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

36Health
Library Cargo

hex

Encode and decode data to and from hexadecimal in Rust, with no_std and serde support.

272
Apache 2.0
Used by 28
95Health
Library PyPI

PyArrow

Python bindings for Apache Arrow's columnar in-memory format, giving pandas, NumPy, and data pipelines a fast, zero-copy way to move and process tabular data.

17,110
Apache 2.0
Used by 27
61Health
Library npm

usehooks-ts

A tree-shakable collection of 30+ ready-to-use React hooks, written in TypeScript.

7,857
MIT
Used by 27
69Health
Library npm

query-string

Parse and stringify URL query strings in JavaScript with flexible array, number, and boolean handling.

6,906
MIT
Used by 27
92Health
Library Go

compress

A Go compression toolkit with a pure-Go Zstandard codec, S2 (a faster Snappy), and assembly-accelerated drop-in replacements for gzip, zip, zlib, and lzw.

5,635
BSD 3
Used by 27
71Health
Library Cargo

proc-macro2

A drop-in substitute for Rust's compiler proc_macro API that works anywhere and makes procedural macros unit-testable.

934
Other
Used by 27
91Health
Library PyPI

jsonschema

The reference implementation of JSON Schema validation for Python, supporting every draft from 3 to 2020-12.

4,980
MIT
Used by 26
45Health
Library npm

color

Immutable JavaScript color conversion and manipulation with CSS string support

4,934
MIT
Used by 26
63Health
Library npm

jsonc-parser

A fault-tolerant scanner and parser for JSONC (JSON with comments), with SAX-style visiting, DOM trees, and edit APIs.

758
MIT
Used by 26
50Health
Library Cargo

serde_yaml

Strongly typed YAML serialization and deserialization for Rust, built on Serde

1,018
Apache 2.0
Used by 25
46Health
Library npm

openapi-types

Type-safe TypeScript definitions for OpenAPI 2.0, 3.0, and 3.1 specification documents, covering paths, schemas, and components.

921
MIT
Used by 25
81Health
Library PyPI

idna

Internationalized Domain Names for Python — IDNA 2008 and UTS #46 encoding and decoding

294
BSD 3
Used by 25
52Health
Library Go

fsnotify

A Go library that delivers cross-platform filesystem change notifications through a single Watcher API backed by native OS event mechanisms.

10,778
BSD 3
Used by 24
50Health
Library npm

ms

Tiny millisecond conversion utility for parsing and formatting human-readable time strings

5,548
MIT
Used by 24
65Health
Library npm

simple-git

A lightweight, promise-based interface for running git commands from Node.js

3,855
MIT
Used by 24
44Health
Library npm

pluralize

Pluralize and singularize any English word based on a count, with customizable rules.

2,215
MIT
Used by 24
40Health
Library npm

picocolors

The tiniest, fastest zero-dependency library for ANSI terminal color formatting in Node.js.

1,751
Other
Used by 24
45Health
Library PyPI

six

A single-file library that smooths over Python 2 and 3 API differences.

1,031
MIT
Used by 24
89Health
Library Cargo

zip

A Rust library for reading and writing ZIP archives with broad compression and encryption support

351
MIT
Used by 24
63Health
Library npm

async

Higher-order async utility functions for callback, async/await, and promise-based control flow in Node.js and the browser.

28,131
MIT
Used by 23
77Health
Library PyPI

tenacity

A general-purpose Python retrying library that adds configurable retry behavior to almost anything

8,787
Apache 2.0
Used by 23
94Health
Library Cargo

rustls

A modern, memory-safe TLS library for Rust with no unsafe code and no legacy crypto by default.

7,619
Other
Used by 23
39Health
Library npm

deepmerge

Deeply merges the enumerable properties of two or more JavaScript objects into a new object

2,814
MIT
Used by 23
46Health
Library Cargo

lazy_static

A macro for declaring lazily evaluated static variables in Rust

2,034
Apache 2.0
Used by 23

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