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.
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Jodd! Lightweight. Java. Zero dependencies. Use what you like.
- java
- jodd
- micro-framework
- ioc
Lightweight, fast, stable, programmable component-based rule engine — where AI Agents orchestrate just like ordinary components. Uniquely designed DSL: component reuse, sync/async & dynamic orchestration, multi-language scripting, nested rules, hot deployment and smooth refresh. If you can orchestrate LiteFlow, you can orchestrate AI.
A fast, lightweight and more productive microservices framework
Apache Linkis builds a computation middleware layer to facilitate connection, governance and orchestration between the upper applications and the underlying data engines.
Unirest in Java: Simplified, lightweight HTTP client library.
SOFABolt is a lightweight, easy to use and high performance remoting framework based on Netty.
- sofa-rpc
- sofastack
- netty
- sofa-bolt
🦎 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.
Fast, lightweight, and RFC 4180 compliant CSV library for Java. Zero dependencies, ~90 KiB. Trusted by Apache NiFi, JUnit, and Neo4j.
- csv
- java
- csv-parser
- csv-reader
PipelinR is a lightweight command processing pipeline ❍ ⇢ ❍ ⇢ ❍ for your Java awesome app.
- java
- architecture
- service-layer
- pipes-and-filters
Fast and Easy mapping from database and csv to POJO. A java micro ORM, lightweight alternative to iBatis and Hibernate. Fast Csv Parser and Csv Mapper
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
- java-frameworks
⚗️ Lightweight HTTP extensions for Java & Kotlin
- jackson
- gson
- jaxb
- protobuf
A simple, lightweight and powerful field validation library for Android.
- android
- android-library
- annotations
- java
Lightweight Java library for reading and writing fixed-width / fixed-length flat files using annotations on POJOs — for banking, payroll, EDI, mainframe, and batch integrations.
- annotations
- banking
- batch-processing
- edi
Lightweight JsonPath for Vert.x
- json
- jsonpath
- vertx