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

28Health
Library npm

truncate

A tiny zero-dependency JavaScript utility that truncates text to a length while keeping URLs and email addresses intact.

52
MIT
Used by 1
33Health
Library Cargo

csv-async

Async CSV reading and writing for Rust that mirrors the sync csv crate's API for tokio and async-std runtimes.

51
MIT
Used by 1
29Health
Library Cargo

uaparser

Pure-Rust user-agent parser built on the shared uap-core regex definitions.

49
MIT
Used by 1
51Health
SDK PyPI

chargebee-python

Official Python client library for the Chargebee subscription billing and revenue-management API.

48
MIT
Used by 1
37Health
Library PyPI

zipstream-ng

A modern Python library for generating and streaming ZIP files without buffering them in memory.

48
Other
Used by 1
28Health
Library npm

focus-options-polyfill

Polyfill for the focusOptions preventScroll flag on HTMLElement.focus().

47
MIT
Used by 1
51Health
Library PyPI

mdit-py-plugins

A collection of core syntax plugins for the markdown-it-py parser

47
MIT
Used by 1
37Health
Library PyPI

pydantic-collections

Validated, list-like collections of Pydantic models via a single BaseCollectionModel class.

47
Apache 2.0
Used by 1
31Health
Library PyPI

python3-openid

OpenID 2.0 authentication library for Python 3, with relying-party (consumer) and identity-provider (server) support.

46
Apache 2.0
Used by 1
27Health
Library PyPI

zope.event

A minimal synchronous event publishing and dispatch system for Python.

46
Other
Used by 1
23Health
Library PyPI

py-ubjson

Universal Binary JSON (UBJSON) draft-12 encoder and decoder for Python

45
Apache 2.0
Used by 1
22Health
Library npm

regexp.escape

A robust, spec-compliant polyfill for RegExp.escape() that safely escapes regex special characters, working as far down as ES3.

44
MIT
Used by 1
39Health
Library PyPI

tree-sitter-zig

A fast, incremental Zig grammar for tree-sitter that powers syntax highlighting, code folding, and structural code queries in editors and dev tools.

42
MIT
Used by 1
38Health
Library PyPI

BlendModes

Apply Photoshop-style layer blend modes to images in Python with NumPy and Pillow

38
MIT
Used by 1
64Health
Framework npm

@tryghost/api-framework

A composable request pipeline that runs Ghost's API controllers through validation, serialization, permissions, and query stages.

37
MIT
Used by 1
35Health
Library npm

memory-level

In-memory abstract-level database for Node.js and browsers, backed by a fully persistent red-black tree.

36
MIT
Used by 1
49Health
SDK npm

configcat-js

Official JavaScript SDK for evaluating ConfigCat feature flags and remote config values directly in the browser.

34
MIT
Used by 1
45Health
Library PyPI

fastar

High-performance Python tar archives powered by Rust

34
MIT
Used by 1
32Health
SDK PyPI

altcha

Create and verify ALTCHA proof-of-work CAPTCHA challenges in Python with a zero-dependency, fully typed library.

33
MIT
Used by 1
22Health
Library npm

weakmap-polyfill

A lightweight, spec-compliant ES6 WeakMap polyfill for browsers and JS engines without native support.

32
MIT
Used by 1
35Health
Library PyPI

matplotlib-inline

Inline Matplotlib backend that renders figures directly inside Jupyter and IPython notebook cells.

31
BSD 3
Used by 1
74Health
Library PyPI

Microsoft Kiota Abstractions

Core request, serialization, and auth abstractions that every Kiota-generated Python API client depends on to build and run.

31
MIT
Used by 1
23Health
Library npm

simple-xml-to-json

A tiny, dependency-free library that transpiles XML into JSON through an AST.

30
MIT
Used by 1
36Health
Library Cargo

smtp-proto

A fast, zero-copy SMTP/LMTP protocol parser for Rust covering every registered service extension.

29
Other
Used by 1

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