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

92Health
Library npm

AI SDK

Provider-agnostic TypeScript toolkit for building AI apps and agents with any LLM.

26,733
Apache 2.0
Used by 105
93Health
Library PyPI

Pydantic

Data validation and settings management using Python type hints, backed by a Rust core.

28,772
MIT
Used by 102
60Health
Library npm

Winston

A battle-tested Node.js logging library with pluggable transports, custom formats, and multiple log levels.

24,520
MIT
Used by 50
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
44Health
Library npm

electron-devtools-installer

Installs Chrome DevTools extensions like Redux and React DevTools directly into Electron apps.

1,222
MIT
Used by 10
78Health
Library npm

Orama

A dependency-free full-text, vector, and hybrid search engine that runs entirely in JavaScript.

10,550
Apache 2.0
Used by 9
37Health
Library npm

fastest-levenshtein

The fastest JavaScript/TypeScript implementation of Levenshtein edit distance

774
MIT
Used by 9
88Health
Framework npm

Mastra Core

The TypeScript framework for building AI agents, workflows, and RAG apps with unified access to 40+ LLM providers.

28,036
Apache 2.0
Used by 8
88Health
Library npm

Remeda

A TypeScript-first utility library with data-first and data-last function variants, lazy pipe evaluation, and fully typed transformations.

5,427
MIT
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
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
86Health
Library npm

turf

The complete, modular geospatial analysis engine for JavaScript and TypeScript, bundling every Turf.js module under one install.

10,482
MIT
Used by 5
98Health
Tool npm

npm

The default command-line package manager for Node.js and the JavaScript ecosystem

10,114
Used by 5
46Health
Library Cargo

whatlang

Fast, lightweight natural language and script detection for Rust

1,087
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
49Health
Library PyPI

prisma-client-py

Auto-generated, fully type-safe Python database client built on Prisma's schema and Rust query engine.

2,095
Apache 2.0
Used by 2
79Health
Library npm

GraphQL Inspector Core

The programmatic engine behind GraphQL Inspector for schema diffing, breaking-change detection, and document validation.

1,767
MIT
Used by 2
74Health
Library Go

xstrings

A zero-dependency Go package that ports common string functions from Python, Ruby, PHP, and Perl into idiomatic, UTF-8-safe Go.

1,412
MIT
Used by 2
48Health
Library npm

leven

Fast, dependency-free Levenshtein distance calculation for comparing and matching strings in JavaScript.

734
MIT
Used by 2
35Health
Library npm

js-levenshtein

The fastest JavaScript implementation of the Levenshtein edit-distance algorithm, optimized for speed and low memory use.

510
MIT
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
79Health
Library npm

Supercluster

A blazing-fast geospatial point-clustering library for grouping map markers by zoom level.

2,372
Other
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

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