《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

Open Source Identity and Access Management For Modern Applications and Services

Telegram for Android source

Orchestrate everything - from scripts to data, infra, AI, and business - as code, with UI and AI Copilot. Simple. Fast. Scalable.

The automation tower defense RTS

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

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

QuestDB is a high performance, open-source, time-series database

Git Server with CI/CD, Kanban, and Packages. Seamless integration. Unparalleled experience.

1️⃣🐝🏎️ The One Billion Row Challenge -- A fun exploration of how quickly 1B rows from a text file can be aggregated with Java

BookLore: A self-hosted, multi-user digital library with smart shelves, auto metadata, Kobo & KOReader sync, BookDrop imports, OPDS support, and a built-in reader for EPUB, PDF, and comics.

Open source routing engine for OpenStreetMap. Use it as Java library or standalone web server.

React Native Date Picker is datetime picker for Android and iOS. It includes date, time and datetime picker modes. The datepicker is customizable and is supporting different languages. It's written…

Crunchy toasts for React Native. 🍞

Build better business applications, faster. No more juggling REST endpoints or deciphering GraphQL queries. Hilla seamlessly connects Spring Boot and React to accelerate application development.

Single realm, multi-tenancy for SaaS apps