Directory

Open Source Packages

Libraries, frameworks, tools, and SDKs used by the apps in this directory — scored the same way as the apps themselves.

5929 packages

All Packages

Kind1
Library4824 SDK549 Tool342 Framework214
Category2
Utilities Ids Helpers1293 Serialization Data Formats487 UI Component Libraries383 Cli Terminal323 Authentication Authorization289 Cryptography Hashing259 Web Frameworks API Servers246 Build Tools Bundlers227 Image Media Processing213 Cloud Sdks200 Database Drivers Clients200 Async Concurrency Runtimes194
Tags
React667 Python638 Javascript591 Rust485 Typescript408 Hacktoberfest308 PHP304 Nodejs280 Parser224 JSON205 Laravel203 Go192
Sort:Used by Most Apps
Used by Most Apps Health Score Most Stars A-Z
Showing 11 of 5929 packages
Framework Async Concurrency Runtimes Cloud Sdks Clear all
93Health
Framework Cargo

Tokio

The async runtime powering most of Rust's networked, concurrent, and I/O-bound applications.

33,150
MIT
Used by 95
91Health
Framework npm

Pulumi

Infrastructure as Code in your favorite programming language, powered by a shared multi-language deployment engine.

25,682
Apache 2.0
Used by 6
96Health
Framework npm

aws-cdk

The core AWS CDK v2 construct library for defining cloud infrastructure as code and deploying it via CloudFormation.

12,901
Apache 2.0
Used by 3
85Health
Framework npm

workflow

Durable, resilient workflow execution for TypeScript, with automatic retries, persistence, and built-in observability.

2,399
Apache 2.0
Used by 2
85Health
Framework npm

alchemy

Infrastructure-as-Effects for TypeScript — cloud resources, IAM, and app logic in one type-safe Effect program.

1,228
Apache 2.0
Used by 2
85Health
Framework Cargo

actix

A Rust actor framework for building concurrent, message-driven systems on top of Tokio.

9,242
Other
Used by 1
91Health
Framework PyPI

Twisted

A mature, event-driven networking engine for Python built around the reactor pattern, with async HTTP, SSH, DNS, IMAP, and IRC protocols built in.

5,979
MIT
Used by 1
56Health
Framework Cargo

tarpc

An async Rust RPC framework that defines services directly in code via a macro instead of a separate IDL, with pluggable transports and deadline propagation.

3,739
MIT
Used by 1
75Health
Framework PyPI

taskiq

An async-first distributed task queue for Python with type-safe tasks, pluggable brokers, and first-class FastAPI/AioHTTP integration.

2,333
MIT
Used by 1
72Health
Framework PyPI

Functions Framework for Python

An open-source FaaS framework for writing portable Python functions that run anywhere.

968
Apache 2.0
Used by 1
78Health
Framework Cargo

containerd-shim

Rust framework for building containerd runtime v2 shims with TTRPC, logging, and event plumbing built in

243
Apache 2.0
Used by 1

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