9 Open-source Java Code Generators

The Java Code Generator is a tool used by software developers to automatically generate Java code based on specific requirements or templates.

It helps streamline the process of writing repetitive code and can save time and effort in software development projects.

Benefits of using Java Code Generator.

Efficiency: The code generator automates the generation of Java code, reducing the need for manual coding and saving time.
Consistency: It helps maintain consistency in coding standards and practices across a project.
Productivity: Developers can focus on higher-level aspects of software development instead of writing boilerplate code.
Customization: The code generator can be customized to suit specific project requirements.
Error reduction: By automating code generation, the chances of human error in writing repetitive code are minimized.

1- Telosys

Telosys is an open-source code generator designed to simplify the development of Java, JavaScript, and other languages. It is a lightweight and customizable tool that helps developers generate high-quality code based on predefined templates.

Telosys provides features such as model-driven development, code generation from databases, and support for various frameworks and technologies. It aims to increase developer productivity by automating repetitive tasks and promoting code reuse.

2- Java Code Generators

This is an open-source free-to-use Visual Studio Code extension for generating Java code.

The extension provides a set of code snippets and templates that developers can use to quickly generate Java code within the Visual Studio Code editor.

It aims to enhance the productivity of Java developers by automating the generation of common code patterns and structures.

3- JavaForger

JavaForger is a free tool that provides a simple way to generate Java code based on templates and predefined rules.

JavaForger aims to improve developer productivity by automating the generation of boilerplate code and reducing the time spent on repetitive tasks.

4- Fast Code Plugin (Eclipse)

Fast Code Plugin is a free eclipse plugin that helps write code faster in Java and PHP applications. It offers templates for generating code snippets based on fields from arbitrary POJO classes or classes from any package or files in a folder.

It also provides database templates for generating code snippets with multiple columns, such as creating SQL statements, named parameters, named queries, and row mapper classes.

5- Jmr

Jmr is an open-source project that offers a collection of pre-built Java models that can be used as a starting point for developing Java applications.

The JMR provides templates and code snippets that developers can use to generate code quickly and efficiently. It aims to accelerate the development process by providing reusable code components and promoting code reuse.

Features

Task: Any repetitive code can be automatically generated through Jmr. You only need to write templates and set tasks according to your own project and framework.
Template: Jmr uses Jet as a template to generate code. JSP-like template files can be edited and transformed into any kind of source artifact including java, html, properties or xml files in a very simple way.
Model: You can transform the model from database(like table and view), xml, java class, and use these models to generate any code, testcase, and document. It also provides ORM tools for mapping types and Convert tool to convert model easily.

Jmr - Java Code Generator

Download Jmr - Java Code Generator for free. “black technology” will improve development productivity by 1.5 to 5 . More than just an entirely free Java code generator, It’s also a development automation tool(Much more than a normal code generator). Maybe it can become your “black technology” will improve development productivity by 1.5 to 5 times, Zero coupling to your project and without changing anything.

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6- JavaPoet

JavaPoet is a Java API that generates .java source files, which is useful for tasks like annotation processing and working with metadata files.

Code generation eliminates the need for writing boilerplate and ensures a single source of truth for metadata.

7- JavaCodeGenerator

JCG is a powerful Java code generator. Unlike most generators, JCG is not based on templates; it's a DSL in pure Java to generate Java! The goal of JCG is not to cover all Java language features, but it's to allow the creation of powerful, robust and well designed generators.

8- JBizMo

JBizMo is an open-source code generation framework for Java. It provides a set of tools and libraries that developers can use to generate Java code based on predefined templates and rules.

JBizMo aims to simplify the development process and improve productivity by automating the generation of repetitive code and promoting code reuse.

It offers features such as model-driven development, code generation from UML models, and support for various frameworks and technologies. JBizMo is designed to help developers create high-quality Java applications efficiently.

JBizMo

Download JBizMo for free. Powerful generator for Java applications (JPA, Java EE...) JBizMo supports building of Angular, Eclipse RCP/RAP, JavaFX, JSF (Primefaces), Swing and Vaadin applications. The generated applications can run in a stand-alone mode or they can be deployed on a Java EE server (Wildfly 16, Payara 5).

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9- Jenesis 4 Java Code Generator

Jenesis 4 Java is a code generator that allows you to construct Java classes, including annotations and comments, using a domain object model (DOM) of the Java programming language. It provides a convenient solution for generating Java sources from strings or patterns.