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.
Flume
A safe, blazingly fast multi-producer, multi-consumer channel for Rust
error-stack-parser
Cross-browser JavaScript library that parses Error objects into structured stack frames with function names, file paths, and line/column numbers.
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.
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.
func_timeout
Run any existing Python function with a hard timeout, plus stoppable-thread support
stacktrace-gps
Resolves a partial stack frame into a precise one using source maps and function-name inference.
parking
A minimal Rust crate for thread parking and unparking that avoids the shared-token deadlock risk of std::thread::park.
stackframe
A tiny JS object representation of a single stack trace frame, powering stacktrace.js.
lockable
Thread-safe HashMap, LRU cache, and lock-pool types where individual keys can be locked and unlocked.