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Tags: Backend and APIs
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1–24 of 37 · Most stars

Netty project - an event-driven asynchronous network application framework

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-fast and rock-solid BPMN 2 process engine for Java. It's open-source and distributed under the Apache license. Activiti runs in any Java application, on a server, on a cluster or in the cloud. It integrates perfectly with Spring, it is extremely lightweight and based on simple concepts.

Apache KIE (Knowledge Is Everything) is the home of Drools, OptaPlanner, jBPM, and Kogito.

  • rule-engine
  • java
  • dmn
  • hacktoberfest

Your go-to microservice framework for any situation, from the creator of Netty et al. You can build any type of microservice leveraging your favorite technologies, including gRPC, Thrift, Kotlin, Retrofit, Reactive Streams, Spring Boot and Dropwizard.

Manifold is a Java compiler plugin, its features include Metaprogramming, Properties, Extension Methods, Operator Overloading, Templates, a Preprocessor, and more.

  • java
  • intellij
  • json
  • template-engine

ServiceComb Java Chassis is a Software Development Kit (SDK) for rapid development of microservices in Java, providing service registration, service discovery, dynamic routing, and service management features

  • servicecomb

Open-source framework for native apps from one Java codebase, with a custom-rendered UI you control across iOS, Android, desktop, web, and watches.

🦎 A lightweight, streaming-native, multi-protocol gateway for AI, APIs, and real-time data. Route LLM requests across providers, govern MCP tools, and connect Kafka, MQTT, and HTTP through one high-performance engine with shared security and observability.

The Java microservice lib. QBit is a reactive programming lib for building microservices - JSON, HTTP, WebSocket, and REST. QBit uses reactive programming to build elastic REST, and WebSockets based cloud friendly, web services. SOA evolved for mobile and cloud. ServiceDiscovery, Health, reactive StatService, events, Java idiomatic reactive programming for Microservices.

Multitenant backend server for building web and mobile apps rapidly. The backend for busy developers. (self-hosted or hosted)

An open source, a high-performance hybrid integration platform that allows developers quick integration with any application, data, or system.

A lightweight, modular Java application framework for web and CLI development, designed for AI integration and plugin-based architecture. Enabling developers to create robust solutions with ease for building efficient and scalable applications.

  • java
  • lightweight-framework
  • modular-design
  • tinystruct

graphql-maven-plugin is a Maven Plugin for GraphQL, based on graphql-java. It accelerates the development for both the client and the server, by generating the Java code. It allows a quicker development when in contract-first approach, by avoiding to code the boilerplate code.

OpenIG is an open-source identity gateway (reverse-proxy) that secures, routes, and manages web traffic. It enables authentication, access control, and integration with identity providers, delivering single sign-on and API security for web and cloud applications.