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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OpenAI Agents SDK
OpenAI's provider-agnostic Python framework for building multi-agent LLM workflows with tools, guardrails, and tracing.
Mastra Core
The TypeScript framework for building AI agents, workflows, and RAG apps with unified access to 40+ LLM providers.
driver.js
A dependency-free, ~5kb TypeScript library for building product tours, feature highlights, and focus overlays.
PHPMailer
The classic full-featured email creation and sending library for PHP
flatpickr
A lightweight, dependency-free JavaScript datetime picker with themes, locales, and plugins
brotli
Python bindings for Google's Brotli compression library, offering fast one-shot and streaming encode/decode APIs.
showdown
A bidirectional Markdown-to-HTML and HTML-to-Markdown converter for JavaScript, usable in Node or the browser.
PhpSpreadsheet
Read, write, and manipulate Excel, CSV, and ODS spreadsheet files in pure PHP with no external office suite required.
Nextra
Next.js-powered static site generator for docs, blogs, and content sites
redux-persist
Persist and automatically rehydrate a Redux store across sessions, with pluggable storage engines, migrations, and state reconcilers.
tonic
An async, high-performance gRPC over HTTP/2 framework for Rust built on Tokio and Hyper
flag-icons
A curated collection of every country flag as an SVG, distributed as a ready-to-use CSS icon library.
goose
A database migration tool for Go, driven by SQL files or plain Go functions, with a CLI and an embeddable provider library.
micro
Tiny, async/await-first library for building HTTP microservices in Node.js
react-player
A single React component that plays video and audio from YouTube, Vimeo, Wistia, Mux, Twitch, TikTok, Spotify, HLS, DASH, and local files.
Symfony Console
The PHP framework component for building beautiful, testable command-line applications
react-joyride
A React component and hook for building guided product tours with spotlight overlays and floating tooltips.
AWS SDK for JavaScript v2
The legacy JavaScript SDK for calling AWS services like S3, DynamoDB, and EC2 from Node.js and the browser.
gocron
A fluent, in-process Go library for scheduling jobs on cron, interval, and calendar-based rules with built-in distributed coordination.
isort
Automatically sorts and organizes Python import statements
Werkzeug
The comprehensive WSGI utility library that powers Flask and countless Python web apps.
gevent
Coroutine-based concurrency for Python, built on greenlets and a fast libev/libuv event loop.
go-spew
A deep pretty printer for Go data structures with full type, pointer, and cycle-safe debug output.
express-validator
A chainable Express middleware that wraps validator.js to validate and sanitize incoming request data with minimal boilerplate.
