Open Source Packages
Libraries, frameworks, tools, and SDKs used by the apps in this directory — scored the same way as the apps themselves.
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url
A WHATWG-standard-compliant URL parser and manipulation library for Rust.
PapaParse
The fastest in-browser CSV parser for JavaScript, with streaming, Web Workers, and zero dependencies
Cheerio
The fast, flexible library for parsing and manipulating HTML and XML with a familiar jQuery-style API.
cRonstrue
Turns cron expressions into human-readable descriptions, in 30+ languages.
minimist
A lightweight, dependency-free argument parser that turns process.argv into a clean options object.
tinycolor2
Fast, dependency-free color parsing, conversion, and manipulation for JavaScript
node-html-parser
A very fast HTML parser that builds a lightweight DOM tree with full CSS3 selector support.
colord
A tiny, dependency-free TypeScript library for parsing, converting, and manipulating colors in any format.
bowser
A small, fast browser, platform, and rendering-engine detector for browser and Node environments
bytes
Tiny utility for parsing and formatting byte strings like '1kb'
html-react-parser
Converts HTML strings into React elements, working seamlessly on both server and client
Partial JSON
Parses incomplete JSON strings streamed token-by-token from an LLM into usable JavaScript values as they arrive.
nom
A byte-oriented, zero-copy parser combinators library for Rust
email-addresses
A dependency-free RFC 5322 email address parser for JavaScript and Node.js.
tree-sitter
Incremental parsing library for building fast, resilient syntax trees
error-stack-parser
Cross-browser JavaScript library that parses Error objects into structured stack frames with function names, file paths, and line/column numbers.
lark
A modern parsing toolkit for Python supporting Earley, LALR(1), and CYK parsers with automatic tree construction.
Device Detector
Universal PHP library for parsing user agents into browsers, OS, and device info
url-parse
Small, dependency-light URL parser that works identically in Node.js and the browser.
url-pattern
A tiny, dependency-free library for matching and generating URL-like string patterns without regex.
go-shellwords
A Go library that splits shell-style command-line strings into argument slices, honoring POSIX quoting, escaping, and substitution rules.
parse-diff
A fast, dependency-free unified diff parser that converts raw patch text into structured file, chunk, and line-change objects for JavaScript and TypeScript projects.
PHP User Agent Parser
Lightning-fast, minimalist PHP parser that turns User-Agent strings into browser and platform.
pylatexenc
A dependency-free Python library that parses LaTeX markup and converts between LaTeX code and Unicode text.