candidates across a single weekend.
Hackathons and developer engagement
Hackathons show up twice in the suite: the Source stage is described as engaging developers through global hackathons and challenges, and the Engage stage carries both Hackathons and Internal Hackathons. Hiring Challenges are built around a role and amplified to a developer community the vendor sizes at more than 10M. Internal Hackathons turn that machinery inward so engineering teams can attack business problems as an event. VibeCode Arena is the developer-facing challenge product, and HackerEarth pitches it as evaluating more than just correctness, scoring submissions for efficiency, stability, and scalability.
Free practice for developers
The developer-facing side stays free and is useful independent of hiring. Practice organizes work into Codemonk, Basic Programming, Data Structures, Algorithms, Math, and Mock Assessments, with difficulty labels and acceptance rates on every problem. Compete, Jobs, Leaderboard, and a Resume Builder round it out. Learning and Development is free for individual developers, with premium content charged separately and per-user annual pricing for businesses.
Plan boundaries and admin controls
Plan boundaries track volume and integration depth rather than core capability. Growth is single-admin with a monthly credit allowance. Scale unlocks unlimited admins, ATS and calendar integrations, a larger question library, and learning and skill path analysis. Enterprise adds API access, single sign on, user roles and permissions, custom credits, a talent pipeline, global candidate benchmarking, and a dedicated customer success manager, while white-labeling is already available from Scale. HackerEarth lists SOC2 Type II, ISO 27001 and 27017, plus GDPR compliance, and bills only for attempted tests rather than invites sent.
Who should choose HackerEarth
HackerEarth fits engineering organizations hiring developers at a steady clip, especially those running university programs or high-volume funnels where consistent benchmarking matters more than bespoke evaluation. Teams chasing employer-brand reach gain unusual leverage from the hackathon products. It is a weaker fit for small teams making two or three technical hires a year, where credit-based plans and admin tooling assume more throughput than the role count justifies. Buyers should confirm which product line a quoted plan covers, as assessments and OnScreen price separately.
Strengths
- Genuinely free, sizeable practice library (2,000+ problems, 100+ topics)
- Frequent hackathons and rated contests with real prizes and exposure
- Large 10M+ developer community that recruiters actively source from
- Credible, feature-rich assessment product (FaceCode, AI plagiarism, ATS integrations)
Watch out for
- Practice content is secondary to the recruiting business and less curated than LeetCode/HackerRank
- Assessment pricing jumps steeply from $99 to $399 and is credit-capped
- Dated UI and inconsistent editorial quality on some practice problems
- Less mindshare among learners doing pure interview prep
Key features
| Feature | What it does |
|---|
| Practice library | 2,000+ coding problems and interview questions spanning 100+ topics, from data structures to ML and AI. |
| Hackathons and contests | Regular global hackathons and rated competitive-programming challenges with leaderboards and prizes. |
| Skill Assessments + FaceCode | Paid technical screening with a live coding pair-programming environment and AI-based plagiarism detection. |
| Developer community | 10M+ developer network that doubles as a talent pool for the assessment/recruiting side. |
How HackerEarth compares
| Alternative | How it differs |
|---|
| HackerRank | Closest analog: free practice plus a larger, more polished paid assessment suite and bigger recruiter footprint. |
| LeetCode | Stronger for pure interview prep with better-curated problems and premium company-tagged questions ($35/mo). |
| CodeSignal | Practice plus assessments with a heavier emphasis on standardized scoring and AI learning tools. |
Frequently asked questions
Is HackerEarth free for developers?
Yes. The practice problems, competitive challenges, and hackathons are free to everyone. Only the recruiter-facing Assessments product (Growth, Scale, Enterprise) is paid, starting at $99/mo with a 30-day free trial.
Is HackerEarth good for coding-interview prep?
It is solid for breadth and free contest practice, but LeetCode and HackerRank have more curated, company-tagged interview content and larger prep communities.
HackerEarth ratings on other platforms
Independent user ratings from third-party review sites, linked here for transparency.
These are not our editorial score, are captured on the date shown, and may have changed since.