Most popular ast repositories and open source projects

A grammar describes the syntax of a programming language, and might be defined in Backus-Naur form (BNF). A lexer performs lexical analysis, turning text into tokens. A parser takes tokens and builds a data structure like an abstract syntax tree (AST). The parser is concerned with context: does the sequence of tokens fit the grammar? A compiler is a combined lexer and parser, built for a specific grammar.

prettier

Prettier is an opinionated code formatter.

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babel

🐠 Babel is a compiler for writing next generation JavaScript.

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postcss

Transforming styles with JS plugins

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PHP-Parser

A PHP parser written in PHP

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rector

Instant Upgrades and Automated Refactoring of any PHP 5.3+ code

633   7307   7307  

js-code-to-svg-flowchart

js2flowchart - a visualization library to convert any JavaScript code...

481   7083   7083  

esprima

ECMAScript parsing infrastructure for multipurpose analysis

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expr

Expression language and expression evaluation for Go

424   6586   6586  

remark

remark is a popular tool that transforms markdown with plugins. These...

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javaparser

Java 1-21 Parser and Abstract Syntax Tree for Java with advanced analy...

1185   5694   5694  

JSqlParser

JSqlParser parses an SQL statement and translate it into a hierarchy o...

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astexplorer

A web tool to explore the ASTs generated by various parsers.

671   5517   5517  

go-ast-book

:books: 《Go语言定制指南》(原名：Go语法树入门/开源免费图书/Go语言进阶/...

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estree

The ESTree Spec

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gogocode

GoGoCode is a transformer for JavaScript/Typescript/HTML based on AST...

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ts-morph

TypeScript Compiler API wrapper for static analysis and programmatic c...

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unified

☔️ interface for parsing, inspecting, transforming, and serializing c...

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compodoc

:notebook_with_decorative_cover: The missing documentation tool for yo...

388   3859   3859  

participle

A parser library for Go

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esdoc

ESDoc - Good Documentation for JavaScript

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escodegen

ECMAScript code generator

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rewrite

Automated mass refactoring of source code.

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ast-grep

⚡A CLI tool for code structrual search, lint and rewriting. Written i...

46   2467   2467  

react-monocle

A developer tool to visualize a React application's component hierarch...

77   2449   2449  

cppinsights

C++ Insights - See your source code with the eyes of a compiler

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Down

Blazing fast Markdown / CommonMark rendering in Swift, built upon cmar...

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piranha

A tool for refactoring code related to feature flag APIs

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retext

natural language processor powered by plugins part of the @unifiedjs c...

106   2261   2261  

gitbase

SQL interface to git repositories, written in Go. https://docs.sourced...

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infection

PHP Mutation Testing library

155   1886   1886  

spoon

Spoon is a metaprogramming library to analyze and transform Java sourc...

357   1785   1785  

csstree

A tool set for CSS including fast detailed parser, walker, generator a...

99   1715   1715  

babylon

PSA: moved into babel/babel as @babel/parser -->

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birdseye

Graphical Python debugger which lets you easily view the values of all...

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rope

a python refactoring library

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cppast

Library to parse and work with the C++ AST

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micromark

small, safe, and great commonmark (optionally gfm) compliant markdown...

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diffsitter

A tree-sitter based AST difftool to get meaningful semantic diffs

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rehype

HTML processor powered by plugins part of the @unifiedjs collective

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webcrack

Deobfuscate obfuscator.io, unminify and unpack bundled javascript

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astring

🌳 Tiny and fast JavaScript code generator from an ESTree-compliant AS...

51   1053   1053  

typehole

TypeScript development tool for Visual Studio Code that helps you auto...

13   1035   1035  

ModiScript

Acche din aa gaye

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meriyah

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

43   940   940  

starry-night

Syntax highlighting, like GitHub

19   936   936  

php-parser

PHP parser written in Go

65   928   928  

proposal-binary-ast

Binary AST proposal for ECMAScript

24   923   923  

solhint

Solhint is an open-source project to provide a linting utility for Sol...

147   921   921  

estraverse

ECMAScript JS AST traversal functions

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mdast

Markdown Abstract Syntax Tree format

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