Best Automated Grading Software in 2026
Updated
In short: ClassMarker is ranked #1 of 31 as of 3 October 2026, ahead of PrairieLearn and CodeGrade. The best-ranked option with a free plan is PrairieLearn. The lowest first paid tier on this page is PrairieLearn at $0.25/mo.
Automated grading tools support assessment workflows across written work, mathematics and programming. The ranking begins with PrairieLearn, CodeGrade and codePost, followed by ClassMarker and Gradescope among the early entries. Compare math and programming autograding with supported code languages and written-work OCR to understand which kinds of submissions the tools cover. LMS or LTI support and a question bank offer additional points of comparison for fitting grading into your assessment setup. Check free-plan availability and paid-from pricing as well, then weigh the listed capabilities against the work you need to assess.
31 automated grading software ranked on what their makers publish — plans and prices, free tiers, platforms and the facts on their own pages.
| # | Platform | Score | Why | From | Free plan | Paid from | Programming autograding | |
|---|---|---|---|---|---|---|---|---|
| 1 | ClassMarker | 7.4 | RecognisedAPIDocumented | — | Yes | — | — | View |
| 2 | PrairieLearn | 7.4 | RecognisedAPIDocumented | $0.25/mo | Yes | — | Yes | View |
| 3 | CodeGrade | 7.3 | RecognisedAPIDocumented | Free | Yes | — | Yes | View |
| 4 | HackerRank | 7.3 | RecognisedAPIDocumented | $165/mo | No | — | — | View |
| 5 | codePost | 7.2 | RecognisedAPIDocumented | Free | Yes | — | Yes | View |
| 6 | Codio | 6.8 | RecognisedAPIDocumented | $7.50/mo | No | 10 /user/mo | Yes | View |
| 7 | Vocareum | 6.7 | RecognisedAPIDocumented | $10/mo | No | 10 /user/mo | Yes | View |
| 8 |  MATLAB Grader | 6.0 | RecognisedAPIDocumented | Free | Yes | — | Yes | View |
| 9 |  Socrative | 6.0 | RecognisedAPIDocumented | $10/mo | Yes | 10 /user/mo | — | View |
| 10 |  Easy LMS | 5.9 | RecognisedAPIDocumented | $66.67/mo | Yes | — | — | View |
| 11 | Formative | 5.9 | RecognisedAPIDocumented | $20.75/mo | Yes | — | — | View |
| 12 | Gradescope | 5.9 | RecognisedAPIDocumented | Free | Yes | — | Yes | View |
| 13 |  Wayground (formerly Quizizz) | 5.9 | RecognisedAPIDocumented | $18/mo | Yes | 18 /user/mo | — | View |
| 14 | ClassLens | 5.7 | RecognisedAPIDocumented | $10/mo | Yes | — | No | View |
| 15 | Kattis | 5.6 | RecognisedAPIDocumented | — | Yes | — | Yes | View |
| 16 | Akindi | 5.5 | RecognisedAPIDocumented | — | Yes | — | No | View |
| 17 |  IMathAS | 5.5 | RecognisedAPIDocumented | — | Yes | — | No | View |
| 18 |  MyOpenMath | 5.5 | RecognisedAPIDocumented | — | Yes | — | — | View |
| 19 |  WeBWorK | 5.5 | RecognisedAPIDocumented | — | Yes | — | — | View |
| 20 |  DOMjudge | 5.4 | RecognisedAPIDocumented | — | Yes | — | Yes | View |
| 21 |  Numbas | 5.4 | RecognisedAPIDocumented | — | Yes | — | — | View |
| 22 | TAO | 5.4 | RecognisedAPIDocumented | — | Yes | — | — | View |
| 23 |  ZipGrade | 5.3 | RecognisedAPIDocumented | — | Yes | — | — | View |
| 24 |  Testmoz | 5.2 | RecognisedAPIDocumented | — | Yes | — | — | View |
| 25 |  Möbius Assessment | 5.1 | RecognisedAPIDocumented | — | — | — | No | View |
Is your platform on this list?
Numbered spots on this list can be sponsored. They are labelled, and the editorial order and scores never change for payment.
Questions about this list
Which automated grading software is ranked first on Inferse?
ClassMarker is ranked #1 of 31 with a score of 7.4. PrairieLearn is second and CodeGrade third.
How many of these have a free plan?
9 of the 25 on this page publish a free plan on their own pricing pages.
Which is the cheapest paid option?
On this page, PrairieLearn has the lowest first paid tier we found: $0.25/mo.
How is this list ranked?
Ranked on what each maker publishes, open and connectable first: a public API, open-source code, the depth of its documentation and a free tier to try it on. Model lists are sorted by the figure in their title, exactly as each provider publishes it. Paid placements never change a rank.