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

63Health
SDK Cargo

fluvio

The Rust client for Fluvio, a lean distributed data streaming engine.

5,257
Apache 2.0
Used by 1
51Health
Library npm

react-imask

React bindings for IMask: a masked input component, a useIMask hook, and an IMaskMixin HOC for wrapping any existing input.

5,182
MIT
Used by 1
58Health
Library PyPI

aiortc

A pure-Python implementation of WebRTC and ORTC built on asyncio, for real-time audio, video, and data channel communication.

5,113
BSD 3
Used by 1
75Health
Tool npm

memlab

Meta's end-to-end framework for finding JavaScript memory leaks and analyzing heap snapshots

5,066
MIT
Used by 1
89Health
SDK Cargo

iggy

The official Rust SDK for Apache Iggy, a hyper-efficient persistent message streaming platform.

5,057
Apache 2.0
Used by 1
50Health
Library npm

doT

A fast, concise JavaScript template engine with zero dependencies, built for high-performance rendering in Node.js and browsers.

5,038
MIT
Used by 1
52Health
Library Composer

PHP-FFMpeg

Object-oriented PHP library that drives the FFmpeg binary for audio and video processing.

5,019
MIT
Used by 1
84Health
Library PyPI

django-silk

Live request, SQL, and code profiling for Django apps, viewable through an in-browser inspection UI.

4,995
MIT
Used by 1
51Health
Library npm

exif-js

A dependency-free JavaScript library for reading EXIF and IPTC metadata from images in the browser.

4,979
MIT
Used by 1
74Health
Framework PyPI

Flask-AppBuilder

A rapid-application-development framework on Flask with automatic CRUD, REST APIs, and fine-grained role-based security.

4,962
BSD 3
Used by 1
60Health
Library Composer

ProxyManager

Generate, instantiate, and operate object proxies for lazy loading and AOP in PHP

4,942
MIT
Used by 1
73Health
Library npm

slonik

A strictly-typed Node.js PostgreSQL client with runtime validation, safe connection handling, and composable raw SQL.

4,938
BSD 3
Used by 1
52Health
Library Composer

Money

A PHP implementation of Fowler's Money pattern for safe currency math, formatting, and conversion.

4,869
MIT
Used by 1
84Health
Library Cargo

cursive

A Rust TUI library for building terminal interfaces from composable, focusable views.

4,856
MIT
Used by 1
88Health
Library Cargo

redb

A pure-Rust embedded key-value database with ACID transactions, MVCC, and a zero-copy BTreeMap-style API.

4,834
Other
Used by 1
56Health
Library PyPI

nodriver

Async browser automation and web scraping that talks directly to Chromium via CDP, with no Selenium, WebDriver, or ChromeDriver required.

4,824
AGPL 3.0
Used by 1
58Health
Library Cargo

nalgebra

General-purpose linear algebra library for the Rust ecosystem

4,801
Apache 2.0
Used by 1
95Health
Library Composer

graphql-php

A mature, spec-compliant PHP implementation of GraphQL for building schema-driven API servers.

4,713
MIT
Used by 1
51Health
Library npm

connected-react-router

Redux bindings that keep React Router's history in sync with your store, both ways.

4,683
MIT
Used by 1
42Health
Library Cargo

Plotters

A pure-Rust drawing library for rendering data plots and charts to bitmap, SVG, and WebAssembly canvas backends.

4,632
MIT
Used by 1
84Health
Library Cargo

smoltcp

A standalone, heap-free TCP/IP networking stack for bare-metal and embedded Rust systems.

4,615
Other
Used by 1
82Health
Library PyPI

TensorFlow Datasets

Ready-to-use, versioned public datasets exposed as tf.data.Dataset objects, with first-class support for TensorFlow, JAX, and NumPy pipelines.

4,599
Apache 2.0
Used by 1
53Health
Library npm

v-calendar

An elegant calendar and date-picker plugin for Vue.js, with attribute-based highlights, dots, bars, and popovers.

4,514
MIT
Used by 1
57Health
Library Composer

knplabs/knp-snappy

A PHP library for generating PDFs, thumbnails, and snapshots from URLs or HTML pages.

4,475
MIT
Used by 1

Join founders buildingwith open source

Opinionated takes, migration guides, cost-saving tips, and insights from the open source ecosystem.

Subscribe on Substack
Join 750+ subscribers