Automatic HTTPS for Go programs — the production-grade ACME client library that powers Caddy, obtaining and renewing TLS certificates with zero manual cert management.

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Library PyPI

OAuthLib

Generic, spec-compliant OAuth1, OAuth2, and OpenID Connect implementation for Python

csv-parser

A zero-dependency streaming CSV parser for Node.js that converts CSV into JSON at high speed.

@capacitor/app

The official Capacitor plugin for app lifecycle events, deep links, and app state

toml-node

A zero-dependency, spec-compliant TOML parser for Node.js with BigInt and Temporal support.

tree-sitter-java

A fast, incremental Java grammar for the tree-sitter parsing library

set-cookie-parser

Parse raw Set-Cookie header values into structured JavaScript cookie objects

quicktype

Generate strongly-typed models and serializers from JSON, Schema, TypeScript, or GraphQL

pendulum

A drop-in replacement for Python's datetime with timezone-aware objects by default and a friendlier API.

fake-useragent

Up-to-date user-agent string faker backed by a real-world browser usage database, bundled offline.

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.

fpdf2

A pure-Python library for generating and manipulating PDF documents, with text, images, tables, barcodes, SVG, and digital signing built in.

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.