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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configcat-js
Official JavaScript SDK for evaluating ConfigCat feature flags and remote config values directly in the browser.
fastar
High-performance Python tar archives powered by Rust
altcha
Create and verify ALTCHA proof-of-work CAPTCHA challenges in Python with a zero-dependency, fully typed library.
weakmap-polyfill
A lightweight, spec-compliant ES6 WeakMap polyfill for browsers and JS engines without native support.
matplotlib-inline
Inline Matplotlib backend that renders figures directly inside Jupyter and IPython notebook cells.
Microsoft Kiota Abstractions
Core request, serialization, and auth abstractions that every Kiota-generated Python API client depends on to build and run.
simple-xml-to-json
A tiny, dependency-free library that transpiles XML into JSON through an AST.
keyed_priority_queue
Rust priority queue with change-priority and remove-by-key support
smtp-proto
A fast, zero-copy SMTP/LMTP protocol parser for Rust covering every registered service extension.
abxpkg
Modern, strongly-typed Python library and CLI for detecting, installing, and managing system binaries across apt, brew, pip, npm, cargo, and more.
loro-py
Python bindings for the Loro CRDT engine for local-first, collaborative data.
Texting Robots
A Rust-native robots.txt parser, battle-tested against tens of millions of real-world sites.
@acemir/cssom
A pure-JavaScript CSS parser and CSS Object Model implementation.
elastic-transport-python
The shared HTTP transport layer powering Elastic's Python client libraries
estree-util-build-jsx
Converts JSX embedded in an ESTree syntax tree into React.createElement or automatic jsx-runtime calls.
git-url-parse
A Rust parser for the URLs used by git, extracting components and host provider details.
tree-sitter-svelte-ng
An incremental Tree-sitter grammar for Svelte component syntax.
EVP_BytesToKey
Reimplements OpenSSL's legacy EVP_BytesToKey key-derivation algorithm in pure JavaScript for compatibility with older OpenSSL-encrypted data.
python-mimeparse
Basic functions for parsing and content-negotiating Internet media types in Python.
tag-expressions
A small boolean-expression parser and evaluator for selecting Gherkin scenarios by tag, used by behave and other Cucumber-family test runners.
string.prototype.matchall
Spec-compliant ES2020 polyfill for String.prototype.matchAll.
firebolt-sdk
A Python DB-API 2.0 client for the Firebolt cloud data warehouse.
sanic-routing
The AST-compiled node-tree router that powers Sanic's path and signal routing.
accept-language
A tiny, dependency-free Rust library for parsing the HTTP Accept-Language header.
