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Top 23 Spring Open-Source Projects
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Spring Boot
Spring Boot helps you to create Spring-powered, production-grade applications and services with absolute minimum fuss.
In this tutorial, I'll walk you through how I moved beyond basic logging by instrumenting a Kotlin and Spring Boot backend service with OpenTelemetry. You'll learn how OpenTelemetry's tracing model gives you the execution context that logs alone can't provide. By the end of this guide, you'll have a working instrumented service and a clear mental model for building more observable backend systems.
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Project mention: Why AOP Feels Magical in Spring Boot — And Why Developers Stopped Talking About It | dev.to | 2026-05-17
Spring Framework Documentation https://spring.io/projects/spring-framework
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Project mention: React Ref Synchronization: Fixing Hydration and Mutable Pointer Anomalies | dev.to | 2026-05-21
Merged PR: motiondivision/motion#3366 — fix: update useMotionRef to properly handle externalRef changes
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Redisson
Redisson: Valkey & Redis Java Client and Real-Time Data Platform. Sync/Async/RxJava/Reactive API. Over 50 Valkey and Redis based Java objects and services: Set, Multimap, SortedSet, Map, List, Queue, Deque, Semaphore, Lock, AtomicLong, Map Reduce, Bloom filter, Spring, Tomcat, Scheduler, JCache API, Hibernate, RPC, local cache..
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apitable
🚀🎉📚 APITable, an API-oriented low-code platform for building collaborative apps and better than all other Airtable open-source alternatives.
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09.12.2022 - Github Security Advisory and CVE assignment
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Activiti
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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RuoYi
:tada: (RuoYi)官方仓库 基于SpringBoot的权限管理系统 易读易懂、界面简洁美观。 核心技术采用Spring、MyBatis、Shiro没有任何其它重度依赖。直接运行即可用
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library
A comprehensive Domain-Driven Design example with problem space strategic analysis and various tactical patterns.
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spring-cloud-gateway
An API Gateway built on Spring Framework and Spring Boot providing routing and more.
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koog
Koog is a JVM (Java and Kotlin) framework for building predictable, fault-tolerant and enterprise-ready AI agents across all platforms – from backend services to Android and iOS, JVM, and even in-browser environments. Koog is based on our AI products expertise and provides proven solutions for complex LLM and AI problems
Project mention: Building an AI task generator for Vikunja that doesn't trust itself | dev.to | 2026-05-31The agent workflow runs on Koog, JetBrains' agent framework for Kotlin. The frontend is React + Vite. Everything ships as Docker Compose behind nginx with TLS.
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Project mention: Building AI Agents with Spring AI and Amazon Bedrock AgentCore - Part 1 Introduction to the series | dev.to | 2026-04-27
I'll rewrite the agent using Embabel, which builds upon Spring AI. Embabel is a framework for authoring agentic flows on the JVM that seamlessly mix LLM-prompted interactions with code and domain models. Supports intelligent path finding towards goals.
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Project mention: $160M VC-backed company just killed my EU trademark for a small OSS project | news.ycombinator.com | 2025-08-13
Did you also lose the name in GitHub?
Currently:
https://github.com/deepkit => 404
https://github.com/deepkit/deepkit-framework => 301 redirect to https://github.com/marcj/untitled-code
https://deepkit.io/ => still up
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spring-cloud-kubernetes
Kubernetes integration with Spring Cloud Discovery Client, Configuration, etc...
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NOTE:
The open source projects on this list are ordered by number of github stars.
The number of mentions indicates repo mentiontions in the last 12 Months or
since we started tracking (Dec 2020).
Spring discussion
Spring related posts
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Building AI Agents with Spring AI and Amazon Bedrock AgentCore - Part 5 Deploy MCP client for Conference application on AgentCore Runtime
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Why AOP Feels Magical in Spring Boot — And Why Developers Stopped Talking About It
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Building AI Agents with Spring AI and Amazon Bedrock AgentCore - Part 1 Introduction to the series
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What Happens Between @SqsListener and Your Method in Spring Cloud AWS SQS
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Spring AI SDK for Amazon Bedrock AgentCore: Build Production-Ready Java AI Agents
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Show HN: Zig parser in ~60 lines of JavaScript
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JVM Rainbow – Mixing Java Kotlin Scala Clojure and Groovy
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A note from our sponsor - SaaSHub
www.saashub.com | 22 Jun 2026
Index
What are some of the best open-source Spring projects? This list will help you:
| # | Project | Stars |
|---|---|---|
| 1 | JavaGuide | 156,440 |
| 2 | Spring Boot | 80,984 |
| 3 | Spring | 60,031 |
| 4 | spring-boot-demo | 34,106 |
| 5 | motion | 32,408 |
| 6 | Redisson | 24,357 |
| 7 | apitable | 15,387 |
| 8 | spring-boot-admin | 12,833 |
| 9 | Activiti | 10,531 |
| 10 | Spring Security | 9,534 |
| 11 | RuoYi | 8,350 |
| 12 | springfox | 5,932 |
| 13 | library | 5,726 |
| 14 | spring-cloud-netflix | 4,967 |
| 15 | spring-cloud-gateway | 4,878 |
| 16 | koog | 4,366 |
| 17 | BouncyLayout | 4,252 |
| 18 | springdoc-openapi | 3,719 |
| 19 | grpc-spring | 3,707 |
| 20 | embabel-agent | 3,691 |
| 21 | deepkit | 3,551 |
| 22 | spring-cloud-kubernetes | 3,534 |
| 23 | Spring Data JPA | 3,263 |
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