10+ Free Open Source Projects Using Spring Boot

In this article, I suggest a few free, open-source projects developed using Spring Boot for learning purposes. Please go ahead, check out the source code (I have also added tutorials), and get hands-on experience on real projects.
Along with Spring Boot, you will also learn Spring framework modules, Microservices, Thymeleaf, Maven, JWT, React Js, Elastic Search, WebSocket, JSP, MySQL, Hibernate, Spring Data JPA, etc.
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1. Banking Application using Spring Boot

In this project, we will learn how to build REST APIs for a simple Banking application using Spring Boot, Spring Data JPA (Hibernate) and MySQL database. 

You will create a simple version of the Banking App with basic functionalities: creating a bank account, fetching account details, and making a deposit/withdrawal.

Use this tutorial to build this banking application: Banking Application using Spring Boot.

Sample screenshot of the REST API:
In this project, we will learn how to build REST APIs for a Library Management System Project using Spring BootSpring Data JPA (Hibernate), and MySQL database.

We'll create a simple version of the Library Management System with basic functionalities:
  1. Create a new User
  2. Fetch all the Users
  3. Add new book
  4. Fetch all the books
  5. Fetch specific book
  6. Delete a book
  7. Borrow a book
  8. Return a book
Use this tutorial to build this library management system application: Library Management System using Spring Boot.

Sample screenshot of the REST API:
In this project, we will build an Employee Management System project from scratch using Spring Boot, Spring MVC, Spring Security, Thymeleaf, and MySQL database. Spring Boot is an opinionated framework that helps developers build stand-alone and production-grade Spring-based applications quickly and easily. 

We will implement the following features in this project: 
  1. List Employee Feature 
  2. Add Employee Feature 
  3. Update Employee Feature 
  4. Delete Employee Feature 
  5. Pagination Feature 
  6. Sorting Feature 
  7. Login Feature 
  8. Registration Feature 
  9. Logout Feature

Demo screenshot of this project:
Employee Management Project using Spring Boot

 4. Simple Microservices Project using Spring Boot

This project will teach us how to build a simple Microservices project using Spring Boot 3, Spring Cloud, and PostgreSQL database. In this microservices project, you'll explore essential concepts such as API Gateway, Config Server, Discovery Server, and hands-on implementation of two real-world microservices, Student and School.

Use this tutorial to build this project: Microservices Project using Spring Boot.

Here is the Microservices Architecture for our Microservices project that we are going to build in this tutorial:

In this full-stack project, we will learn how to develop a simple end-to-end full-stack web application that is a basic Employee Management Application using React and Spring Boot.

I have created this project for my free ReactJS + Spring Boot CRUD Full Stack App course on YouTube.

In this project, you will learn how to build a full-stack web application that is a basic Employee Management Application with CRUD features:
  1. Create Employee
  2. List Employee
  3. Update Employee
  4. Delete Employee
  5. View Employee
Use this tutorial to build this project: CRUD App using Spring Boot and React

Following is the screenshot of the final version of our application -

6. Project Sagan

This is a real-world app that powers the Spring.io website. It is in production and used by thousands of users each day.

Sagan project is open-source and available on the GitHub repository: https://github.com/RameshMF/sagan.

I highly suggest this project. You will learn everything about the Spring framework ecosystem, Elasticsearch, Gradle, and Thymeleaf UI.

Quick reference links to the Sagan project:
2. Sagan - Run the Sagan site application locally
3. Sagan - Import Sagan project sources into your IDE of choice.
4. Sagan - Sagan Wiki
5. Live demo on - Spring.io
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Spring Initializr is a great tool developed by the Spring team to bootstrap your Spring Boot projects quickly. It is an open-source project hosted on GitHub.

There are many ways to create a Spring Boot application. The simplest way is to use Spring Initializr at http://start.spring.io/, which is an online Spring Boot application generator.

Live Demo: https://start.spring.io
GitHub Repository - https://github.com/RameshMF/initializr
Documentation - Spring Initializr Reference Guide

8. Angular Spring Boot CRUD Full-Stack Application

This web application will teach you how to develop a CRUD (Create, Read, Update, Delete) Web Application (employee management system) using Angular 9 as a front-end and Spring boot, and Restful API as a backend.

Features Implementation:
  1. Create an Employee
  2. Update an Employee
  3. List of Employees
  4. Delete Employee
  5. View Employee
Check out the step-by-step tutorial/guide to create this web app at Angular Spring Boot CRUD Full-Stack Application.

9. Spring Boot Thymeleaf Hibernate CRUD Database - Real-Time Project

You will learn how to create a simple real-time project (Employee Management System) using Spring Boot and Thymeleaf.
Features:
  1. Implement List Employee Feature
  2. Implement Add Employee Feature
  3. Implement Update Employee Feature
  4. Implement Delete Employee Feature
  5. Implement Pagination Feature
  6. Implement Sorting Feature
  7. Implement Search Feature
Tutorial and Source code link - Spring Boot Thymeleaf Hibernate CRUD Database - Real-Time Project.

The below diagram shows the application flow of our Spring MVC web application with Thymeleaf:

10. Java Blogs Aggregator

Java Blog Aggregator is a Spring boot MVC-based web application aggregating top Java blogs, articles, and posts via RSS feed. This project was developed with the Spring Boot.
Live Demo on - https://www.topjavablogs.com/

11. Spring PetClinic Sample Application

Pet Clinic is a https://spring.io/guides/gs/spring-boot[Spring Boot] application built using https://spring.io/guides/gs/maven/[Maven]. You can build a jar file and run it from the command line.

You can clone the PetClinic application from GitHub - https://github.com/RameshMF/spring-petclinic.


Check out the readme to know more about the PetClinic application.

12. PiggyMetrics

This project uses a neat user interface to demonstrate the Microservice Architecture Pattern using Spring Boot, Spring Cloud, and Docker.

GitHub link - https://github.com/RameshMF/PiggyMetrics.

You will learn:
  • Microservice Architecture
  • Spring Boot
  • Spring Cloud 
  • Docker
PiggyMetrics was decomposed into three core microservices. All of them are independently deployable applications organized around certain business domains.

13. Polling App

The full-stack polls app was built using Spring Boot, Spring Security, JWT, React, and Ant Design.

You will learn:

  • Spring Boot
  • Spring Data JPA
  • Hibernate 
  • Maven
  • Spring Security
  • JWT
  • React JS
Read an article on - Spring Boot + Spring Security + JWT + MySQL + React Full Stack Polling App.
Live Demo on - https://polls.callicoder.com/

14. Spring Boot WebSocket Chat Application

This is a Spring Boot WebSocket Chat Demo with SockJS fallback and STOMP protocol. You will learn how to use WebSocket API with Spring Boot and build a simple group chat application at the end.




15. Spring Boot Cities

This is a sample project to demonstrate building and deploying a simple Spring Boot-based microservice and a web app to consume the microservice.

You will learn:

  • Spring boot
  • Spring Cloud
  • Microservice
  • Maven

16. Mini Todo Management Project

Spring MVC Todo Management is a web application that uses Spring Boot, Spring MVC, Spring Security, JSP, JPA, and MySQL as a database.


17. User Registration and Login Module

This user registration module is developed with Spring Boot, Spring Security, Hibernate, and Thymeleaf. 

Tools and Technologies Used:
- Spring Boot 3
- Spring MVC 6
- Spring Security 6
- Hibernate 6
- Thymeleaf 3
- MySQL 8
- Maven

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Comments

  1. Please, upload mini todo management code into github link...

    ReplyDelete
  2. If you like smart home and FRITZ!Box then take a look on Homie Center which uses Spring Boot and Angular.

    https://github.com/botorabi/HomieCenter

    ReplyDelete
  3. Please upload any rest api authentication using Spring security with client Angular 8

    ReplyDelete
  4. Please provide any e-publishing project like amazon e-kindle ,thanks in advance

    ReplyDelete
  5. I read about this website. This is a real-world app that powers the Spring.io website. It is in production and used by thousands of users each day. Your blog helps to know more about the website. Thank you for sharing this valuable information.
    Hire Angularjs Developer

    ReplyDelete
  6. What is the difference between https://github.com/RameshMF/initializr and the official Spring boot started repository?I mean does your version has additional features?

    ReplyDelete
    Replies
    1. No. It does not have additional features. I have forked it to place everything altogether. You can fork official spring boot initializr repository.

      Delete
  7. This is a great resource. Thanks Ramesh!

    ReplyDelete
  8. Please give me link of crud project of employee management which includes uploading files(resume or image) to file system, renaming file according to id of employee and show file link in front of each employee at index page. Regards

    ReplyDelete
  9. is there someone know where i can the database of the polling app represented like a diagram

    ReplyDelete

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