Top JAVA GitHub Repositories & Tools (2026)

Fast Rust bundler for JavaScript/TypeScript with Rollup-compatible API.

Desktop environment in the browser

Admin UI for administration of spring boot applications

Apache ZooKeeper

The JavaScript and API powered WordPress.com

OpenLayers

Apereo CAS - Identity & Single Sign On for all earthlings and beyond.

A tool for generating code based on a GraphQL schema and GraphQL operations (query/mutation/subscription), with flexible support for custom plugins.

React Native's Animated library reimplemented

A compact and highly efficient workflow and Business Process Management (BPM) platform for developers, system admins and business users.

Polyglot document intelligence with a Rust core: extract text, metadata, images, tables, and structured data from 106 formats across 140 file extensions, plus code intelligence for 371 languages. Fifteen bindings, with CLI, REST API, and MCP server.

TypeScript ORM for Node.js based on Data Mapper, Unit of Work and Identity Map patterns. Supports MongoDB, MySQL, MariaDB, MS SQL Server, PostgreSQL and SQLite/libSQL databases.

Compose Multiplatform, a modern UI framework for Kotlin that makes building performant and beautiful user interfaces easy and enjoyable.

Beautifier for javascript

Efficient reliable UDP unicast, UDP multicast, and IPC message transport

Apache Beam is a unified programming model for Batch and Streaming data processing.

Apache Tomcat

Powerfull download accelerator and video downloader

Interactive Tables and Data Grids for JavaScript

🔥 Official Firecrawl MCP Server - Adds powerful web scraping and search to Cursor, Claude and any other LLM clients.