freeCodeCamp.org's open-source codebase and curriculum. Learn math, programming, and computer science for free.
- learn-to-code
- nonprofits
- programming
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Repository Index
47,133 repositories indexed
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Interactive roadmaps, guides and other educational content to help developers grow in their careers.
- computer-science
- roadmap
- developer-roadmap
- frontend-roadmap
A complete computer science study plan to become a software engineer.
- computer-science
- interview
- programming-interviews
- study-plan
🎓 Path to a free self-taught education in Computer Science!
- computer-science
- awesome-list
- courses
- curriculum
📝 Algorithms and data structures implemented in JavaScript with explanations and links to further readings
- javascript
- algorithms
- algorithm
- javascript-algorithms
:books: 技术面试必备基础知识、Leetcode、计算机操作系统、计算机网络、系统设计
Crack LeetCode, not only how, but also why.
Papers from the computer science community to read and discuss.
- computer-science
- read-papers
- meetup
- papers
A collection of (mostly) technical things every software developer should know about
- cc-by
- computer-science
- educational
- novice
Turn any PDF or image document into structured data for your AI. A powerful, lightweight OCR toolkit that bridges the gap between images/PDFs and LLMs. Supports 100+ languages.
- ocr
- chineseocr
- pdf2markdown
- pp-ocr
12 weeks, 26 lessons, 52 quizzes, classic Machine Learning for all
- ml
- data-science
- machine-learning
- machine-learning-algorithms
Explain complex systems using visuals and simple terms. Help you prepare for system design interviews.
- aws
- cloud-computing
- coding-interviews
- computer-science
List of Computer Science courses with video lectures.
Transforms complex documents like PDFs and Office docs into LLM-ready markdown/JSON for your Agentic workflows.
The 30 Days of Python programming challenge is a step-by-step guide to learn the Python programming language in 30 days. This challenge may take more than 100 days. Follow your own pace. These videos may help too: https://www.youtube.com/channel/UC7PNRuno1rzYPb1xLa4yktw
Apache Superset is a Data Visualization and Data Exploration Platform
- superset
- apache
- apache-superset
- data-visualization
The Patterns of Scalable, Reliable, and Performant Large-Scale Systems
- system-design
- backend
- scalability
- interview
:books: List of awesome university courses for learning Computer Science!
scikit-learn: machine learning in Python
Deep Learning for humans
Turn any AI agent into an AI Scientist. The #1 Agent Skills library for science, used by 250,000+ scientists worldwide. 177 ready-to-use validated skills plus 100+ scientific databases covering biology, chemistry, medicine, and drug discovery. Compatible with Cursor, Claude Code, Codex, Pi, Antigravity, and the open Agent Skills standard.
- ai-scientist
- bioinformatics
- chemoinformatics
- claude
LeetCode Solutions: A Record of My Problem Solving Journey.( leetcode题解，记录自己的leetcode解题之路。)
A collection of learning resources for curious software engineers
- read-articles
- programmer
- professional
- scalability
Python Data Science Handbook: full text in Jupyter Notebooks