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

40Health
Library PyPI

django-timezone-field

Django model, form, and REST framework fields for zoneinfo and pytz timezone objects

415
Other
Used by 2
77Health
Library Composer

vapor-core

Core service providers and runtime client that run Laravel applications serverlessly on AWS Lambda.

414
MIT
Used by 2
87Health
Library npm

ol-mapbox-style

Render Mapbox and MapLibre vector styles as native OpenLayers map layers.

413
Other
Used by 2
75Health
Library PyPI

sphinxcontrib-mermaid

Embed Mermaid diagrams directly in your Sphinx-powered documentation

413
Other
Used by 2
34Health
Library npm

xmlbuilder2

A fluent, chainable XML builder and parser for Node.js with XPath and object/JSON conversion support.

409
MIT
Used by 2
71Health
Library Composer

Livewire Rate Limiting

Apply rate limiters to Laravel Livewire component actions with a single trait

407
MIT
Used by 2
33Health
Library Cargo

tl

Fast, zero-copy HTML parser for Rust with a query-selector API

407
MIT
Used by 2
76Health
Tool npm

vitepress-plugin-llms

A zero-config VitePress plugin that generates llms.txt and llms-full.txt so LLMs can consume your docs as clean Markdown.

405
MIT
Used by 2
42Health
Library npm

vue3-notification

A lightweight, animatable toast notification component for Vue 3, triggered via an imperative API or a Composition API hook.

400
MIT
Used by 2
49Health
Library Cargo

Ciborium

CBOR serialization and deserialization for Rust, built on Serde

394
Apache 2.0
Used by 2
43Health
Library PyPI

Piexif

A pure-Python library for reading, writing, inserting, and removing EXIF metadata in JPEG and WebP images.

391
MIT
Used by 2
37Health
Library Cargo

num_enum

Type-safe Rust derive macros for converting between primitive integers and enums.

389
Other
Used by 2
70Health
Tool npm

prettier-plugin-packagejson

A Prettier plugin that sorts package.json keys automatically via sort-package-json.

388
MIT
Used by 2
55Health
Library npm

fonteditor-core

Parse, write, and convert TTF, WOFF, WOFF2, EOT, SVG, and OTF fonts in Node.js and the browser.

387
MIT
Used by 2
64Health
Library PyPI

concurrent-log-handler

Drop-in replacement for Python's RotatingFileHandler that lets multiple processes safely write to and rotate the same log file.

385
Apache 2.0
Used by 2
53Health
SDK PyPI

Qianfan Python SDK

The Python SDK for Baidu's Qianfan large-model (MaaS) platform, including ERNIE models.

382
Apache 2.0
Used by 2
49Health
Library PyPI

pytest-cases

Separate test code from test cases in pytest, with fixture unions and parametrization goodies for readable, reusable test suites.

378
BSD 3
Used by 2
41Health
Library Cargo

cliclack

Beautiful, minimal, opinionated CLI prompts for building interactive Rust command-line apps.

375
MIT
Used by 2
76Health
Library Cargo

HdrHistogram (Rust)

A native Rust port of HdrHistogram for fast, high-dynamic-range recording and analysis of latency and value distributions.

372
Apache 2.0
Used by 2
39Health
Library npm

Tunnel-SSH

Extendable SSH port-forwarding tunnels for Node.js

368
MIT
Used by 2
70Health
Library npm

@json2csv/node

Node.js Transform stream and promise-based parser for converting JSON and NDJSON into CSV.

366
MIT
Used by 2
47Health
Library Cargo

quick-cache

A lightweight, high-performance concurrent cache for Rust with S3-FIFO/CLOCK-Pro eviction, atomic get-or-insert coordination, and per-item weights.

363
MIT
Used by 2
61Health
Library Composer

intl-extra

Locale-aware internationalization filters for Twig templates

360
MIT
Used by 2
65Health
Library Cargo

charabia

Meilisearch's multilingual Rust tokenizer for segmenting and normalizing text

359
MIT
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