Java 面试 & 后端通用面试指南，覆盖计算机基础、数据库、分布式、高并发、系统设计与 AI 应用开发

《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

Learn System Design concepts and prepare for interviews using free resources.

阿里巴巴 MySQL binlog 增量订阅&消费组件

Apache Flink

AI-driven database tool and SQL client, The hottest GUI client, supporting MySQL, Oracle, PostgreSQL, DB2, SQL Server, DB2, SQLite, H2, ClickHouse, and more.

APM, Application Performance Monitoring System

🔥 人人可用的开源 BI 工具，数据可视化神器。An open-source BI tool alternative to Tableau.

✨ 开源、免费、一站式 Java 权限认证框架，让鉴权变得简单、优雅！—— 登录认证、权限认证、分布式 Session 会话、微服务网关鉴权、SSO 单点登录、OAuth2.0 统一认证、jwt 集成、API Key 秘钥授权、API 参数签名

🏆 Real-Time no-code, powerful and secure ORM 🚀 providing APIs and Docs without coding by Backend, and Frontend(Client) can customize response JSONs 🏆 实时 零代码、全功能、强安全 ORM 库 🚀 后端接口和文档零代码，前端(客户端) 定制返回 …

27天成为Java大神

MeterSphere 是新一代的开源持续测试工具，内置 AI 助手，让软件测试工作更简单、更高效，不再成为持续交付的瓶颈。

新一代爬虫平台，以图形化方式定义爬虫流程，不写代码即可完成爬虫。

Apache JMeter open-source load testing tool for analyzing and measuring the performance of a variety of services

High-quality QR Code generator library in Java, TypeScript/JavaScript, Python, Rust, C++, C.

Apache Hive

esProc SPL is a JVM-based programming language designed for structured data computation, serving as both a data analysis tool and an embedded computing engine.

Database Subsetting and Relational Data Browsing Tool.

🔥 Cordys CRM 是新一代开源 AI CRM 系统，融合信息化、数字化与智能化，支持私有化部署，Skills 技能现已上线，全面驱动 OpenClaw AI 助理。