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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tree-sitter-javascript
JavaScript and JSX grammar for the tree-sitter incremental parsing library
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
certmagic
Automatic HTTPS for Go programs — the production-grade ACME client library that powers Caddy, obtaining and renewing TLS certificates with zero manual cert management.
csv-parser
A zero-dependency streaming CSV parser for Node.js that converts CSV into JSON at high speed.
toml-node
A zero-dependency, spec-compliant TOML parser for Node.js with BigInt and Temporal support.
set-cookie-parser
Parse raw Set-Cookie header values into structured JavaScript cookie objects
sqlparser
Extensible SQL lexer and parser for Rust, conforming to ANSI SQL:2011
node-xlsx
TypeScript-first Excel parser and builder for Node.js, built on SheetJS.
gock
Versatile HTTP traffic mocking for Go, intercepting any net/http-based client for deterministic tests.
xml-js
Converts XML text to JavaScript objects or JSON and back, preserving element order.
Peggy
Parser generator for JavaScript using parsing expression grammars (PEG)
@neondatabase/serverless
Neon's serverless PostgreSQL driver for JavaScript and TypeScript, built for edge and serverless runtimes using HTTP and WebSockets instead of raw TCP.
yargs-parser
The mighty, standalone option parser powering yargs
error-stack-parser
Cross-browser JavaScript library that parses Error objects into structured stack frames with function names, file paths, and line/column numbers.
tree-sitter-c-sharp
C# grammar for tree-sitter, based on the Roslyn language grammar
x509-parser
A pure-Rust, zero-copy X.509 certificate parser (RFC 5280) built on the nom parser-combinator framework, with optional signature verification.
tinycss2
Low-level CSS Syntax Level 3 parser and generator for Python
gix
An idiomatic, lean, fast and safe pure Rust implementation of Git for programmatic repository access.
lark
A modern parsing toolkit for Python supporting Earley, LALR(1), and CYK parsers with automatic tree construction.
jsonparser
A fast, allocation-free JSON parser for Go that reads values by key path without unmarshaling into structs.
Device Detector
Universal PHP library for parsing user agents into browsers, OS, and device info
snarkdown
A dead-simple, dependency-free Markdown-to-HTML parser that weighs about 1kb gzipped.
url-parse
Small, dependency-light URL parser that works identically in Node.js and the browser.
