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Top 23 Spring Open-Source Projects
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AppSignal
Monitoring that respects your time & budget. APM, error tracking, and dashboards for modern web apps. Ten-minute setup, transparent flat pricing, and support from engineers who actually use the product.
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Spring Boot
Spring Boot helps you to create Spring-powered, production-grade applications and services with absolute minimum fuss.
Spring Boot uses the familiar MAJOR.MINOR.PATCH format, but the project team states explicitly that strict Semantic Versioning is practically impossible for Boot. Otherwise, the major version would have to increase far too often.
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So we copied Tokenizer, Token and TokenKind from Spring's spel.standard package, under Apache-2.0, into a package of the same name in our own tree — which is what puts those package-private types within reach.
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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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SaaSHub
SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives
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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 Practical AI Agents with Koog 1.0: An Engineer's Perspective | dev.to | 2026-07-16Official Koog Documentation
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Project mention: Building AI Agents with Embabel, Spring AI and Amazon Bedrock AgentCore - Part 4 Upgrade sample application to Embabel 1.5 | dev.to | 2026-09-07
Recently, the Embabel team released version 1.5, which supports Spring Boot 4.x / Spring AI 2.x. In this article, we'll explain how to migrate our sample application to the Embabel 1.5.x version. You can find the final version of the application in my GitHub repository.
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spring-cloud-kubernetes
Kubernetes integration with Spring Cloud Discovery Client, Configuration, etc...
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SaaSHub
SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives
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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New CVEs every day, migrations every sprint: I built an autopilot for both
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Building AI Agents with Embabel, Spring AI and Amazon Bedrock AgentCore - Part 4 Upgrade sample application to Embabel 1.5
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Multi-Tenant Query Filtering That Doesn't Touch Your Controllers
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Rod Johnson Is Back - and He's Bringing AI Agents to Java
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Natural IDs in your database. I am telling you the last time!
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Building a Scalable Order Management System with CQRS, Event Sourcing, and Axon Framework
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Why Java Is Still Important and Relevant in 2026
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A note from our sponsor - AppSignal
www.appsignal.com | 10 Oct 2026
Index
What are some of the best open-source Spring projects? This list will help you:
| # | Project | Stars |
|---|---|---|
| 1 | JavaGuide | 159,060 |
| 2 | Spring Boot | 81,547 |
| 3 | Spring | 60,280 |
| 4 | spring-boot-demo | 34,090 |
| 5 | motion | 33,917 |
| 6 | Redisson | 24,411 |
| 7 | apitable | 15,637 |
| 8 | spring-boot-admin | 12,854 |
| 9 | Activiti | 10,542 |
| 10 | Spring Security | 9,645 |
| 11 | RuoYi | 8,598 |
| 12 | springfox | 5,926 |
| 13 | library | 5,873 |
| 14 | spring-cloud-netflix | 4,967 |
| 15 | spring-cloud-gateway | 4,909 |
| 16 | koog | 4,600 |
| 17 | embabel-agent | 4,486 |
| 18 | BouncyLayout | 4,239 |
| 19 | springdoc-openapi | 3,736 |
| 20 | grpc-spring | 3,708 |
| 21 | deepkit | 3,543 |
| 22 | spring-cloud-kubernetes | 3,535 |
| 23 | Spring Data JPA | 3,288 |
Sponsored
Monitoring that respects your time & budget
APM, error tracking, and dashboards for modern web apps. Ten-minute setup, transparent flat pricing, and support from engineers who actually use the product.
www.appsignal.com