Best open-source Java projects

A CLI tool that extracts TLS/SSL certificates from servers and exports them as print output, PEM, DER, or p12/JKS truststores.

A stand-alone Java tool that exports Minecraft and Hytale worlds into USD (Universal Scene Description) for use in 3D animation and rendering pipelines.

An MCP server that exposes Ghidra's reverse-engineering functions so LLM clients can decompile and analyze binaries.

Open-source Java application for load testing and measuring the performance of web applications and other services.

Open-source MPP real-time analytics and search database for SQL analytics, lakehouse queries, and hybrid JSON, full-text, and vector search.

Open-source desktop app for managing BibTeX and BibLaTeX bibliography libraries, collecting references and formatting citations.

Generates API client SDKs, server stubs, and documentation in many languages from an OpenAPI (v2/v3) specification.