JavaScript packages

vfile utility to create a report for a file

Javascript function that triggers browser to save javascript-generated content to a file

Downgrade errors to warnings

Give your JS App some Backbone with Models, Views, Collections, and Events.

Allow parsing of the flow syntax

slice stream like buffer/string

Client for Contentful's Content Delivery API

Validate an email address according to RFCs 5321, 5322, and others

Vite & Vue powered static site generator

Base class for puppeteer-extra plugins.

Returns a list of strings representing the user's preferred languages.

Given a Mocha / Cypress spec file, returns the list of suite and test names

Fibonacci and exponential backoffs.

Strictly and safely type any EventEmitter-like interface on any object

Parse/stringify JSON and provide source-map for JSON-pointers to all nodes

Select context for coding agents directly from your website

YouTube IFrame Player API abstraction.

Dynamic ES module loader

Strip flow type annotations from your output code.

A fail-fast circuit breaker for promises and callbacks

WebSocket client for Sanity's Bifur real-time service, communicating over JSON-RPC 2.0 and returning RxJS Observables

eslint-config-prettier for create-vue

A JavaScript implementation of the JSON Object Signing and Encryption (JOSE) for current web browsers and node.js-based servers

An ESLint plugin that validates TypeScript doc comments

A simple function to check whether a mimetype matches the specified mimetype (with wildcard support)

Create, read and edit .zip files synchronously with Javascript

Batch processing in JS

Faster, node.js focused alternative to JavaScript's native array map.

Workflow SDK - Build durable, resilient, and observable workflows

A continuation-local storage module compatible with NestJS's dependency injection.

Self-host the JetBrains Mono font in a neatly bundled NPM package.

Library for plugin creation

AAC encoder extension for Mediabunny, based on libavcodec.

Hide targets from screen readers

Control Remotion features using the `npx remotion` command

Codebase intelligence for TypeScript and JavaScript. Free static analysis of code and styles, optional paid runtime intelligence (Fallow Runtime). Quality, risk, architecture, dependencies, duplication, and design-system drift for humans, CI, and the agen

Create a MD5 hash with hex encoding

Astro integration for Expressive Code, a modular syntax highlighting & annotation engine for presenting source code on the web. Offers full VS Code theme support, editor & terminal frames, copy to clipboard, text markers, collapsible sections, and more.

React component for rich text markdown editing

Create a `DataView` over an `ArrayBuffer`/8-bit typed array (commonly used in the browsers) or a `Buffer` (commonly used in Node.js).

Precondition checking utilities.

Type safe mocking extensions for vitest, forked from jest-mock-extended

The react wrapper for zag

React Native Mapview component for iOS + Android

Rehype plugin for Expressive Code, a modular syntax highlighting & annotation engine for presenting source code on the web. Offers full VS Code theme support, editor & terminal frames, copy to clipboard, text markers, collapsible sections, and more.

A Sass parser for PostCSS, using gonzales-pe.

A lightweight ESLint plugin for import/export linting

Toolbox to extract information from Vue component files for documentation generation purposes.

OAuth 1.0a Request Authorization for Node and Browser.

Lerna's internal child_process wrapper