Open Source Code Generators

OpenAI Codex CLI is a lightweight, open-source coding assistant that runs directly in your terminal, designed to bring ChatGPT-level reasoning to your code workflows. It allows developers to interactively query, edit, and generate code within their repositories, all while maintaining version control. The CLI can scaffold new files, run code in sandboxed environments, install dependencies, and commit changes automatically, streamlining chat-driven development. It supports various approval modes—from suggestion-only to full automation—ensuring safe and controlled code execution. Codex CLI can also handle multimodal inputs like screenshots and diagrams to implement features intelligently. The tool includes built-in sandboxing & security measures, such as network restrictions and directory confinement, to protect your system during code execution. With extensive configuration options, including multiple AI providers and custom guidance files, it fits seamlessly into developer environments.

Node-RED is a programming tool for wiring together hardware devices, APIs and online services in new and interesting ways. It provides a browser-based editor that makes it easy to wire together flows using the wide range of nodes in the palette that can be deployed to its runtime in a single-click. Node-RED provides a browser-based flow editor that makes it easy to wire together flows using the wide range of nodes in the palette. Flows can be then deployed to the runtime in a single-click. JavaScript functions can be created within the editor using a rich text editor. A built-in library allows you to save useful functions, templates or flows for re-use. The light-weight runtime is built on Node.js, taking full advantage of its event-driven, non-blocking model. This makes it ideal to run at the edge of the network on low-cost hardware such as the Raspberry Pi as well as in the cloud.

Command-line/Ant-task/embeddable text file preprocessor. Macros, flow control, expressions. Recursive directory processing. Extensible in Java to display data from any data sources (as database). Can generate complete homepages (tree of HTML-s, images, etc.)

CodiumAI PR-Agent is an open-source tool aiming to help developers review pull requests faster and more efficiently. It automatically analyzes the pull request and can provide several types of commands. See the Usage Guide for instructions how to run the different tools from CLI, online usage, Or by automatically triggering them when a new PR is opened. You can try GPT-4 powered PR-Agent, on your public GitHub repository, instantly. Just mention @CodiumAI-Agent and add the desired command in any PR comment. The agent will generate a response based on your command.

Bash is great, but when it comes to writing scripts, people usually choose a more convenient programming language. JavaScript is a perfect choice, but the standard Node.js library requires additional hassle before use. The zx package provides useful wrappers around child_process, escapes arguments, and gives sensible defaults. Write your scripts in a file with .mjs extension in order to be able to use await on top level. If you prefer the .js extension, wrap your scripts in something like void async function.

Byte Code Generation Library is high-level API to generate and transform Java byte code. It is used by AOP, testing, data access frameworks to generate dynamic proxy objects and intercept field access. cglib is a powerful, high-performance and quality Code Generation Library. It is used to extend Java classes and implement interfaces at runtime. See samples and API documentation to learn more about features. This library is free software, freely reusable for personal or commercial purposes.

JHipster is a development platform to quickly generate, develop, and deploy modern web applications and microservice architectures. We support many frontend technologies, including Angular, React, and Vue. We even have mobile app support for Ionic and React Native! On the backend, we support Spring Boot (with Java or Kotlin), Micronaut, Quarkus, Node.js, and .NET. For deployment, we embrace cloud native principles with Docker and Kubernetes. Deployment support exists for AWS, Azure, Cloud Foundry, Google Cloud Platform, Heroku, and OpenShift. Our goal is to generate a complete and modern web app or microservice architecture, unifying: A high-performance and robust server-side stack with excellent test coverage; a sleek, modern, mobile-first UI with Angular, React, or Vue + Bootstrap for CSS; and a powerful workflow to build your application with Webpack and Maven or Gradle.

Scale your models, not your boilerplate with PyTorch Lightning! PyTorch Lightning is the ultimate PyTorch research framework that allows you to focus on the research while it takes care of everything else. It's designed to decouple the science from the engineering in your PyTorch code, simplifying complex network coding and giving you maximum flexibility. PyTorch Lightning can be used for just about any type of research, and was built for the fast inference needed in AI research and production. When you need to scale up things like BERT and self-supervised learning, Lightning responds accordingly by automatically exporting to ONNX or TorchScript. PyTorch Lightning can easily be applied for any use case. With just a quick refactor you can run your code on any hardware, run distributed training, perform logging, metrics, visualization and so much more!

A console program and library to generate XmlSerializer-compatible C# classes from XML Schema files.

PyXB (“pixbee”) is a pure Python package that generates Python source code for classes that correspond to data structures defined by XMLSchema. In concept it is similar to JAXB for Java and CodeSynthesis XSD for C++.

An application to take an image file (jpeg, bmp, etc) and convert it to an array of values suitable for including in source code. Source code is in C++ and developed under MS VS2008 and Emacs. Runs as a GUI app in Windows and a command-line app for *NIX.

JPype is an effort to allow python programs full access to java class libraries. This is achieved not through re-implementing Python, as Jython/JPython has done, but rather through interfacing at the native level in both Virtual Machines. Maintenance and evolution of the project has moved! please see http://www.jpype.org for the latest version

jAstyle is a 100% pure Java port of the GPL’d AStyle (http://astyle.sourceforge.net/). jAstyle is intented to be created as a library and not as a command line tool, so It does not support those options associated to standard output or console.

BinaryNotes is the Open Source ASN.1 (Abstract Syntax Notation One) framework for Java and .NET based on annotations/attributes. The framework has the flexible ASN.1 compiler, the runtime library that supports BER, DER and PER, and the Message Queues

Bisquilla will be a flexible, powerfull and easy to use code generator. It will transform a xml metadata file using a custom developed package, and implement the best pratices for its core development.

The development of Chiba was discontinued in 2009. The betterFORM Project by the same people who did Chiba is its successor. See http://www.betterform.de for further information

An Eclipse plugin for generating code out of an Entity-Relationship-Diagram (ERD). Currently SQL-DDL and POJO classes with EJB3.0 Annotations are supported. The diagrams conform to the diagram description by H. Buff (german book, ISBN 3-03-440201-5)

Entier studio is a web tool designed for developers. It provides several features that enhance the development of applications. Some of these features are an original model-driven approach and distinct code generation and publication processes.

Provides a Java programmable only text file editor. No gui is available. It supplies most of the features you expect from an editor including selections.

.NET 2.0 reflection-to-cache-based library, with an ASP.NET UI generation feature. Uses Dynamic IL to generate VERY fast accessors to properties, and allows direct get and set of objects to controls that allow for their edit or display in ASP.NET forms

SableCC is a parser generator which generates object-oriented frameworks for building compilers, interpreters and other text parsers. SableCC keeps a clean separation between machine and user code which leads to a shorter development cycle.

Dingo is a pluggable Schema Compiler for .NET and will generate C# code. The goal is to provide a simple way to generate Domain Objects. .NET XSD currently only generates Data Objects. Dingo can delegate code generation with high granularity.

kin is a set of libraries and tools supporting meta-programming for engineering and technical computing applications. This JVM version of kin has been superseded by the stand-alone version being developed at http://purl.org/net/kin.

This plugin helps to manage the site documantation by converting the Evolus Pencil *.ep files to SVG. It supports multi-pages ep files and produces the separate svg images for each page. Please check the Wiki page for details.