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

90Health
Library npm

Prisma Client

Auto-generated, type-safe database client for Node.js and TypeScript.

47,610
Apache 2.0
Used by 46
75Health
Library npm

file-type

Detect the file type of a buffer, stream, or file by reading its magic number.

4,326
MIT
Used by 44
75Health
Library npm

execa

A modern process-execution library for Node.js with template-string syntax and zero shell-injection risk.

7,602
MIT
Used by 43
75Health
Library npm

js-base64

Pure-JavaScript Base64 encoder/decoder with full Unicode and URL-safe support

4,361
BSD 3
Used by 20
37Health
Library Cargo

bincode

A compact, zero-fluff binary encoder and decoder for turning Rust structs into space-efficient byte streams.

3,060
MIT
Used by 17
42Health
Library npm

GSAP

The industry-standard JavaScript animation library for tweening CSS, SVG, canvas, and UI with rock-solid cross-browser reliability.

28,405
Other
Used by 11
40Health
Library Cargo

byteorder

A lightweight Rust library for reading and writing numbers in big-endian and little-endian order

1,096
Other
Used by 8
55Health
SDK npm

msgraph-sdk-javascript

Official Microsoft Graph JavaScript SDK for calling the Graph API from Node.js and the browser.

833
MIT
Used by 8
85Health
Framework npm

Capacitor

Build native iOS, Android, and Progressive Web Apps from a single web codebase

16,662
MIT
Used by 7
94Health
Library npm

gridstack.js

A dependency-free TypeScript library for building draggable, resizable, responsive dashboard grid layouts in the browser.

9,115
MIT
Used by 7
45Health
Library npm

ffmpeg-static

Resolve static ffmpeg and ffprobe binary paths for macOS, Linux, and Windows in Node.js — no system install required.

1,392
GPL 3.0
Used by 6
81Health
Library npm

@capacitor/app

The official Capacitor plugin for app lifecycle events, deep links, and app state

678
MIT
Used by 6
56Health
Library Cargo

tree-sitter-java

A fast, incremental Java grammar for the tree-sitter parsing library

275
MIT
Used by 6
84Health
Tool npm

quicktype

Generate strongly-typed models and serializers from JSON, Schema, TypeScript, or GraphQL

13,868
Apache 2.0
Used by 5
87Health
Framework PyPI

PySpark

Python API for Apache Spark, the unified engine for large-scale distributed data processing

43,997
Apache 2.0
Used by 4
53Health
Library Go

filetype

Fast, dependency-free Go library that detects file and MIME types from magic number signatures.

2,299
MIT
Used by 4
78Health
Library npm

react-native-pdf

A cross-platform PDF viewer component for React Native, with zoom, paging, password protection, and native text selection.

1,810
MIT
Used by 4
76Health
Library PyPI

FlatBuffers

Google's memory-efficient, zero-copy serialization library for cross-language data exchange

26,459
Apache 2.0
Used by 3
62Health
Library npm

isBinaryFile

Detects whether a file or buffer is binary or text in Node.js, similar to Perl's -B switch, with encoding hints for accurate UTF-16, Latin-1, and CJK detection.

176
MIT
Used by 3
34Health
SDK npm

sns-payload-validator

Verifies AWS SNS message signatures for HTTP/S and Lambda payloads.

13
MIT
Used by 3
94Health
Framework PyPI

Apache Beam

A unified programming model for defining batch and streaming data-parallel pipelines

8,662
Apache 2.0
Used by 2
60Health
Library Cargo

jni-rs

Complete, safe Rust bindings to the Java Native Interface for two-way Rust and Java interop.

1,597
Apache 2.0
Used by 2
86Health
Library PyPI

tree-sitter-language-pack

Precompiled tree-sitter parsers and queries for 306+ languages in one install

466
MIT
Used by 2
62Health
Tool npm

n

A dependency-free Bash CLI for interactively installing and switching Node.js versions.

19,513
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