#ast

Mermaid.js, but headless, in Rust.

🐊 Pluggable and configurable JavaScript Linter, code transformer and formatter with superpowers 💪: built-in support of js, jsx, ts, markdown, yaml, toml, json and ignore. Write declarative codemods in a simplest possible way 😏

A 100% compliant, self-hosted javascript parser - https://meriyah.github.io/meriyah

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

Rector for TYPO3

JSqlParser parses an SQL statement and translate it into a hierarchy of Java classes. The generated hierarchy can be navigated using the Visitor Pattern

Stop feeding broken Markdown to your AI. A deterministic Logseq parser that preserves parent-child context for RAG, plus a 60FPS visualizer 👓 , plus writer ✍️ append only

A high-performance Markdown parser and renderer for Angular, React, Svelte, Vue, HTML and ANSI.

:rocket: Very FAST :rocket: PHP AutoMapper with on the fly code generation

RuboCop's AST extensions and NodePattern functionality

Semantic parser for API specifications

Turn any codebase, with its docs, SQL schemas, configs, and PDFs, into a queryable knowledge graph. A /graphify skill for Claude Code, Cursor, Codex, and Gemini CLI: local deterministic AST parsing, every edge explained, no vector store.

Lottie processor powered by plugins

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

Compile-time i18n toolkit that requires zero code changes and produces the smallest possible bundles. Supports React, Svelte, SolidJS, Astro, and more

AdGuard content blocking library

Zero-dependency TypeScript implementation of Symfony's Expression Language. Safely parse and evaluate dynamic expressions in Node and the browser, with ESM/CJS/UMD builds and full typings.

A high-performance multi-language bindings generator for Rust, up to 1,000x faster than UniFFI. Ship Rust libraries that feels native to Python, Swift, Kotlin, and more

A robust, strictly-typed Node.js and Browser library for parsing office files into a rich Abstract Syntax Tree (AST) and generating high-fidelity output in multiple formats. Parses: docx · pptx · xlsx · odt · odp · ods · pdf · rtf · csv · md · html. Generates: Markdown · HTML · CSV · RTF · PDF · Plain Text · RAG Chunks

A PHP parser written in PHP

🔪📦 Javascript decompiler for modern frontend

a python refactoring library

Convert source code into a repository-scale structural model. Air gapped, zero dependencies, SARIF and SBOM outputs.

A new Rust-based platform for the Web

Manipulate the AST to transform your code.

Comprehensive tree-sitter grammar compilation with polyglot bindings — Rust, Python, Node.js, Go, Java, Ruby, Elixir, PHP, C#, WASM, Dart, Kotlin-Android, Swift, Zig, and CLI. 371 languages.

AST-based Python obfuscator with reverse stack-trace mapping — obfuscate before shipping and keep production tracebacks AI-debuggable. MCP + VS Code.

Symbol Delta Ledger (SDL-MCP) is a policy-centered context budget layer for coding agents: Symbol-graph intelligence combined with precision tools. It turns sprawling codebases into compact, high-signal context that saves tokens, speeds up workflows, and improves agent output.

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

minimalistic evaluator of python expression using ast module