#ast

Lark is a parsing toolkit for Python, built with a focus on ergonomics, performance and modularity.

minimalistic evaluator of python expression using ast module

🔪📦 Javascript decompiler for modern frontend

Fastest SVG toolchain for optimisation, minification, linting, and actions. Usable via CLI, Node, Wasm, or Rust.

Development repository for Rector. Check https://github.com/rectorphp/rector for the distribution repository.

Blazingly fast CLI to remove comments from code using tree-sitter grammers

A TypeScript package providing a normalized typed Solidity AST along with the utilities necessary to generate the AST (from Solc) and traverse/manipulate it.

Easiest possible opinionated Babel AST printer

a python refactoring library

RegexParser: Static Analysis, Linter & Logic Solver for PHP

Fast Python parser that generates a serialized AST

Local-only Go static analysis engine with a built-in MCP server. Gives AI coding agents deterministic structural awareness: call graphs, impact analysis, symbol search, and more.

Minify with help of 🐊Putout

OxiZ is a high-performance Satisfiability Modulo Theories (SMT) solver written entirely in Rust. This project is part of an initiative to reimplement Z3 in Pure Rust. Pure Rust is a fundamental requirement - no C/C++ dependencies, no FFI bindings, just clean, safe Rust code.

mdast utility to parse markdown

Extensible Abstract Syntax Tree parser

Search, replace, and diff Elixir code by AST pattern

Code duplication detector powered by Elixir AST analysis

Safe-to-use proc-macro-free self-referential structs in stable Rust.

A `typescript-go` toolchain for compiler-powered plugins + type-safe execution + 800x faster linter + codegraph reducing 90% AI tokens

ESTree generator for gjs and gts file used by ember

A tool set for CSS including fast detailed parser, walker, generator and lexer based on W3C specs and browser implementations

Automated, AST-based JSDoc comment generator and static documentation site builder for JavaScript & TypeScript. Fast, deterministic, and 100% local (No AI involved).

Markdown component for React

AST knowledge graph MCP server for Claude Code — semantic search, call graph traversal, HTTP route tracing, impact analysis. Auto-indexes 10 languages via Tree-sitter.

Structural, byte-precise, token-cheap codebase access for coding agents — tree-sitter over a CLI and an MCP server.

Fast 0-deps bash parser written in TypeScript

Python AST read/write

🌳 A PHP JSON parser that turns JSON into an editable AST, supports visitor-based traversal, and prints changes back while preserving the original formatting.

AST utility module for statically analyzing JSX