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
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 npm

he

A robust, spec-compliant HTML entity encoder and decoder for JavaScript with full Unicode support.

3,597
MIT
Used by 11
31Health
Library npm

base-64

A lightweight, RFC 4648-compliant base64 encoder and decoder for JavaScript, fully compatible with atob() and btoa().

519
MIT
Used by 9
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
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
72Health
Library Cargo

Symphonia

A 100% safe, pure-Rust audio decoding and media demuxing library supporting MP3, FLAC, AAC, ALAC, Vorbis, Opus, WAV, and more.

3,392
MPL-2.0
Used by 4
66Health
SDK PyPI

arxiv.py

A typed Python client for the arXiv API, handling pagination, retries, and Atom feed parsing.

1,544
MIT
Used by 4
35Health
Library npm

@iarna/toml

A fast, spec-compliant TOML parser and stringifier for Node.js with a familiar JSON-style interface.

340
Other
Used by 4
83Health
Library PyPI

ujson

Ultra-fast JSON encoder and decoder for Python, written in C

4,496
BSD 3
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
50Health
Library npm

io-ts

A TypeScript runtime type system that derives static types and runtime decoders/encoders from one composable schema.

6,813
MIT
Used by 2
48Health
Library npm

heic-to

A JavaScript library that converts HEIC/HEIF images to JPEG, PNG, or bitmap entirely in the browser.

349
Other
Used by 2
70Health
Library npm

lightGallery

A modular, responsive lightbox gallery plugin for images and video, with official React, Vue, and Angular wrappers.

7,053
GPL 3.0
Used by 1
74Health
Library Cargo

iced-x86

Blazing-fast, correct x86/x64 disassembler, assembler, decoder, and encoder written in pure Rust.

3,563
MIT
Used by 1
49Health
Library npm

jsts

JavaScript port of the Java JTS Topology Suite for spatial predicates, geometry operations, and OGC Simple Features processing.

1,562
Other
Used by 1
47Health
Library npm

fast-png

A pure JavaScript PNG encoder and decoder supporting 16-bit depth, Adam7 interlacing, indexed color, and full APNG animation frames.

459
MIT
Used by 1
61Health
SDK PyPI

zenpy

A Python SDK for the Zendesk, Chat, Talk, and Help Center APIs with built-in caching, rate-limit handling, and lazy-loaded object relationships.

370
GPL 3.0
Used by 1
37Health
Library Cargo

Ogg

Pure-Rust decoder and encoder for the Ogg container format, implementing the xiph.org Ogg framing spec.

132
BSD 3
Used by 1
27Health
Library Cargo

libwebp-sys

Low-level bindgen FFI bindings to Google's libwebp for encoding and decoding WebP images in Rust.

48
MIT
Used by 1
22Health
Library npm

windows-1252

A robust JavaScript implementation of the windows-1252 character encoding as defined by the WHATWG Encoding Standard.

46
MIT
Used by 1
23Health
Library PyPI

py-ubjson

Universal Binary JSON (UBJSON) draft-12 encoder and decoder for Python

45
Apache 2.0
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