Spoon is a metaprogramming library to analyze and transform Java source code. :spoon: is made with :heart:, :beers: and :sparkles:. It parses source files to build a well-designed AST with powerful analysis and transformation API.

A code generator for array-based code on CPUs and GPUs

Optional Chaining for TypeScript

Error Prone extensions: extra bug checkers and a large battery of Refaster rules.

Upgrade Elm projects

A collection of transforms for use with JSCodeshift

Application transformation tool

CLAW Compiler for Performance Portability

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Java to C#.Net Translator

BubblesAgent: Open-source AI agent using LLMs (GPT, Gemini, Claude) for automated, large-scale code refactoring and transformation.

A web app for creating animated videos of code morphing between steps. Paste code snippets, configure syntax highlighting and export smooth token-level transitions as WebM/MP4 videos.

Lazily evaluated arrays in Python

Automatic source transformation to apply HPC frameworks with minimal user interaction

A configurable code modifier for typescript and friends. Can transform entire codebases to enforce better coding practices, eliminate tech debt in one fell swoop, and catch bad code before it is committed.

Convert Verilog module to chisel3 BlackBox

Dependence-Based Code Transformation for Coarse-Grained Parallelism

🛡️ AI-powered vulnerability scanner that automatically detects, analyzes, and fixes security issues in npm packages with intelligent code transformations. Supports GitHub Actions, CLI, Docker, and VS Code integration with Microsoft Teams notifications.

Parsing JS code into ASTs and tools to query and transform these trees.

The set of annotation processors that generate an accessor which returns an optional value for each annotated field during the compilation phase.

FLT brings floating point support to C compilers lacking the capability – and it's CPU and compiler agnostic!

Python's built-in libraries include powerful tools for retrieving and operating over abstract syntax trees. This article provides an overview of how to use these features to analyze and transform Python code programmatically.

A CLI tool to use LLMs on files and directories of files

A tool that makes large-scale refactoring easier and safer.

Swift implementation of The Super Tiny Compiler - transforms LISP syntax to Swift function calls

[stable] Macros for ultra-flexible injection of compiler trees, literals, or binary data into Rust syntax trees from external sources.

🛠️ CLI tool to automate the migration of CodeIgniter projects to Laravel — including routes, models, views, and configs.

A PHP utility to generate mock classes by processing source code, leaving only public methods and clearing their bodies. Supports PSR-4 and is ideal for testing complex systems without Dependency Injection.

Babel 插件，支持把 JavaScript/TypeScript 代码里的简体中文字符串、模板字符串转换成繁体中文

Transformator for PHP Code Generator. Can be used standalone in a workflow or by a Cartridge.