Does Spring Boot Require Web Server?


Scott Campbell

Spring Boot is a popular framework for building Java applications. It provides a streamlined way to create stand-alone, production-grade Spring-based applications with minimal configuration.

One common question that often arises in the development community is whether Spring Boot requires a web server to run. Let’s dive deeper into this topic and uncover the answer.

Understanding Spring Boot

Before we answer the question, let’s briefly understand what Spring Boot is all about. Spring Boot is built on top of the Spring Framework, which is widely used in enterprise Java development. It aims to simplify the development process by providing default configurations and opinionated conventions.

Spring Boot does not require a separate web server

The answer to the question at hand is no, Spring Boot does not require a separate web server. Instead, it has an embedded web server provided by default. This embedded server allows you to run your Spring Boot application as a standalone executable JAR file without any external dependencies.

Benefits of using an embedded web server:

  • Simplicity: With an embedded web server, you don’t have to worry about setting up and managing a separate web server instance.
  • Portability: The embedded web server allows you to package your application as a single executable JAR file, making it easy to deploy and run on different environments.
  • Performance: The embedded web server is optimized for running Spring Boot applications, resulting in better performance compared to traditional deployment approaches.

Supported Embedded Web Servers

In Spring Boot, you have several options for choosing an embedded web server. Some of the commonly used ones are:

  • Tomcat: Apache Tomcat is the default embedded web server in Spring Boot. It provides a robust and efficient HTTP server implementation.
  • Jetty: Jetty is another popular choice for an embedded web server.

    It is known for its lightweight and high-performance nature.

  • Undertow: Undertow is a lightweight web server designed for high-performance applications. It offers low-level APIs for more fine-grained control.

You can choose the embedded web server based on your specific requirements and preferences. Spring Boot provides seamless integration with these servers, making it easy to switch between them.


To sum up, Spring Boot does not require a separate web server to run. It comes with an embedded web server by default, providing simplicity, portability, and performance benefits.

You can choose from various embedded web servers supported by Spring Boot based on your needs. With Spring Boot’s integrated approach, you can focus more on developing your application logic rather than worrying about infrastructure setup.

So go ahead and leverage the power of Spring Boot to build robust and scalable Java applications without the hassle of managing a separate web server!

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