Top Java Frameworks & Libraries for server

A barebones WebSocket client and server implementation written in 100% Java.

Activiti is a light-weight workflow and Business Process Management (BPM) Platform targeted at business people, developers and system admins. Its core is a super-f...

Asynchronous socket, http(s) (client+server) and websocket library for android. Based on nio, not threads....

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

Examples and server integrations for generating the Swagger API Specification, which enables easy access to your REST API...

A Flexible and Powerful Parameter Server for large-scale machine learning

Main repository for GoCD - Continuous Delivery server

Tiny, easily embeddable HTTP server in Java.

Free and open source log management

Socket.IO server implemented on Java. Realtime java framework

Realtime Client Server Framework for the JVM, supporting WebSockets with Cross-Browser Fallbacks

The open big data serving engine. https://vespa.ai

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

:cherries: Web server and web framework of Android platform.

Local server for Android's HierarchyViewer

WildFly Application Server

An XMPP server licensed under the Open Source Apache License.

An blocking socket client for Android applications.

Jitsi Videobridge is a WebRTC compatible video router or SFU that lets build highly scalable video conferencing infrastructure (i.e., up to hundreds of conferences...

http-kit is a minimalist, event-driven, high-performance Clojure HTTP server/client library with WebSocket and asynchronous support...

SUSI.AI server backend - the Artificial Intelligence server for personal assistants https://api.susi.ai...

Server supporting the Signal Private Messenger applications on Android, Desktop, and iOS

Blynk is an Internet of Things Platform aimed to simplify building mobile and web applications for the Internet of Things. Easily connect 400+ hardware models like...

Thymeleaf is a modern server-side Java template engine for both web and standalone environments.

Distributed Peer-to-Peer Web Search Engine and Intranet Search Appliance

A Full-Stack mobile app, including Android & Server, Simple-Poem 简诗. You can write poem in graceful & traditional Chinese style....

An easy-to-use BI server built for SQL lovers. Power data analysis in SQL and gain faster business insights....

A library that checks for your apps' updates on Google Play, GitHub, Amazon, F-Droid or your own server. API 9+ required....

Backend implementation for the Apple/Google exposure notification API.

A community-driven project led by the Spring Security team and is focused on delivering Authorization Server support to the Spring community...

A bridge/proxy allowing you to connect to Minecraft: Java Edition servers with Minecraft: Bedrock edition....

:satellite: :cloud: :notes:Airsonic, a Free and Open Source community driven media server (fork of Subsonic and Libresonic)...

The Spring Authorization Server project is focused on delivering OAuth 2.1 Authorization Server support to the Spring community....