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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PapaParse
The fastest in-browser CSV parser for JavaScript, with streaming, Web Workers, and zero dependencies
Puppeteer
Node.js library for automating Chrome and Firefox over the DevTools Protocol and WebDriver BiDi
rayon
Simple, guaranteed data-race-free work-stealing parallelism for Rust — turn sequential iterators parallel by changing one call.
p-queue
Promise queue with concurrency control, interval-based rate limiting, and priority scheduling for async tasks.
parking_lot
A faster, smaller drop-in replacement for Rust's standard library Mutex, RwLock, Condvar, and Once.
conf
Simple, schema-validated config file persistence for Node.js apps and CLI tools
json-2-csv
Converts arrays of JSON documents to RFC 4180 compliant CSV and back, with native support for nested sub-documents.
Flume
A safe, blazingly fast multi-producer, multi-consumer channel for Rust
update-notifier
Notify CLI users of new npm package versions without slowing down startup
react-papaparse
React hooks and components wrapping PapaParse for fast in-browser CSV parsing
thread_local
Per-object thread-local storage for Rust, beyond the standard library's static thread_local! macro.
threads.js
A uniform spawn()/expose() API for offloading work to worker threads and web workers across Node.js, browsers, and Electron.
is
TypeScript-first runtime type checking with type guards, assertions, and generic-aware inference for over 100 JavaScript and TypeScript value types.
Yappi
A fast tracing Python profiler that is multithreading, asyncio, and gevent aware.
Shuttle
A Rust library for testing concurrent code by controlling and randomizing thread scheduling to reliably surface race conditions.