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

93Health
Library PyPI

Pydantic

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

28,772
MIT
Used by 102
66Health
Library npm

remark

A plugin-powered markdown processor that parses, transforms, and serializes markdown on top of unified.

8,995
MIT
Used by 48
90Health
Library npm

Prisma Client

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

47,610
Apache 2.0
Used by 46
48Health
Library npm

unified

Parse, inspect, transform, and serialize content through syntax-tree plugins.

5,030
MIT
Used by 44
40Health
Library npm

unist-util-visit

Tiny utility to walk unist syntax trees and run a visitor on matching nodes

357
MIT
Used by 36
50Health
Library npm

rehype

A unified-based HTML processor with a large plugin ecosystem

2,255
MIT
Used by 15
45Health
Library npm

mdast-util-from-markdown

Parses markdown into a fully spec-compliant mdast syntax tree using the micromark tokenizer.

290
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
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
48Health
Library npm

mdast-util-to-markdown

Serializes an mdast syntax tree back into CommonMark-compatible markdown text, with pluggable handlers for custom syntax extensions.

141
MIT
Used by 7
50Health
Library Go

gods

GoDS is a generic, type-safe collection of Go data structures — lists, sets, maps, trees, stacks, and queues sharing one uniform container interface.

17,466
Other
Used by 4
82Health
Library PyPI

lark

A modern parsing toolkit for Python supporting Earley, LALR(1), and CYK parsers with automatic tree construction.

5,983
MIT
Used by 4
60Health
Library npm

Vue Json Pretty

A Vue component for rendering JSON data as a collapsible, selectable tree view

1,469
MIT
Used by 4
49Health
Library npm

react-inspector

Chrome DevTools-style object, table, and DOM inspector components for React apps.

850
MIT
Used by 4
39Health
Library Cargo

roxmltree

Parse XML into a fast, read-only tree in Rust with zero unsafe code and no dependencies.

535
Apache 2.0
Used by 4
49Health
Library npm

react-json-view

A zero-dependency, fully typed React component for rendering and editing JSON as a collapsible, themeable tree.

419
MIT
Used by 4
37Health
Library npm

react18-json-view

An interactive React component for displaying and editing JSON objects and arrays with themes and collapsible nodes.

337
MIT
Used by 4
53Health
SDK PyPI

github3.py

A comprehensive, actively developed Python wrapper around GitHub's REST API v3.

1,257
BSD 3
Used by 3
54Health
Library npm

react-accessible-treeview

A WAI-ARIA compliant React treeview component with full keyboard navigation, multi-select, and render-prop-based customization.

324
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
73Health
Library npm

React Complex Tree

An unopinionated, accessible React tree component with multi-select, drag-and-drop, and full keyboard support.

1,383
MIT
Used by 2
38Health
Tool PyPI

ghp-import

A small CLI that copies a built docs directory straight onto your repo's gh-pages branch.

626
Apache 2.0
Used by 2

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