Conductor is an event driven agentic workflow engine providing durable and highly resilient execution engine for applications and AI Agents
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Open source alternative to Auth0 / Firebase Auth / AWS Cognito
LangChain4j is an idiomatic, open-source Java library for building LLM-powered applications on the JVM. It offers a unified API over popular LLM providers and vector stores, and makes implementing tool calling (including MCP support), agents and RAG easy. It integrates seamlessly with enterprise Java frameworks like Quarkus and Spring Boot.
Apache ZooKeeper
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.
Flyway by Redgate • Database Migrations Made Easy.
A compact and highly efficient workflow and Business Process Management (BPM) platform for developers, system admins and business users.
Main Liquibase Source
Brings the popular ruby faker gem to Java
Automated driver management and other helper features for Selenium WebDriver in Java
:gem:Collection of algorithms and data structures
TEAMMATES is a feedback management tool for education
Distributed Big Data Orchestration Service
A functional reactive framework for managing state evolution and side-effects.
Apache OFBiz is an open source product for the automation of enterprise processes. It includes framework components and business applications for ERP, CRM, E-Business/E-Commerce, Supply Chain Management and Manufacturing Resource Planning. OFBiz provides a foundation and starting point for reliable, secure and scalable enterprise solutions.
(Official) The DSpace digital asset management system that powers your Institutional Repository
Get rid of the boilerplate code in properties based configuration.
Binary Artifact Management Tool
(UNMAINTAINED) inspectIT is the leading Open Source APM (Application Performance Management) tool for analyzing your Java (EE) applications.
Gravitee.io - OpenSource API Management
Learning Management System OpenOlat
A Java library to use the OpenAI Api in the simplest possible way.
Anahata ASI - Artificial Super Intelligence - Cross-Platform, Modular, Enterprise Ready, Open Source, Pure Java, AGI and ASI Containers. Context Window Garbage Collector, Stateful Toolkits, Flight Recorder. Autonomous Observable Auditable JVM Agent with JIT java code execution. Anahata ASI SDK, Anahata ASI Desktop, Anahata ASI Studio - NetBeans.
Ultra-lightweight Java DI framework with JSR-330 support, fast classpath scanning, and zero boilerplate. Minimal alternative to Spring/Guice.