Open Source Packages
Libraries, frameworks, tools, and SDKs used by the apps in this directory — scored the same way as the apps themselves.
All Packages
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PapaParse
The fastest in-browser CSV parser for JavaScript, with streaming, Web Workers, and zero dependencies
boto3
The official AWS SDK for Python — call every Amazon Web Services API from your code.
OpenAI Python SDK
The official Python library for the OpenAI REST API, generated from OpenAI's OpenAPI spec with typed sync and async clients.
SWC
Rust-based JavaScript/TypeScript compiler, a drop-in super-fast alternative to Babel
Clap
The most widely used command-line argument parser for Rust, with both derive and builder APIs.
cryptography
The standard cryptographic library for Python, pairing safe high-level recipes with low-level primitives backed by Rust and OpenSSL.
markdown-it
A fast, pluggable CommonMark-compliant Markdown parser and renderer for JavaScript, safe by default.
Winston
A battle-tested Node.js logging library with pluggable transports, custom formats, and multiple log levels.
Click
A composable Python toolkit for building command line interfaces with minimal boilerplate.
urllib3
A powerful, user-friendly HTTP client for Python with thread-safe connection pooling, TLS verification, and retry handling.
python-dateutil
Powerful extensions to Python's datetime module for parsing, deltas, recurrence, and timezones.
rich
A Python library for rendering rich text, tables, progress bars, and syntax-highlighted code in the terminal.
Ruff
An extremely fast Python linter and code formatter, written in Rust, built as a drop-in replacement for Flake8, Black, isort, and dozens of plugins.
Cheerio
The fast, flexible library for parsing and manipulating HTML and XML with a familiar jQuery-style API.
Jinja
A fast, expressive, and extensible templating engine for Python.
PyJWT
A Python implementation of RFC 7519 for encoding, decoding, and verifying JSON Web Tokens.
file-type
Detect the file type of a buffer, stream, or file by reading its magic number.
SQLAlchemy
The Python SQL toolkit and Object Relational Mapper that gives developers the full power and flexibility of SQL.
yargs
The modern, pirate-themed command-line argument parser and command framework for Node.js
sanitize-html
Allowlist-based HTML sanitizer that strips XSS vectors from untrusted markup while preserving the tags and attributes you choose to keep.
psycopg2
The most popular PostgreSQL database adapter for Python, implementing the full DB API 2.0 specification.
buffer
The Node.js Buffer API, reimplemented for the browser on top of Uint8Array.
psutil
Cross-platform Python library for retrieving process and system utilization data.
BullMQ
Fast, reliable Redis-based message queue and background job processing for Node.js and TypeScript.
