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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node-mssql
The Node.js client for Microsoft SQL Server, wrapping Tedious (or MSNodeSQLv8) behind a unified pool, request, and transaction API.
connect-es
Type-safe RPC clients and servers for TypeScript, built from Protobuf schemas and servable over Connect, gRPC, or gRPC-Web.
firebase-admin-node
Firebase Admin Node.js SDK for privileged, server-side access to Firebase Authentication, Firestore, Realtime Database, Cloud Messaging, and Storage.
jest-junit
A Jest reporter that converts test results into JUnit-compatible XML for CI dashboards and test-analytics tools.
@nestjs/event-emitter
Event-driven architecture for NestJS, built on EventEmitter2
DataLoader
A batching and caching layer that coalesces per-request data loads into a fraction of the backend calls.
elasticsearch-js
The official Node.js client for Elasticsearch, giving JavaScript and TypeScript apps a typed, fully-featured way to talk to an Elasticsearch cluster.
linkifyjs
A fast, plugin-extensible library that finds URLs, email addresses, hashtags, and mentions in plain text and converts them into HTML links.
remove-markdown
A zero-dependency Node.js library that strips Markdown formatting down to clean plain text.
proper-lockfile
An inter-process and inter-machine lockfile utility for local and network file systems
content-disposition
Create and parse HTTP Content-Disposition headers, handling RFC 6266 filenames and RFC 8187 Unicode encoding.
resvg-js
A high-performance SVG-to-PNG renderer for Node.js and browsers, powered by Rust's resvg engine via napi-rs and WebAssembly.
readable-stream
A standalone, spec-accurate copy of Node.js core streams for consistent behavior across Node versions and in browsers.
deep-equal
A standalone port of Node's own assert.deepEqual algorithm, giving spec-accurate deep equality checks in Node and the browser alike.
Mastra Core
The TypeScript framework for building AI agents, workflows, and RAG apps with unified access to 40+ LLM providers.
express-validator
A chainable Express middleware that wraps validator.js to validate and sanitize incoming request data with minimal boilerplate.
@clerk/backend
The official JavaScript SDK for Clerk's Backend API and JWT session verification.
dd-trace
Datadog's official Node.js APM tracer, auto-instrumenting 100+ frameworks for tracing, profiling, security, and LLM observability.
officeParser
Parse Office documents into a rich AST and generate Markdown, HTML, PDF, or RAG chunks
verdaccio
A lightweight, zero-config-required private npm registry with built-in caching and proxying of public registries.
isomorphic-git
A pure JavaScript reimplementation of git that runs identically in Node.js and the browser.
rss-parser
Lightweight RSS and Atom feed parser for Node.js and the browser that turns XML feeds into plain JavaScript objects
feed
Generate RSS 2.0, Atom 1.0, and JSON Feed 1.0 syndication feeds from a single TypeScript API.
unique-names-generator
A zero-dependency, tree-shakeable library for generating random or seeded unique name strings from built-in or custom word dictionaries.
