Open Source Packages
Libraries, frameworks, tools, and SDKs used by the apps in this directory — scored the same way as the apps themselves.
All Packages
Category
Sort:Used by Most Apps
plugin-installer
The Composer installer that registers Craft CMS's craft-plugin package type and builds the plugin manifest Craft reads at runtime.
QStash Python SDK
Official Python SDK for Upstash QStash serverless messaging and scheduling.
Texting Robots
A Rust-native robots.txt parser, battle-tested against tens of millions of real-world sites.
Airbyte Python CDK
A framework for building Airbyte source and destination data connectors in Python.
esbuild-plugin-stimulus
esbuild plugin that auto-loads Stimulus controllers from a folder by filename convention.
node-parse-numeric-range
Parses human-friendly numeric range expressions like "1-10,20-30" into a flat array of numbers.
RoadRunner Jobs
A PHP SDK for dispatching and consuming background jobs through RoadRunner's queue plugin
Symfony Brevo Mailer
Symfony Mailer bridge for sending transactional email through Brevo over SMTP or API.
Duo Universal PHP SDK
Official PHP SDK for adding Duo OIDC-based two-factor authentication to web applications.
grenad
A Rust library to sort, merge, write, and read immutable key-value pairs on disk
hyper-openssl
TLS support for Hyper HTTP clients and servers via rust-openssl, with an HttpsConnector, session-cache reuse, and ALPN negotiation.
int-enum
A derive macro for lossless, span-aware conversion between Rust enums and their integer representations.
panzi-json-logic
A pure Python 3 implementation of JsonLogic and CertLogic for evaluating portable, JSON-encoded rules against data.
@acemir/cssom
A pure-JavaScript CSS parser and CSS Object Model implementation.
Crashtest
A small Python library that makes exception handling and stack inspection easier and richer.
langchain-tavily
The official LangChain integration for Tavily, exposing search, extract, crawl, map, and research as ready-to-use agent tools.
utils
A centralized collection of useful, oft-repeated helper functions for everyday Python code.
radsort
Radix sort for Rust slices by scalar keys — integers, floats, chars, and bools — with a digit-skipping optimization for real-world speed.
rcan
A Rust crate for capability-based authorization through signed, chainable ed25519 delegations.
window_clipboard
Cross-platform clipboard access for Rust GUI apps built on raw-window-handle
build-info
Collect compile-time build information about your Rust crate and expose it at runtime.
elastic-transport-python
The shared HTTP transport layer powering Elastic's Python client libraries
is_executable
A tiny Rust crate that checks whether a path points to an executable file, across Unix, Windows, and WASM.
Microsoft Agent 365 Notifications SDK
Type-safe agent notification and lifecycle-event handling for email, Word, Excel, and PowerPoint scenarios in Microsoft 365 agents.