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FF4J (Feature Flipping for Java) project preview
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FF4J (Feature Flipping for Java)

Feature Flipping framework for Java, Spring Boot, and Quarkus microservices.

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LicenseApache-2.0
GitHub stars2.2k
Last commit1 weeks ago
Tags5 topics
Java Feature FlagsDevopsAb Testing JavaSpring Boot TogglesQuarkus Ff4j
Overview

Why consider FF4J (Feature Flipping for Java)?

FF4J (Feature Flipping for Java) is the leading feature flag and toggle architecture for Java written by Cedrick Lunven. It supports dynamic feature flips, business rule evaluations, A/B testing, and audit trails with integrations for Spring Boot, Quarkus, Redis, and JDBC.

Guided learning

Learn FF4J (Feature Flipping for Java) by building

Practical setup notes, real use cases, and copy-ready examples in one focused guide.

1 min read 2 sections
In this guide2 sections

Overview of FF4J

FF4J injects dynamic feature switches into Spring Boot beans with automatic Web console administration.

Maven Dependency

xml
1<dependency>
2 <groupId>org.ff4j</groupId>
3 <artifactId>ff4j-spring-boot-starter</artifactId>
4 <version>2.0.0</version>
5</dependency>

FF4J is licensed under the Apache License Version 2.0.

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FF4J (Feature Flipping for Java) FAQs

FF4J (Feature Flipping for Java) is listed as a Developer Tools tool on TiloBox. Review the overview, features, and official documentation on this page to decide whether it solves your specific workflow.

Start with the project's GitHub repository and official website for supported installation and deployment instructions. Test the setup with representative data or a small project before rolling it out more widely.

FF4J (Feature Flipping for Java) is listed under the Apache-2.0 license. Read the complete license text and the project's notices before using, modifying, or distributing the software.

Production readiness depends on your requirements. Review maintenance activity, security practices, documentation, backup and upgrade procedures, and compatibility with your stack; then validate it in a non-production environment.

FF4J (Feature Flipping for Java) is listed as an alternative to Togglz. Compare the core workflow, deployment model, integrations, and licensing against your must-have requirements before switching.