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

65Health
Library npm

Ajv

The fastest JSON Schema validator for Node.js and the browser, compiling schemas straight into executable validation code.

14,828
MIT
Used by 67
90Health
Library npm

Prisma Client

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

47,610
Apache 2.0
Used by 46
38Health
Library npm

gray-matter

Fast, dependable front-matter parser for YAML, JSON, TOML, and CoffeeScript metadata blocks

4,490
MIT
Used by 31
43Health
Library npm

passport-jwt

A Passport.js strategy for authenticating requests using JSON Web Tokens

1,981
MIT
Used by 19
75Health
Library npm

NumberFlow (React)

An animated number component for React that transitions digits, formats locales, and respects reduced-motion preferences

7,693
MIT
Used by 15
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
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
31Health
Library npm

Partial JSON

Parses incomplete JSON strings streamed token-by-token from an LLM into usable JavaScript values as they arrive.

244
MIT
Used by 9
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
84Health
Library PyPI

json_repair

Repair malformed JSON from LLMs, APIs, logs, and user input — a drop-in fallback for json.loads().

5,096
MIT
Used by 8
89Health
Library PyPI

msgspec

A fast, zero-cost serialization and validation library for JSON, MessagePack, YAML, and TOML in Python.

4,105
BSD 3
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
89Health
SDK npm

node-oracledb

Oracle's official Node.js driver for connecting JavaScript and TypeScript apps directly to Oracle Database, in pure JS or with an optional native client.

2,368
Other
Used by 6
41Health
Library npm

fast-safe-stringify

Fast JSON.stringify drop-in that safely handles circular references

359
MIT
Used by 6
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
47Health
Library npm

xml-js

Converts XML text to JavaScript objects or JSON and back, preserving element order.

1,341
MIT
Used by 5
77Health
Library npm

jsonata

A lightweight query and transformation language for filtering, mapping, and reshaping JSON data with concise, path-based expressions.

2,689
MIT
Used by 4
46Health
Library Cargo

whatlang

Fast, lightweight natural language and script detection for Rust

1,087
MIT
Used by 3
81Health
Library PyPI

portalocker

Cross-platform file locking for Python, with Redis-backed distributed locks built in.

326
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
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

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