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MOEA Framework

A Free and Open Source Java Framework for Multiobjective Optimization

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The MOEA Framework is a free and open source Java library for developing and experimenting with multiobjective evolutionary algorithms (MOEAs) and other metaheuristics.

Features

Fast, reliable implementations of over 25 MOEAs, including NSGA-III and MOEA/D.
Suite of tools for comparing and statistically testing algorithms.
Master-slave, island-model, and hybrid parallelization.
Permissive open source license (LGPL)

Getting Started

Download the latest release from the GitHub Releases page. Maven users can add our dependency to their pom.xml file:

<dependency>
    <groupId>org.moeaframework</groupId>
    <artifactId>moeaframework</artifactId>
    <version>5.0</version>
</dependency>

Check out our examples, online documentation, and API Specification (Javadoc) to get started.

Example

Below we solve the 2-objective DTLZ2 problem using NSGA-II:

Problem problem = new DTLZ2(2);

NSGAII algorithm = new NSGAII(problem);
algorithm.run(10000);

algorithm.getResult().display();

In addition, the MOEA Framework includes a suite of diagnostic and visualization tools:

Citation

If you use this software in your work, please cite it as follows (APA style):

Hadka, D. (2025). MOEA Framework A Free and Open Source Java Framework for Multiobjective Optimization (Version 5.0) [Computer software]. Retrieved from https://github.com/MOEAFramework/MOEAFramework.