DOMjudge vs Gradescope

DOMjudge is a free system that automatically evaluates programming contest submissions and provides web interfaces for teams, juries, and the public. It is designed mainly for contests such as ICPC, where teams work on site against a fixed problem set and time frame. Judging can run across multiple judge hosts, and the system is designed to scale. Administrator tools support rejudging, clarifications, and detailed submission and judging information. A modular structure allows languages or compilers to be added, while a JSON REST API implements the ICPC Contest API with extensions, except for the optional team-members endpoint. DOMjudge imports Kattis Problem Tool packages, and Polygon2DOMjudge converts Codeforces Polygon exports. You can download and run it yourself; official Docker images are available for the domserver and judgehost. The listed latest stable release is version 9.0.1, dated 11 June 2026.

Gradescope is an assessment platform for instructors who administer and grade work completed online or in class. It handles variable-length assignments, including problem sets and projects, as well as fixed-format worksheets, quizzes, bubble sheets, and exams. Instructors can grade with flexible rubrics, provide detailed feedback, and revise rubric decisions on work that has already been graded. For programming work, students can submit code from GitHub or Bitbucket; instructors can use autograders or add inline comments during manual grading. Gradescope also offers question- and rubric-level statistics, with grade and data exports. Its AI can group similar responses for instructor review on some question types; Answer Groups and AI-assisted grading require an Institutional license. That license also enables integrations with Blackboard, Brightspace, Canvas, Moodle, and Sakai. Without it, rosters can be imported by CSV and grades downloaded for LMS upload. The free Basic plan is listed at free. Android and iOS apps support student submissions and grade viewing, not instructor workflows.