#1
freeCodeCamp.org's open-source codebase and curriculum. Learn math, programming, and computer science for free.
448K starsJun 16, 2026 pusheducationTypeScriptEducation
$ npx skills add freeCodeCamp/freeCodeCampAlternatives
ClassIsland alternatives for AI agents.
Compare similar skills by workflow fit, trust score, quality, GitHub adoption, maintenance, and install readiness.
Current skill
ClassIsland
一款功能强、可定制、跨平台，适用于班级多媒体屏幕的课表信息显示工具，可以一目了然地显示各种信息。
99
Quality
86
Trust
2.6K
Stars
#2
:books: Freely available programming books
390K starsJun 13, 2026 pusheducationPythonEducation
$ npx skills add EbookFoundation/free-programming-books#3
All Algorithms implemented in Python
222K starsJun 1, 2026 pusheducationPythonEducation
$ npx skills add TheAlgorithms/Python#4
Coding articles to level up your development skills
128K starsJun 16, 2026 pusheducationJavaScriptEducation
$ npx skills add Chalarangelo/30-seconds-of-code#5
24 Lessons, 12 Weeks, Get Started as a Web Developer
96K starsJun 14, 2026 pusheducationJavaScriptEducation
$ npx skills add microsoft/Web-Dev-For-Beginners#6
《Hello 算法》：动画图解、一键运行的数据结构与算法教程。支持简中、繁中、English、日本語，提供 Python, Java, C++, C, C#, JS, Go, Swift, Rust, Ruby, Kotlin, TS, Dart 等代码实现
127K starsApr 18, 2026 pusheducationJavaEducation
$ npx skills add krahets/hello-algo#7
AnkiDroid: Anki flashcards on Android. Your secret trick to achieve superhuman information retention.
12K starsAug 23, 2026 pusheducationKotlinEducation
$ npx skills add ankidroid/Anki-Android#8
A book series (2 published editions) on the JS language.
185K starsFeb 15, 2026 pusheducationEducation
$ npx skills add getify/You-Dont-Know-JS#9
Code. Music. Live.
12K starsJun 12, 2026 pusheducationC++Education
$ npx skills add sonic-pi-net/sonic-pi#10
A modern file manager that helps users organize their files and folders.
44K starsJun 19, 2026 pushcoding-agentsC#Developer Tools
$ npx skills add files-community/Files#11
C# application with primary purpose of farming Steam cards from multiple accounts simultaneously.
13K starsJun 16, 2026 pushautomationC#Automation
$ npx skills add JustArchiNET/ArchiSteamFarm#12
ML.NET is an open source and cross-platform machine learning framework for .NET.
9.3K starsJun 12, 2026 pushml-automationC#Machine Learning
$ npx skills add dotnet/machinelearning#13
ASP.NET Core eCommerce software. nopCommerce is a free and open-source shopping cart.
10K starsJun 15, 2026 pushcommerce-automationC#Commerce
$ npx skills add nopSolutions/nopCommerce#14
12 weeks, 26 lessons, 52 quizzes, classic Machine Learning for all
87K starsJun 9, 2026 pushml-automationJupyter NotebookMachine Learning
$ npx skills add microsoft/ML-For-Beginners#15
p5.js is a client-side JS platform that empowers artists, designers, students, and anyone to learn to code and express themselves creatively on the web. It is based on the core principles of Processing. Looking for p5.js 2.0? http://beta.p5js.org
24K starsJun 14, 2026 pushdesign-creativeJavaScriptCreative Coding
$ npx skills add processing/p5.js#16
:love_letter: A beautiful, fast and fully open source mail client for Mac, Windows and Linux.
18K starsJun 15, 2026 pushproductivity-automationJavaScriptEmail
$ npx skills add Foundry376/MailspringHow 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 ClassIsland 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.