CodeGrade vs DOMjudge

CodeGrade is an online coding education environment combining an autograder, browser editor, interactive terminal, and AI assistant. The autograder gives instant feedback across more than 175 programming languages. Students work in a real Ubuntu environment without installing software, connect GitHub or GitLab repositories, and submit through Git pushes. Instructors can configure AI behavior per assignment, review conversation logs, comment on code lines, reuse feedback snippets, and support peer review. LTI integrations connect with Canvas, Blackboard, Moodle, Brightspace, Sakai, and Open edX, including grade and roster synchronization. Exam controls include session lockdown, IP restrictions, access passwords, and proctoring integrations. A full API supports course setup automation and analytics retrieval. The Free plan costs nothing and allows up to 50 students per course, with editor, drag-and-drop autograding, inline feedback, rubrics, GitHub integration, and community support. Starter costs $24, paid once per student/course; Advanced costs $39, paid once.

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.