Kattis
Kattis: A focused web platform for automated programming assessment, contests, and recruitment tests. Ranked #27 of 33 in Automated Grading Software by our editors (6.5/10); pricing: Free plan; best for programming contests and recruitment coding tests.
At a glance
- Editor score6.5 / 10
- PricingFree plan
- Best forProgramming contests and recruitment coding tests
- Free planYes
- Paid fromFree
- Programming autogradingYes
- Facts checked20 Sep 2026
Where it wins
- Automated code checking and scoring for programming submissions
- Combines contests, assignments, and recruitment assessments
- Includes reports, progress tracking, and suspicious-submission detection
Where it doesn't
- Does not provide math autograding
- Does not include written-work OCR
- Does not support LMS/LTI workflows
Our verdict on Kattis
Kattis is a web-based programming problem archive and automated judging platform for computer science educators, students, programming contest organizers, and employers evaluating software-development skills. Learners and contest participants can solve programming problems, submit code, and receive automated results. Organizations can use it for recruitment coding assessments, including candidate invitations, grading, progress tracking, reports, and plagiarism checks.
Its main strength is the breadth of programming assessment workflows in one product. Kattis supports a programming problem archive, online contests with ranklists, course assignments, and problem sets alongside recruitment assessments. Automated checking and scoring provides a consistent way to evaluate code submissions, while candidate reports and code sharing give employers additional review material. Progress tracking and suspicious-submission detection extend the product beyond basic answer checking.
Kattis is a focused choice for programming evaluation rather than a general assessment suite. The public site and archive are available without charge, while commercial recruitment services are presented through demo requests. Its scope is centered on programming: the listed capabilities do not cover math autograding, written-work OCR, or LMS/LTI workflows. Choose Kattis when programming contests, coding coursework, or software-development recruitment are the priority. Consider another product if assessments must include mathematical grading, scanned written work, or LMS/LTI integration.
Your product? Our editors can test Kattis in depth and publish a review, labelled as paid · from $149/mo →
Kattis pricing
Kattis fact sheet
| Free plan | Yes |
|---|---|
| Paid from | Free |
| Programming autograding | Yes |
| Math autograding | No |
| Written-work OCR | No |
| LMS or LTI support | No |
| Question bank | Yes |
| Supported code languages | Not verified |
| Deployment | Cloud |
| Platforms | Web |
| Compliance & security | GDPR |
| Support | Tickets, Docs |
| Built for | Small business, Mid-market, Enterprise (editorial estimate) |
| Pricing | Free plan |
| Website | kattis.com |
| Facts checked | 20 Sep 2026 |
Alternatives to Kattis
- PrairieLearnA flexible grading platform for code, math, written work, and AI-assisted assessment.9.2
- GradescopeA broad grading platform for paper, online, programming, and written work.9.0
- CodeGradeBroad language coverage, LMS connectivity, and a useful free tier for programming courses.8.9
Also Ranked In
Kattis is ranked in 2 of our directories.
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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