freeCodeCamp.org's open-source codebase and curriculum. Learn math, programming, and computer science for free.

• UpdatedFeb 20, 2026
• TypeScript

A curated list of free courses with certifications. Also available athttps://free-certifications.com/

• UpdatedJul 22, 2025

FCC China open source codebase and curriculum. Learn to code and help nonprofits.

• UpdatedJul 16, 2023
• CSS

A set of exercises to prepare for Certified Kubernetes Application Developer exam by Cloud Native Computing Foundation

• UpdatedDec 26, 2025

Online resources that will help you prepare for taking the CNCF CKA 2020 "Kubernetes Certified Administrator" Certification exam. with time, This is not likely the comprehensive up to date list - please make a pull request if there something that should be added here.

• UpdatedJan 5, 2025
• Shell

Google Cloud Platform Certification resources.

• UpdatedJun 8, 2024

AWS Certified Cloud Practitioner Short Notes And Practice Exams (CLF-C02)

• UpdatedFeb 20, 2026
• HTML

Curated resources help you prepare for the CNCF/Linux Foundation CKS 2021 "Kubernetes Certified Security Specialist" Certification exam. Please provide feedback or requests by raising issues, or making a pull request. All feedback for improvements are welcome. thank you.

• UpdatedJun 30, 2025
• AGS Script

A collection of awesome software, libraries, documents, books, resources and cools stuffs about security.

• UpdatedFeb 13, 2026

Resources to help you get GitHub certified ✨

• UpdatedAug 19, 2024

Docker Certified Associate Exam Preparation Guide

• UpdatedFeb 17, 2026

Latest Linux Foundation Coupon Codes For Certification, Courses, Skillcreds, IT Professional Programs and Skillcreds

• UpdatedFeb 17, 2026

In-depth and hands-on practice for acing the exam.

• UpdatedJan 5, 2026
• JavaScript

60 Cybersecurity Projects | Certification Roadmaps |Everything you need to build your cybersecurity portfolio

• UpdatedFeb 20, 2026
• Python

Docker Certification Associate preparation guide - a list of resources to help you prepare for a successful certification

• UpdatedJun 5, 2025

Prepare for GitHub Certification exams!

• UpdatedFeb 16, 2026
• HTML

µC/OS-II is a preemptive, highly portable, and scalable real-time kernels. Designed for ease of use on a huge number of CPU architectures.

• UpdatedJan 5, 2023
• C

List of topic-specific resources to help you prepare for Symfony certification

• UpdatedApr 27, 2024

☁️ A curated list of AWS certification materials: videos courses, practice exams, prep tips, etc.

• UpdatedOct 26, 2022

A Burp Suite Extension that try to find all sub-domain, similar-domain and related-domain of an organization automatically! 基于流量自动收集整个企业或组织的子域名、相似域名、相关域名的burp插件

• UpdatedJul 16, 2023
• Java