PyPI88Excellenthealth index
collective/icalendaricalendar parser library for Python
Python★ 1,150↓ 11.2M/moJul 21, 2026
PyPI85Excellenthealth index
pylint-dev/astroidA common base representation of python source code for pylint and other projects
Python★ 581Jul 17, 2026
tj/commander.jsnode.js command-line interfaces made easy
JavaScript★ 28.3K↓ 1.8B/moJul 22, 2026
crates.io · npm83Goodhealth index
oxc-project/oxc⚓ A collection of high-performance JavaScript tools.
Rust★ 22KJul 16, 2026
cheeriojs/cheerioThe fast, flexible, and elegant library for parsing and manipulating HTML and XML.
TypeScript · HTML · Astro★ 30.4K↓ 121M/moJul 23, 2026
npm · PyPI · Packagist +482Goodhealth index
cucumber/gherkinA parser and compiler for the Gherkin language.
C★ 372↓ 27.8M/moJul 19, 2026
inikulin/parse5HTML parsing/serialization toolset for Node.js. WHATWG HTML Living Standard (aka HTML5)-compliant.
TypeScript★ 3,914↓ 820M/moJul 22, 2026
crates.io82Goodhealth index
tree-sitter/tree-sitterAn incremental parsing system for programming tools
Rust★ 26.2K↓ 3.5M/moJul 13, 2026
crates.io81Goodhealth index
swc-project/swcRust-based platform for the Web
Rust★ 34.2K↓ 0/moJul 14, 2026
RDFLib/rdflibRDFLib is a Python library for working with RDF, a simple yet powerful language for representing information.
Python★ 2,478Jul 18, 2026
Shopify/theme-toolsEverything developer experience for Shopify themes
TypeScript★ 219Jul 16, 2026
inria/spoonSpoon 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.
Java★ 1,945Jul 17, 2026
mangiucugna/json_repairRepair malformed JSON from LLMs, APIs, logs, and user input in Python.
Python★ 5,029↓ 0/moJul 14, 2026
tobymao/sqlglotPython SQL Parser and Transpiler
Python★ 9,433↓ 1.9M/moJul 17, 2026
expressjs/body-parserNode.js body parsing middleware
JavaScript★ 5,503↓ 521M/moJul 22, 2026
Packagist79Goodhealth index
matomo-org/device-detectorThe Universal Device Detection library will parse any User Agent and detect the browser, operating system, device used (desktop, tablet, mobile, tv, cars, console, etc.), brand and model.
PHP★ 3,502↓ 1.1M/moJul 15, 2026
scalameta/scalametaLibrary to read, analyze, transform and generate Scala programs
Scala★ 1,155Jul 17, 2026
wundergraph/graphql-go-toolsGraphQL Router / API Gateway framework written in Golang, focussing on correctness, extensibility, and high-performance. Supports Federation v1 & v2, Subscriptions & more.
Go★ 827Jul 15, 2026
eemeli/yamlYAML parser and serialiser for JavaScript
TypeScript★ 1,681↓ 742M/moJul 22, 2026
emilstenstrom/justhtmlA pure Python HTML5 parser that just works. No C extensions to compile. No system dependencies to install. No complex API to learn.
Python★ 1,148Jul 18, 2026
fb55/htmlparser2The fast & forgiving HTML and XML parser
TypeScript★ 4,785↓ 333M/moJul 22, 2026
crates.io77Goodhealth index
apollographql/apollo-rsSpec compliant GraphQL Tools in Rust.
Rust★ 606↓ 129.9K/moJul 21, 2026
Packagist · crates.io · npm77Goodhealth index
carthage-software/magoMago is a toolchain for PHP that aims to provide a set of tools to help developers write better code.
Rust · PHP★ 3,314↓ 235.2K/moJul 15, 2026
coderaiser/putout🐊 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 😏
JavaScript★ 796↓ 446.3K/moJul 21, 2026
yargs/yargs yargs the modern, pirate-themed successor to optimist.
JavaScript · TypeScript★ 11.5K↓ 935M/moJul 22, 2026
executablebooks/markdown-it-pyMarkdown parser, done right. 100% CommonMark support, extensions, syntax plugins & high speed. Now in Python!
Python · HTML★ 1,338↓ 577M/moJul 16, 2026
crates.io · RubyGems · npm76Goodhealth index
marcoroth/herb🌿 Powerful and seamless HTML-aware ERB toolchain.
TypeScript · C · Ruby★ 1,268↓ 51/moJul 20, 2026
Packagist75Goodhealth index
Behat/GherkinGherkin parser, written in PHP for Behat project
PHP★ 1,063↓ 2.6M/moJul 20, 2026
asyncapi/parser-jsAsyncAPI parser for Javascript (browser-compatible too).
TypeScript★ 144Jul 19, 2026
mkdocstrings/griffeSignatures for entire Python programs. Extract the structure, the frame, the skeleton of your project, to generate API documentation or find breaking changes in your API.
Python★ 667↓ 30.8M/moJul 17, 2026