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Spring Initializr

Spring Initializr is a free, open-source generator for JVM-based projects.

Place
#12 of 33
Score
6.6
Spring Initializr's website

What Spring Initializr is

Spring Initializr is a free, open-source generator for JVM-based projects. It supports Java, Kotlin, and Groovy, with Apache Maven and Gradle build systems. Project metadata can set dependencies and supported JVM and platform versions. Users can generate projects through the web service or use endpoints that generate projects and provide metadata to third-party clients. Documented clients include the Spring Boot CLI, cURL, HTTPie, Spring Tool Suite, IntelliJ IDEA Ultimate, NetBeans, and VS Code. The service can be customized with its own metadata and project conventions; documentation describes deploying a custom service with the initializr-web module and Spring Boot, or using Initializr jars as application libraries. Spring Tools integrates Initializr and Spring Guides to help create a Spring Boot app from supported coding environments. The project is released under the Apache 2.0 license. Its repository describes it as pre-1.0, where major refactoring remains possible, and says the custom web UI is not engineered for easy extension.

Good

  • Supports Java, Kotlin, and Groovy.
  • Offers Maven and Gradle project generation.
  • Metadata configures dependencies and supported versions.
  • Custom instances can use their own conventions.
  • Released under the Apache 2.0 license.

Watch out

  • The project is described as pre-1.0.
  • Its custom web UI is not designed for easy extension.
  • Major refactoring is still possible.

Who it suits

Spring Initializr suits developers who want to scaffold JVM projects with configurable dependencies and build tools. Teams needing a tailored generator can use its customization and self-hosting options.

Verdict

Spring Initializr provides configurable JVM project generation through a web service, endpoints, and documented clients. Its pre-1.0 status and limited web UI extensibility matter for teams planning custom deployments.

Plans and prices

From Spring Initializr's own pricing page, checked 7 Oct 2026.

All about pricing
PlanPriceWhat it gives you
Spring InitializrFreeOpen source under Apache 2.0 license

The facts

Each one read from Spring Initializr's own pages, with the date it was checked.

What it does

Build systems
The generator includes implementations for Apache Maven and Gradle.checked 7 Oct 2026
Customization
Its metadata model lets an instance configure dependencies and supported JVM and platform versions.checked 7 Oct 2026
Deployment
The documentation describes deploying a custom service using the initializr-web module with Spring Boot.checked 7 Oct 2026
Integrations
Documented clients include the Spring Boot CLI, cURL, HTTPie, Spring Tool Suite, IntelliJ IDEA Ultimate, NetBeans, and VS Code.checked 7 Oct 2026
Languages
The generator supports Java, Kotlin, and Groovy.checked 7 Oct 2026
Notable limit
The start.spring.io repository says its web UI is for the project’s own purpose and is not particularly engineered to be easily extended.checked 7 Oct 2026
Open source
Spring Initializr is released under the Apache 2.0 license.checked 7 Oct 2026
Pre-1.0 status
The repository README describes Spring Initializr as pre-1.0 and says major refactoring is still possible.checked 7 Oct 2026
Project generation API
Web endpoints generate projects and serve metadata for third-party clients.checked 7 Oct 2026
Project options
Project metadata can configure dependencies and supported JVM and platform versions.checked 7 Oct 2026
Purpose
Spring Initializr provides an extensible API to generate JVM-based projects.checked 7 Oct 2026
Security
The Initializr project is released under the Apache 2.0 license; the opened project pages did not state security certifications or compliance claims.checked 7 Oct 2026
Security policy
The GitHub repository links to a security policy, but the opened page does not state specific security or compliance assurances.checked 7 Oct 2026
Self-hosting
The documentation says you can create your own Initializr service by using its jars as libraries in your application.checked 7 Oct 2026
Spring Tools
Spring Tools integrates Spring Initializr and Spring Guides to help create a Spring Boot app from supported coding environments.checked 7 Oct 2026
Support
The project contribution guide directs general usage questions to Stack Overflow or the Gitter channel.checked 7 Oct 2026
UI reuse
The start.spring.io repository says its custom web UI is intended for its own use and is not engineered to be easily extended.checked 7 Oct 2026
Web endpoints
The service exposes endpoints to generate projects and provide metadata to third-party clients.checked 7 Oct 2026

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