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.
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.
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.
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.
@connectrpc/validate
A Connect interceptor that validates RPC requests and responses using Protobuf constraints and CEL expressions.
spacy-loggers
Training-run loggers for spaCy: Weights & Biases, MLflow, ClearML, PyTorch, CuPy
quickjs-rs
Sandboxed JavaScript and TypeScript execution for Python, running QuickJS inside a WebAssembly sandbox.
@tinyhttp/logger
Minimal and flexible HTTP request logger middleware for tinyhttp and Node.js.
node-client-sdk
LaunchDarkly's client-side feature-flag SDK for single-user Node.js apps, now superseded by the scoped @launchdarkly/node-client-sdk package.
@datadog/native-metrics
A native Node.js addon that collects CPU, V8 heap, garbage-collection, and event-loop metrics directly from libuv and V8 internals.
django-signal-webhooks
Fire webhooks automatically from Django model signals - create, update, delete, and M2M changes - with per-model admin configuration and async delivery.
