Build great things at any scale
External configuration (server and client) for Spring Cloud
The modular web framework for Java and Kotlin
Mirror of Apache Struts
The OWASP ZAP core project
Open source routing engine for OpenStreetMap
Now continued as OculiX — see oculix.org
Extremely fast enterprise server framework, can be used in RPC
Build cross-platform native progressive web apps for iOS and Android
Clojure HTTP server/client library with WebSocket support
Thymeleaf is a modern server-side Java template engine for web
Internet Archive's open-source, web-scale, web crawler project
Simple library for building production-ready RESTful web services
A scalable web crawler framework for Java
A CLI tool to extract server certificates
An extensible Java library for HTTP request and response logging
Kafka Web UI
Hawtio web console helps you manage your JVM stuff and stay cool
Skript is a Bukkit plugin which allows server admins
Apache Shiro
OpenAPI Generator allows generation of API client libraries
Template-driven engine to generate documentation
A Java library for sending APNs (iOS/macOS/Safari)
RStudio is an integrated development environment (IDE) for R
Next-gen container development platform, workspace server & cloud IDE