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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prettier
An opinionated code formatter that enforces consistent style across every language your project speaks.
dotenv
Loads environment variables from a .env file into process.env for Node.js apps.
Axios
Promise-based HTTP client for the browser and Node.js with interceptors, automatic transforms, and cancellation
tsx
A drop-in replacement for the node CLI that runs TypeScript and ESM files instantly, powered by esbuild.
Next.js
The React framework for production: file-based routing, server rendering, and Rust-powered builds.
jest
Delightful JavaScript testing with zero-config setup, snapshots, mocking, and coverage
ts-node
TypeScript execution engine and REPL for Node.js that runs .ts files directly, without a separate compile step.
ws
A simple, blazing-fast, thoroughly tested WebSocket client and server library for Node.js.
serde_json
The de facto standard JSON library for Rust, built on the Serde serialization framework
Requests
The elegant, human-friendly HTTP library that made Python's most-used API for talking to the web.
Sentry JavaScript (@sentry/browser)
The official Sentry SDK for capturing errors, performance traces, and session replays in browser JavaScript apps.
Pydantic
Data validation and settings management using Python type hints, backed by a Rust core.
pytest
The Python testing framework that makes writing small tests easy and scales to complex functional test suites.
HTTPX
A next-generation HTTP client for Python with sync, async, and HTTP/2 support
fs-extra
Drop-in replacement for Node's fs module adding copy, remove, mkdirs, and JSON helpers with native promise support.
Uvicorn
A lightning-fast ASGI server for Python, built on uvloop and httptools.
NumPy
The fundamental N-dimensional array library powering Python's scientific computing stack.
PyYAML
A full-featured YAML parser and emitter for Python, with C-accelerated bindings
FastAPI
A modern, high-performance Python web framework for building APIs with automatic validation, serialization, and interactive docs.
python-dotenv
Load environment variables from a .env file into Python's os.environ, the standard way to keep 12-factor config out of your code
diff
A battle-tested JavaScript library for computing and applying text diffs at the character, word, line, sentence, CSS, or JSON level.
Pino
A super fast, low-overhead JSON logger for Node.js applications.
jose
Zero-dependency JWT, JWS, JWE, and JWK toolkit for Node.js, browsers, and edge runtimes.
pandas
The Python DataFrame library for fast, flexible, and expressive data analysis and manipulation.
