#1
:books: Freely available programming books
390K starsJun 13, 2026 pusheducationPythonEducation
$ npx skills add EbookFoundation/free-programming-booksAlternatives
Submitty alternatives for AI agents.
Compare similar skills by workflow fit, trust score, quality, GitHub adoption, maintenance, and install readiness.
Current skill
Submitty
Homework Submission, Automated Grading, and TA grading system.
86
Quality
86
Trust
774
Stars
#2
专注于网课系统，网校系统，在线教育系统，知识付费系统。名符其实的开源，可免费商用。docker容器化部署，极速搭建专属课程点播，课程直播学习平台。
1.2K starsJun 9, 2026 pusheducationPHPEducation
$ npx skills add xiaochong0302/course-tencent-cloud#3
Hedy is a gradual programming language to teach children programming. Gradual languages use different language levels, where each level adds new concepts and syntactic complexity. At the end of the Hedy level sequence, kids master a subset of syntactically valid Python.
1.6K starsJun 15, 2026 pusheducationCSSEducation
$ npx skills add hedyorg/hedy#4
Learn Godot's GDScript programming language from zero, right in your browser, for free.
2.7K starsJun 12, 2026 pusheducationGDScriptEducation
$ npx skills add GDQuest/learn-gdscript#5
Sakai is a freely available, feature-rich technology solution for learning, teaching, research and collaboration. Sakai is an open source software suite developed by a diverse and global adopter community.
1.2K starsJun 15, 2026 pusheducationJavaEducation
$ npx skills add sakaiproject/sakai#6
:abacus: Algorithms and Data Structures in several Programming Languages
1.1K starsMay 21, 2026 pusheducationPythonEducation
$ npx skills add kelvins/algorithms-and-data-structures#7
Kolibri Learning Platform: the offline app for universal education
1.1K starsJun 13, 2026 pusheducationPythonEducation
$ npx skills add learningequality/kolibri#8
万岳教育的web+后台管理系统。万岳教育系统(wanyue-education)，自主研发集知识付费、直播授课、在线教育功能为一体的在线/直播/题库/考试(exam)的教育平台系统
1.0K starsMar 25, 2025 pusheducationPHPEducation
$ npx skills add WanyueKJ/education-online#9
All Algorithms implemented in Python
222K starsJun 1, 2026 pusheducationPythonEducation
$ npx skills add TheAlgorithms/Python#10
24 Lessons, 12 Weeks, Get Started as a Web Developer
96K starsJun 14, 2026 pusheducationJavaScriptEducation
$ npx skills add microsoft/Web-Dev-For-Beginners#11
AnkiDroid: Anki flashcards on Android. Your secret trick to achieve superhuman information retention.
11K starsJun 16, 2026 pusheducationKotlinEducation
$ npx skills add ankidroid/Anki-Android#12
A GPT-4 AI Tutor Prompt for customizable personalized learning experiences.
30K starsSep 30, 2025 pusheducationEducationClaude Code
$ npx skills add JushBJJ/Mr.-Ranedeer-AI-Tutor#13
A free, online learning platform to make quality education accessible for all.
6.7K starsJun 16, 2026 pusheducationPythonEducation
$ npx skills add oppia/oppia#14
CTFs as you need them
6.7K starsJun 16, 2026 pusheducationPythonEducation
$ npx skills add CTFd/CTFd#15
A digital logic designer and circuit simulator.
5.8K starsJun 12, 2026 pusheducationJavaEducation
$ npx skills add hneemann/Digital#16
Code for my talks on the No Boilerplate channel
3.9K starsMay 24, 2026 pusheducationHTMLEducation
$ npx skills add 0atman/noboilerplateHow to choose
When should you switch?
Use an alternative when it has a clearer install path, higher trust score, fresher maintenance, or better platform fit for your current agent stack. Keep Submitty if it already passes your workflow test and repository review.
Next step
Compare top candidates side by side
Open the compare page, test the install commands in a sandbox, and check each repository before using a skill in production.