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
rayon
Simple, guaranteed data-race-free work-stealing parallelism for Rust — turn sequential iterators parallel by changing one call.
parking_lot
A faster, smaller drop-in replacement for Rust's standard library Mutex, RwLock, Condvar, and Once.
pyparsing
Build recursive-descent parsers in Python without a separate grammar file
Flume
A safe, blazingly fast multi-producer, multi-consumer channel for Rust
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.
zxcvbn-python
A Python port of Dropbox's zxcvbn - realistic password strength estimation with crack-time estimates and specific improvement feedback.
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.
srsly
Unified, cross-platform JSON, JSONL, MessagePack, Pickle, and YAML serialization for Python
wasabi
A lightweight, zero-dependency console printing and formatting toolkit for Python
Python Xlib
A pure-Python implementation of the X11 protocol for talking to an X server.
func_timeout
Run any existing Python function with a hard timeout, plus stoppable-thread support