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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codemirror-lang-svelte
Svelte language support for CodeMirror 6, with a native Lezer grammar, nested JS/CSS parsing, indentation, and code folding.
scim-patch
TypeScript library that validates and applies RFC 7644 SCIM PATCH operations to user and group resources.
astra-db-ts
The official TypeScript client for DataStax Astra DB, giving typed access to vector search, JSON collections, and CQL-backed tables via the Data API.
LaunchDarkly Server-Side SDK for Node.js
LaunchDarkly's server-side Node.js SDK for evaluating feature flags and streaming config
epub2
A TypeScript fork of the classic epub library for parsing EPUB e-book metadata, chapters, and images in Node.js, with both callback and Promise-based APIs.
mdast-util-mdx
Mdast extensions that parse and serialize MDX syntax — ESM, JSX, and expressions — inside markdown syntax trees.
timers-browserify
A polyfill that brings Node's timers module, including its private enroll/active APIs and setImmediate, to browserify bundles.
node-chromium-pickle-js
A Node.js port of Chromium's Pickle class for packing and unpacking binary values into a single buffer.
argon2-cffi-bindings
Low-level CFFI bindings that compile the official Argon2 C library for direct use from Python.
vector-py
Python client for Upstash Vector's serverless REST API, supporting dense, sparse, and hybrid vector search.
tree-sitter-toml
A tree-sitter grammar for TOML configuration files
mdast-util-gfm-autolink-literal
mdast extension to parse and serialize GitHub-Flavored-Markdown autolink literals
Dub Analytics
Client-side JavaScript and React SDK for tracking clicks, leads, and sales conversions with Dub.
sns-payload-validator
Verifies AWS SNS message signatures for HTTP/S and Lambda payloads.
vfile-message
A tiny error-like message class for creating vfile lint warnings and errors even without a file instance.
micromark-extension-gfm-autolink-literal
micromark syntax extension for GitHub-Flavored-Markdown autolink literals
pyasn1-modules
A collection of pre-built ASN.1 data structures for X.509, CMS, PKCS, and other IETF protocols in Python
tree-sitter-kotlin-ng
Fast, incremental Kotlin grammar for the Tree-sitter parsing framework.
Capacitor Filesystem
A Node-like Filesystem API for reading, writing, and managing files across iOS, Android, and the web in Capacitor apps.
micromark-extension-gfm-table
micromark tokenizer extension for GFM table syntax
@as-integrations/express5
Apollo Server integration middleware for Express v5
@capacitor/haptics
Native haptic feedback for Capacitor apps — impact, notification, selection, and vibration APIs shared across iOS, Android, and the web.
langchain-perplexity
LangChain integration package for Perplexity AI, providing chat models, embeddings, retrievers, and tools.
Deno
Secure-by-default JavaScript and TypeScript runtime built in Rust on V8
