Top Java Repositories

A free, open-source beginner-friendly tutorial on data structures and algorithms, featuring animated illustrations and one-click runnable code in 12+ languages (Python, Java, C++, Go, etc.), with multilingual reading support.

GitHub Chinese Top Charts helps developers discover high-quality Chinese-language projects on GitHub. It features categorized rankings for software and resources across multiple programming languages, enabling efficient learning and exploration without language barriers.

A comprehensive collection of Java design patterns implemented by experienced developers from the open-source community. Each pattern includes well-commented source code examples, detailed explanations, and practical usage scenarios to help developers build better, more maintainable software architectures.

An open-source, self-hosted PDF platform with 50+ tools for editing, merging, splitting, signing, redacting, OCR, and converting PDFs. Supports desktop, browser, and on-prem deployment with REST APIs and no-code workflow automation, keeping all document processing fully private.

mall is a comprehensive e-commerce system featuring both a storefront and an admin management panel. Built with Spring Boot and MyBatis, it supports Docker deployment and includes modules for product search, shopping cart, order processing, and member management.

Spring Boot helps you create Spring-powered, production-grade applications and services with absolute minimum fuss. It provides an opinionated view of the Spring platform for rapid development.

A comprehensive guide for experienced Java backend developers, covering core topics like high concurrency, distributed systems, high availability, microservices, and big data processing.

Elasticsearch is a distributed, RESTful search and analytics engine capable of solving a growing number of use cases. It is the heart of the Elastic Stack, providing near real-time search, vector search, and integration with generative AI applications on production-scale workloads.

Demonstrates LeetCode problem solutions through animations, featuring detailed analysis, beautiful illustrations, and easy-to-understand visualizations to help developers intuitively grasp core data structure and algorithm concepts.

Ghidra is a software reverse engineering (SRE) framework

All Algorithms implemented in Java

Everything you need to know to get the job.

Spring Framework

Termux - a terminal emulator application for Android OS extendible by variety of packages.

Google core libraries for Java

Free universal database tool and SQL client

Dex to Java decompiler

A curated list of awesome frameworks, libraries and software for the Java programming language.

RxJava – Reactive Extensions for the JVM – a library for composing asynchronous and event-based programs using observable sequences for the Java VM.