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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confluent-kafka-python
High-performance Python client for Apache Kafka, built on librdkafka with Producer, Consumer, AdminClient, and Schema Registry support.
rcgen
A pure-Rust library for generating X.509 certificates, CSRs, and CRLs, including self-signed certs in a few lines of code.
multidict
A fast dict-like multi-value mapping for HTTP headers and URL query strings, with a C-accelerated backend and a pure-Python fallback.
@fastify/websocket
Adds first-class WebSocket route support to Fastify, dispatching every upgrade through Fastify's own hooks and router instead of bolting ws on beside it.
d3-array
Array manipulation, ordering, searching, and statistical summarization for JavaScript, built to power D3's data-visualization pipeline.
python-oracledb
Oracle's official Python driver for connecting directly to Oracle Database with no client libraries required
Pinecone Python SDK
Official Python SDK for the Pinecone vector database
node-oauth2-server
Framework-agnostic, RFC 6749/6750-compliant OAuth 2.0 server module for Node.js with native async/await and PKCE support.
tinyexec
A tiny, higher-level interface around Node's child_process for running commands without the boilerplate.
ci-info
Zero-dependency detection of the current CI environment, vendor, and pull-request status in Node.js.
Rubato
Asynchronous and synchronous audio sample-rate conversion for Rust
crc32fast
Fast, SIMD-accelerated CRC32 (IEEE) checksum computation for Rust
tree-sitter-c-sharp
C# grammar for tree-sitter, based on the Roslyn language grammar
tailwind-scrollbar-hide
A tiny, zero-dependency Tailwind CSS plugin that hides scrollbars visually while keeping content scrollable.
chardet
Detects the character encoding of a buffer or file using statistical byte-occurrence analysis, with zero dependencies.
@esbuild-plugins/node-globals-polyfill
Polyfills Node.js globals like process and Buffer so Node-oriented code bundles cleanly for the browser with esbuild.
pinecone-ts-client
The official TypeScript/Node.js client for building and querying vector search applications on Pinecone.
email-addresses
A dependency-free RFC 5322 email address parser for JavaScript and Node.js.
qstash-js
Official TypeScript SDK for Upstash QStash, a serverless HTTP message queue with retries, scheduling, and durable workflows.
soupsieve
The pure-Python CSS4 selector engine that powers Beautiful Soup's select() and select_one() methods.
topojson-client
Convert TopoJSON topologies to GeoJSON, merge shapes, and build meshes for map rendering
postcss-selector-parser
A CSS selector parser and AST toolkit for building PostCSS plugins that inspect, transform, and rewrite selectors.
@amplitude/analytics-browser
The official Amplitude Web SDK for capturing product-analytics events, sessions, and web attribution in the browser.
aiosignal
A lightweight async callback registry that turns a mutable list of coroutine receivers into a frozen, awaitable dispatch signal.
