Open Source Packages
Libraries, frameworks, tools, and SDKs used by the apps in this directory — scored the same way as the apps themselves.
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csv-parse
A flexible, dependency-free CSV parser for Node.js and the browser with stream, callback, and sync APIs.
Psycopg
The modern PostgreSQL adapter for Python, with native async and pipeline support
scikit-learn
Simple and efficient tools for machine learning and data analysis in Python.
axum
Ergonomic and modular HTTP routing and request-handling framework for Rust, built on Tokio, Hyper, and Tower.
pydantic-settings
Type-safe application settings management for Python, built on Pydantic models.
LiteLLM
Call 100+ LLM APIs from OpenAI to Anthropic to Bedrock through one unified, OpenAI-format Python interface.
Typer
Typer is a Python library for building CLI applications, using type hints to generate arguments, options, validation, help text, and shell completion automatically.
asyncpg
A fast PostgreSQL database client library for Python built directly on asyncio, implementing the PostgreSQL binary wire protocol natively for high-throughput async applications.
Alembic
Database migrations tool for SQLAlchemy with autogenerate and transactional DDL
once_cell
Single-assignment cells and lazy statics for Rust, without macros or unsafe code
sentry-sdk
The official Python SDK for Sentry error tracking, performance monitoring, and tracing.
serde_yaml
Strongly typed YAML serialization and deserialization for Rust, built on Serde
idna
Internationalized Domain Names for Python — IDNA 2008 and UTS #46 encoding and decoding
pypdf
A pure-Python library for splitting, merging, cropping, transforming, and extracting content from PDF files.
tenacity
A general-purpose Python retrying library that adds configurable retry behavior to almost anything
rustls
A modern, memory-safe TLS library for Rust with no unsafe code and no legacy crypto by default.
Tower
Modular, reusable Rust components for building async network clients and servers
Charset Normalizer
A pure-Python universal charset detector that turns text of unknown encoding into clean Unicode.
SciPy
Fundamental algorithms for scientific computing, optimization, and statistics in Python.
attrs
Python classes without boilerplate — generate init, repr, equality, and more from declarative field definitions.
sysinfo
Cross-platform Rust library for fetching system information — CPU, memory, disks, processes, and networks
time
Ergonomic, no-std-compatible date and time handling for Rust with parsing, formatting, and macro literals.
LangChain
The most widely adopted Python framework for building LLM-powered agents and applications
loguru
A drop-in replacement for Python's standard logging module that makes logging enjoyable, with almost no setup required.
