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

46Health
Library npm

winston-daily-rotate-file

A Winston transport that rotates log files daily, by size, and with automatic compression

929
MIT
Used by 10
80Health
Library npm

dotLottie Web

High-performance Lottie & dotLottie animation player for the web

924
MIT
Used by 10
38Health
SDK npm

aws4fetch

Compact AWS Signature V4 client built on fetch and SubtleCrypto for edge and browser runtimes

889
MIT
Used by 10
87Health
Library Cargo

serde_with

Custom de/serialization helpers for Rust's serde, via the with and serde_as annotations

865
Apache 2.0
Used by 10
92Health
SDK Cargo

Sentry Rust SDK

The official Sentry SDK for capturing errors, panics, and traces in Rust applications

753
MIT
Used by 10
72Health
Library Cargo

pin-project

Safe, ergonomic pin projection for Rust structs and enums

722
Other
Used by 10
34Health
Library npm

@lezer/lr

Runtime incremental GLR parser engine that powers Lezer grammars and CodeMirror's syntax trees

685
MIT
Used by 10
75Health
Library npm

maxmind

A blazing-fast Node.js library for IP geolocation lookups against MaxMind's binary GeoIP2/GeoLite2 (MMDB) databases.

649
MIT
Used by 10
36Health
Library npm

passport-oauth2

A generic OAuth 2.0 authentication strategy for Passport, the base class most provider-specific Passport login strategies are built on.

617
MIT
Used by 10
58Health
Library PyPI

annotated-types

Reusable constraint metadata objects for use with Python's typing.Annotated

615
MIT
Used by 10
82Health
SDK npm

Vercel Blob

Fast, typed object storage client for uploading, listing, and serving files from Vercel Blob.

600
Apache 2.0
Used by 10
53Health
Library Cargo

tree-sitter-python

A fast, incremental Python grammar for the tree-sitter parsing library

571
MIT
Used by 10
81Health
SDK PyPI

modal-client

Deploy Python functions to serverless GPU and CPU cloud infrastructure with a single decorator.

528
Apache 2.0
Used by 10
82Health
Library npm

@fastify/static

A Fastify plugin that serves static files and directories as fast as possible, with pre-compressed assets, custom caching, and directory listings built in.

498
MIT
Used by 10
79Health
SDK npm

Segment Analytics-Next

Segment's flagship JavaScript SDK for capturing and routing customer data

480
MIT
Used by 10
73Health
SDK npm

qdrant-js

Official TypeScript/JavaScript REST client for the Qdrant vector search engine.

469
Apache 2.0
Used by 10
40Health
Library npm

tar-fs

Filesystem bindings for tar-stream that pack directories into tarballs and extract tarballs back to disk using Node streams.

382
MIT
Used by 10
71Health
Library npm

remove-markdown

A zero-dependency Node.js library that strips Markdown formatting down to clean plain text.

379
MIT
Used by 10
59Health
Library npm

url-join

Joins URL path segments together and normalizes the result, like path.join for URLs

367
MIT
Used by 10
49Health
Library npm

monaco-yaml

YAML language support for the Monaco Editor, with JSON Schema-powered validation and autocompletion

332
MIT
Used by 10
37Health
Library npm

proper-lockfile

An inter-process and inter-machine lockfile utility for local and network file systems

285
MIT
Used by 10
51Health
Library PyPI

distro

Linux distribution detection library and CLI, replacing Python's removed platform.linux_distribution()

281
Apache 2.0
Used by 10
62Health
Library npm

content-disposition

Create and parse HTTP Content-Disposition headers, handling RFC 6266 filenames and RFC 8187 Unicode encoding.

247
MIT
Used by 10
30Health
Library npm

Partial JSON

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

246
MIT
Used by 10

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