JavaScript packages

CodeMirror 6 markdown editor with Obsidian-style inline live preview.

NLCST types for TypeScript.

Chai assertions for Node.js filesystem

Apply a binary callback to elements in strided input arrays and assign results to elements in a strided output array.

Turn non-concurrent FantasyLand Applicatives concurrent

Isomorphic Cryptography Library for X25519 ECIES

A utility library for calculating luminance, contrast ratio, and appropriate contrast colors to ensure web accessibility.

A simple yet performant query builder for TypeScript. Built with Bun.

Indent each line in a string. This is a fork of sindresorhus/indent-string, but with CommonJS support.

Drag and Drop library to support react-trello project

create pdf report with header, footer and page number with puppeteer

An accessible, composable, and friendly React UI Kit

Yet another tiny async control flow library, implements parallelLimit, with the ability to share the concurrency-limited queue.

High Speed, eXtensible Template Engine lib on browser and nodejs

Shared utilities for pi packages

Creates manifest json file based you config

Efficient, configurable text chunking utility for LLM vectorization. Returns rich chunk metadata.

Hardhat plugin for using Web3 0.20.x

Calculate the variance of a strided array using a two-pass algorithm.

A beautiful, enhanced logger for Drizzle ORM that transforms your SQL queries into visually appealing, color-coded output with syntax highlighting, icons, and detailed formatting.

Command-line tools for working with Architecture Decision Records

OvenPlayer is Open-Source HTML5 Player. OvenPlayer supports WebRTC Signaling from OvenMediaEngine for Sub-Second Latency Streaming.

An implementation of Aurelia's loader interface to enable execution under node.

A CLI parser built with Zod.

Typing animations with React

Fast inline semaphores and mutexes

Fast, modern, in-memory key-value store for JavaScript. The perfect solution for caching in JavaScript.

The motion graphics toolbelt for the web

Open-source track changes (suggesting mode) extension for Tiptap

JSON Schema based editor

A jQuery plugin that provides great set of features like, Auto-close, Ajax-loading, background-dismiss, themes and more.

Shareable TypeScript configuration for the Sapphire Community

MIT-licensed asynchronous and non-blocking parser for mime encoded e-mail messages

Natively SDK for building native-like web applications

REST API requests to WordPress.com via XMLHttpRequest (and CORS).

Encode and decode rfc2231/rfc5987

Package for overloading some of the HardhatRuntimeEnvironment components

React hooks for building Solana apps

CLI and API to concatenate markdown files and modify as necessary.

Express middleware to serve `sitemap.xml` from a list of URLs

A super fast DOM helper lib

Easy and small template engine for the browser and nodejs.

stub rabbit mq in integration tests

webpack plugin that runs ng-annotate on your bundles

Node.js client for the Api2Pdf REST API with support for Chrome, wkhtmltopdf, LibreOffice, Markitdown, OpenDataLoader, PdfSharp, Zip, Zebra, and utility endpoints.

Lean test runner for Node.js

Movable plugin for BetterScroll

A plain REST API server exposing document-operations' conversion, editing, inspection, and .odb operations as JSON-over-HTTP endpoints — one POST route per operation, for a caller with no MCP client and no Node runtime of their own.

nvm + execa = nvexeca

Vitest environment for Prisma & PostgreSQL designed for fast integration tests: seed your database once with production-like data, then run each test in a transaction that is rolled back after execution. Tests remain isolated without expensive reseeding.