《Hello 算法》：动画图解、一键运行的数据结构与算法教程。支持 Python, Java, C++, C, C#, JS, Go, Swift, Rust, Ruby, Kotlin, TS, Dart 代码。简体版和繁体版同步更新，English version in translation

Design patterns implemented in Java

All Algorithms implemented in Java

Google core libraries for Java

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

Free universal database tool and SQL client

A browser automation framework and ecosystem.

Mirror of Apache Kafka

Open Source Identity and Access Management For Modern Applications and Services

OpenAPI Generator allows generation of API client libraries (SDK generation), server stubs, documentation and configuration automatically given an OpenAPI Spec (v2, v3)

a fast, scalable, multi-language and extensible build system

Jenkins automation server

JDK main-line development https://openjdk.org/projects/jdk

GraalVM compiles applications into native executables that start instantly, scale fast, and use fewer compute resources 🚀

ANTLR (ANother Tool for Language Recognition) is a powerful parser generator for reading, processing, executing, or translating structured text or binary files.

Apache Hadoop

Quarkus: Supersonic Subatomic Java.

A standalone Java Decompiler GUI

The ZAP by Checkmarx Core project

Cryptomator for Windows, macOS, and Linux: Secure client-side encryption for your cloud storage, ensuring privacy and control over your data.

Very spicy additions to the Java programming language.

Generate diagrams from textual description

🔎 Open source distributed and RESTful search engine.

Server supporting the Signal Private Messenger applications on Android, Desktop, and iOS

Continuous Inspection

LangChain4j is an open-source Java library that simplifies the integration of LLMs into Java applications through a unified API, providing access to popular LLMs and vector databases. It makes impl…

Testcontainers is a Java library that supports JUnit tests, providing lightweight, throwaway instances of common databases, Selenium web browsers, or anything else that can run in a Docker container.

Apache Tomcat

Free and open log management

AutoMQ is a diskless Kafka® on S3. 10x Cost-Effective. No Cross-AZ Traffic Cost. Autoscale in seconds. Single-digit ms latency. Multi-AZ Availability.