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

58Health
Library Cargo

bpaf

Lightweight, flexible Rust command line argument parser with derive and combinatoric APIs.

462
Other
Used by 1
59Health
Library PyPI

cymem

A Cython memory pool for RAII-style, garbage-collector-tied memory management

462
MIT
Used by 1
74Health
Library Cargo

mail-parser

Zero-copy, RFC 5322/MIME-conformant e-mail parsing library for Rust with no required dependencies.

461
Other
Used by 1
83Health
Library PyPI

Mako

A fast, embedded-Python templating language that compiles templates directly into Python modules for near-native rendering speed.

461
MIT
Used by 1
45Health
Library npm

fast-png

A pure JavaScript PNG encoder and decoder supporting 16-bit depth, Adam7 interlacing, indexed color, and full APNG animation frames.

459
MIT
Used by 1
36Health
Library npm

react-lifecycles-compat

Polyfill that makes React 16.3+ lifecycles work on older versions of React.

459
MIT
Used by 1
81Health
Tool PyPI

Sphinx-Gallery

A Sphinx extension that executes Python example scripts and builds a rendered HTML gallery from their output.

457
BSD 3
Used by 1
46Health
SDK Composer

Authorize.Net PHP SDK

Official PHP SDK for the Authorize.Net payment gateway API.

456
Other
Used by 1
43Health
Library Composer

laravel-model-flags

Add lightweight, queryable boolean flags to Eloquent models without adding a migration column for every piece of state you need to track.

456
MIT
Used by 1
65Health
Library npm

react-responsive-masonry

A lightweight React masonry grid built with pure CSS flexbox — no JS layout engine, no image preloading, no dependencies beyond prop-types.

455
MIT
Used by 1
44Health
Library npm

Redux First History

Makes Redux the single source of truth for navigation state, syncing react-router, @reach/router, and wouter through one dispatch-driven history.

455
MIT
Used by 1
49Health
Library PyPI

whois

A Python library for querying and parsing WHOIS domain registration data across 100+ TLDs without a third-party API.

454
MIT
Used by 1
67Health
Library Cargo

zstd-rs

A pure-Rust, no_std-compatible implementation of the Zstandard compression format, with a complete streaming decoder and a growing compressor.

454
MIT
Used by 1
45Health
Library PyPI

Flask-Babel

Adds internationalization (i18n) and localization (l10n) support to Flask applications, built on Babel and pytz.

453
BSD 3
Used by 1
51Health
Library Composer

Webklex PHP-IMAP

A pure-PHP IMAP and POP3 client for reading mailboxes, messages, and attachments without the native ext-imap extension.

453
MIT
Used by 1
41Health
Library npm

react-debounce-input

A drop-in React input and textarea wrapper that debounces onChange to cut down on excessive re-renders and handler calls.

450
MIT
Used by 1
42Health
Library npm

react-barcode

A lightweight React component that renders barcodes via SVG, canvas, or image using JsBarcode.

449
Other
Used by 1
66Health
SDK PyPI

aliyun-odps-python-sdk

The official Python SDK for Alibaba Cloud MaxCompute (ODPS), with a pandas-like DataFrame API and Jupyter integration.

448
Apache 2.0
Used by 1
68Health
SDK Cargo

k8s-openapi

Rust type definitions for the Kubernetes client API, auto-generated from the OpenAPI spec with upstream bug fixes and multi-version support.

447
Apache 2.0
Used by 1
49Health
Library Cargo

procfs

A safe, idiomatic Rust interface for reading and parsing the Linux /proc pseudo-filesystem.

447
Apache 2.0
Used by 1
43Health
Library Composer

Yii2 Nested Sets

A nested sets behavior for Yii 2 ActiveRecord using the Modified Preorder Tree Traversal algorithm.

445
BSD 3
Used by 1
57Health
SDK npm

NATS Node Transport

The official Node.js and Bun TCP transport that connects the NATS.js client to a NATS server.

442
Apache 2.0
Used by 1
67Health
Library Cargo

kvm-bindings

Rust FFI bindings to the Linux KVM API, auto-generated with bindgen for x86_64, arm64, and riscv64

441
Apache 2.0
Used by 1
39Health
Library PyPI

sklearn-crfsuite

A scikit-learn compatible wrapper for CRFsuite that brings familiar fit/predict sequence labeling to Python.

440
MIT
Used by 1

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