JSPM

Universal module importer for Node.js

A tiny (952b), correct, general-purpose, and configurable "exports" and "imports" resolver without file-system reliance

TypeScript Execute (tsx): Node.js enhanced with esbuild to run TypeScript & ESM files

mdast extension to parse and serialize MDX.js ESM (import/exports)

Resolve things like Node.js — ponyfill for `import.meta.resolve`

A tiny, zero-dependency yet spec-compliant asynchronous iterator polyfill/ponyfill for ReadableStreams.

A function to recursively extract files and their object paths within a value, replacing them with null in a deep clone without mutating the original value. FileList instances are treated as File instance arrays. Files are typically File and Blob instance

micromark extension to support MDX.js

A fork of `import-meta-resolve` with commonjs + ESM support at the same time, AKA dual package.

mdast extension to parse and serialize MDX (or MDX.js)

Import a module like with require() but from a given path (for ESM)

Fast and easy parser for declarations of import and export in ECMAScript/TypeScript

A blazing fast ES module imports parser.

Tiny local JSON database for Node, Electron and the browser

Dynamic Module Loader

A terminating Apollo Link for Apollo Client that fetches a GraphQL multipart request if the GraphQL variables contain files (by default FileList, File, or Blob instances), or else fetches a regular GraphQL POST or GET request (depending on the config and

Determines whether a Node file is a Module (`import`) or a Script (`require`)

Comprehensive TypeScript/JavaScript utility library with cross-environment support (Node.js, browser, web worker) providing helper functions, polyfills (ES5-ES2023), type checking utilities, and optimized implementations for better minification and code r

get the file directory from import.meta.url

Middleware and a scalar Upload to add support for GraphQL multipart requests (file uploads via queries and mutations) to various Node.js GraphQL servers.

[Node.js](https://nodejs.org) + [Gjs](https://gjs.guide/) + [Deno](https://deno.land/) module that returns the current script dirname and filename. Similar to `__dirname` and `__filename` but also works in CommonJs and ES modules.

CLI tool for Size Limit

The most popular library of interactive components built with Tailwind CSS

Mouse wheel normalization across multiple multiple browsers.

Keyboard Controller

Modern TypeScript JSON diff library - Zero dependencies, high performance, ESM + CommonJS support. Calculate and apply differences between JSON objects with advanced features like key-based array diffing, JSONPath support, and atomic changesets.

TypeScript HYbridizer - Hybrid (CommonJS/ESM) TypeScript node package builder

Load a esm or cjs config from the file system

Fork of graphql-upload@8 that works with graphql@15 for compatibility with apollo-server@2

Standard dynamic imports with a few extra features

Does the current environment have `import()` support?

mime-types rewrite in TypeScript with ESM and CommonJS targets

vary rewrite in TypeScript with ESM and CommonJS targets

Super-fast on-the-fly transpilation of modern JS, TypeScript and JSX using esbuild

SQLite Wasm conveniently wrapped as an ES Module.

A comprehensive JavaScript/TypeScript library designed for both Node.JS and browsers, facilitating seamless interaction with the Atlassian Jira API.

Load a string as if it was an esm or commonjs module with a given filename.

Simple tools for creating interoperable CJS & ESM packages.

A fake template literal tag to trick syntax highlighters, linters and formatters into action.

es-escape-html rewrite for ESM

vary rewrite in TypeScript and ESM

Data about countries - like their ISO codes and currencies

Zero-config rollup bundler

Find and load configuration from a package.json property, rc file, or CommonJS module.

Isomorphic `require.resolve` for ESM and CommonJS.

Typescript minimalistic and developer friendly middleware and an Upload scalar to add support for GraphQL multipart requests (file uploads via queries and mutations) to various Node.js GraphQL servers.

OpenAPI 3 and 3.1 schema generator and validator for Hono, itty-router and more!

A simple, lightweight API for handling cookies in the browser

TypeScript Module Loader

provides native ESM import and globals mocking for unit tests

A promise based node resolution library based on enhanced-resolve.

Node.js loader for import specifiers as file paths without extensions or as directory paths

Make tsc-compiled `es2020/esnext` bundles compatible with esm/mjs requirements

walk directory for esm and cjs modules

Minimalistic and developer friendly middleware and an Upload scalar to add support for GraphQL multipart requests (file uploads via queries and mutations) to various Node.js GraphQL servers.

A Typescript-First utility library inspired by Lodash. Optimized for modern browsers.

Dual ESM/CommonJS wrapper around lodash

Get accessibility information about colour combinations

Convert packages to ESM.

Make configurable canvas easily with Canvafy

ESM and TypeScript rewrite of Google's diff-match-patch

import like require but async

A simple module to convert PDF files into image buffers (without filesystem usage)

ES module for the Google Analytics Global Site Tag.

A commonjs to esm converter.

A commonjs to esm converter for esbuild.

Easy hot module reloading (HMR) for Node.js and ESM

ESM compatible deepcopy

Babel plugin to rewrite import.meta for bundled usage

Add .js extension to each relative ESM import and export statement in JavaScript file

The ESM-powered frontend build tool. Fast, lightweight, unbundled.

The Skypack SDK.

< 1 kB GraphQL query minifier

Auto fix import path for esm compatibility.

> Currently an alpha-quality, best-effort implementation. > May be unnecessary if you use TypeScript's `"module": "NodeNext", "moduleResolution": "NodeNext"`

PATTERN_KEY_COMPARE implementation

A Babel plugin transform to convert CommonJS to ES modules

resolve "imports" in package.json

MailerLite Node.js SDK

A tiny `esm` snippets interop lib

Dynamic imports for all

🐊Putout plugin adds ability to convert commonjs to ecma script module

Hierarchical node.js configuration with files, environment variables, command-line arguments, and atomic object merging.

Run ES Module syntax in any browser – even IE!

A collection of strictest typescript configurations for various environments

🐊Putout plugin adds ability to convert ecma script module to commonjs

Infinite nested material menus

A collection of really strict eslint configurations for various environments

A TypeScript API and CLI for the Akamai NetStorage REST interface

An alternative to module-alias, but for esm

Searches for and loads your tool's JavaScript configuration files with full support for CJS, ESM, TypeScript and more.

Storybook builder powered by `@web/dev-server`

Synchronously import dynamic ECMAScript Modules similar to CommonJS require. Basic wrapper around esm for compatibility with both ESM and CJS projects in NodeJS.

Properly handle CJS imports in ESM.

Babel plugin for stubbing (ES6, ES2015) module exports

Blazing-fast, zero-dependency uploader for CloudKu. Supports auto-conversion, chunked uploads, and TypeScript. Easily upload images, videos, audio, and documents via Node.js.

Professional PostgreSQL client NodeJS

XYLabs Logger Library

Base functionality used throughout XY Labs TypeScript/JavaScript libraries

Base functionality used throughout XY Labs TypeScript/JavaScript libraries

Promises with the resolve and reject functions exposed

Base functionality used throughout XY Labs TypeScript/JavaScript libraries

ES2015 to CommonJS import/export transformer

Transforms a project that uses CommonJS to ES Modules.

OpenAPI schema generator and validator for Cloudflare Workers

🐊Putout plugin improves code related to generators

Base functionality used throughout XY Labs TypeScript/JavaScript libraries

A utility library for creating Node loader hooks

parse and handle import/export for browserify

Base functionality used throughout XY Labs TypeScript/JavaScript libraries

ESLint plugin that ensures non-index filenames match to at least one named export.

Base functionality used throughout XY Labs TypeScript/JavaScript libraries

Fetch the current file and directory path, no matter your environment (Deno, Node.js, Web Browsers, ESM, CJS)

🚀 lightweight TypeScript abstract logger • level based filtering and optional tagging • supports both ESM & CJS

Base functionality used throughout XY Labs TypeScript/JavaScript libraries

🐊Putout plugin helps with labels

Base functionality used throughout XY Labs TypeScript/JavaScript libraries

Easy __dirname and __filename alternatives for ES Modules

Base functionality used throughout XY Labs TypeScript/JavaScript libraries

A CLI and equivalent JS API to find unused ECMAScript module exports in a project.

Base functionality used throughout XY Labs TypeScript/JavaScript libraries

A simple tool that add package.json({"type":"commonjs"/"module"}) to TypeScript outDir for dual package.

Calculates unsigned CRC32. Optimized Cycle Redundancy Check.

Base functionality used throughout XY Labs TypeScript/JavaScript libraries

Generates a random phone number following the E.164 international standard

Dev server plugin for using storybook with es modules.

A modern, fast, RFC 4180 compliant parser for JS

Base functionality used throughout XY Labs TypeScript/JavaScript libraries

Utilities for resolving and mapping files.

Storybook framework for `@web/storybook-builder` + Web Components

Base functionality used throughout XY Labs TypeScript/JavaScript libraries

A collection of node modules re-exported as ES Modules

Node.js loader for import specifiers as file paths without extensions or as directory paths

Base functionality used throughout XY Labs TypeScript/JavaScript libraries

🐷 Poku makes testing easy for Node.js, Bun, Deno, and you at the same time.

Types, utilities and base class for custom loaders.

A utility library for promises, support both esm and commonjs

Loader that transpiles typescript modules using esbuild.

Base functionality used throughout XY Labs TypeScript/JavaScript libraries

🐊Putout plugin improves ability to transform ESM code

Official Ipregistry Javascript Library.

ESLint plugin that enforces imports to follow native ESM resolution

vite for qiankun

A tool that can transform CommonJS to ESM

Base functionality used throughout XY Labs TypeScript/JavaScript libraries

Build ES module to CommonJs module for Node.js/Electron

Node.js tool for updating your ES module and CommonJS specifiers.

LINQ ported to TypeScript

A Babel plugin that converts AMD modules to ES modules

Chainable ESModule Loader for Typescript

Applies the TypeScript compiler during Vite transform build phase.

Modern middleware with promises and status

A quick and light esm / node module to look up state city or zips to get either.

TypeScript dual packages.

Bridge the gap between ES modules and CommonJS modules with an easy-to-use alternative to `tsc`.

A TypeScript library for handling WOFF2 encoding using WebAssembly

Chainable ESModule Loader for CSS and Preprocessors

A cross-platform, partial implementation shim of Node Buffer.

Gold-standard build tool for TypeScript libraries

Build Tool for Browser and Node Applications

A webpack plugin that changes the output to be an ESM library

ES module distribution for Stdlib, a standard library for JavaScript and Node.js.

An implementation of the Node.js module resolution algorithm.

Shim for `import.meta.resolve`

Zero dependencies Query Builder for Cloudflare Workers

README.md

Wdio Service to inject result of automatic test run in Azure DevOps TestPlan

Azure DevOps Test Reporter to inject result of automatic test run in Azure DevOps TestPlan

Detect the module type of a running Node.js file.

You can import prismjs/components without considering language dependencies.

Alpaca Headless

Handy dayjs(2KB immutable date library alternative to Moment.js) filters and directives for Vue.js

A cross-browser ponyfill or polyfill for showOpenFilePicker

Alpaca Headless

A customizable and accessible select component with search functionality built with Lit

Error handling for Gulp plugins with ESM support

Vue imge placeholder directive for broken images.

ESM loader to transform imports using ESBuild

Base functionality used throughout XY Labs TypeScript/JavaScript libraries

ESM/CJS module that easily converts JSON to CSV. This package supports streaming and buffered conversion to CSV.

A tiny (25 bytes) Promise wrapper around setTimeout

Base functionality used throughout XY Labs TypeScript/JavaScript libraries

Fancy colorful console debugger with custom scope written in tiny TypeScript, ES module.

Gulp plugin for stylelint with ES module support.

Modular testing for JavaScript

Base functionality used throughout XY Labs TypeScript/JavaScript libraries

libSQL Wasm packaged as an ES module.

Add an extension to import specifiers that do not already have one, replace the extensions of those that do, or even rewrite specifiers entirely

A lightweight, security-first logging utility with automatic data redaction for Node.js applications - the first logging library with built-in PII protection.

The vlt CLI

A GraphQL client for React using modern context and hooks APIs that’s lightweight (< 4 kB) but powerful; the first Relay and Apollo alternative with server side rendering.

A ES6 class for node-canvas with built-in functions and chained methods.

Fancy colorful console debugger with custom scope written in tiny TypeScript, ES module.

An [`element-vir`](https://npmjs.com/package/element-vir) drop-in element for building, testing, and demonstrating a collection of elements (or, in other words, a design system).

A serverless plugin that will fix the problem of AWS-Layers not working with ES Modules (ESM .mjs)

Tool to convert Commonjs files into ESM

Lightweight, Material Design inspired button for scroll-to-top of the page. No dependencies. Pure Angular!

Gulp plugin for Rollup JavaScript Module Bundler

Transform global variables in JavaScript

Paydock client sdk

Babel plugin to rewrite bare imports for browser use.

[](https://www.npmjs.com/package/@2bad/tsfix) [](https://www.npmjs.com/package/@2bad/tsfix) [![GitHub Build Status](https://img.shields.io/github/a

Miscellaneous functions for working with Uint8Arrays

Convert HEX/HEXa/aHEX with alpha to RGBa and back

Publish project as dual ES modules and CommonJS package

Create a blank free and open Node.js ESM project

This module provides a way to detect the current platform where the script is running. It defines a constant `platformInfo` which holds the information about the current platform.

A Next.js App or page decorator, React context object, and React hook to access Node.js HTTP server context when rendering components.

A collection of utility classes, functions and decorators for javascript/typescript projects, for use in the browser.

Wrap the whole script in a function — export as CommonJS, ES Modules, IIFE, or a global variable

A modern 3D viewer framework built on top of three.js, written in TypeScript, designed to make creating high-quality, modular, and extensible 3D experiences on the web simple and enjoyable.

A babel plugin to fix the default import interoperability issue in Node.js

A lightweight Jest runner creator

A library to simplify the creation and manipulation of Node.js streams, providing utilities for handling transform, duplex, and readable/writable streams effectively in TypeScript.

Argon2 ESM for browser

String.prototype.includes() but using localeCompare.

Javascript implementation of WASI for Node.js and the Browser.

esbuild plugin for loading import maps from a Eik server and applying the mapping to ECMAScript modules in preparation for upload to the same server.

A fast and modern bundler for Node.js and TypeScript.

Base functionality used throughout XY Labs TypeScript/JavaScript libraries

A solution to import files on the module and commonjs at the same time

A simple CLI to run Node.js and report code coverage.

Rollup plugin for loading import maps from a Eik server and applying the mapping to ECMAScript modules in preparation for upload to the same server.

dual-publish plugin for Size Limit

Base64 encoding and decoding for both browser and node, with binary file support.

Zero-dependency templating library for modern JavaScript - HTML, CSS, SQL, Markdown and more

Fishbird is a simple, lightweight, and fast Promise utility library

ESLint plugin which enforces explicit .js extensions in local imports while leveraging import resolvers.

Typescript + ESM version of punycode.js

Asynchronously creates a disposable directory in the OS temporary directory that gets deleted after the callback is done or errors.

CommonJS version of lowdb 3.0.0. See https://github.com/mifi/commonify

This is an example TypeScript Package ready to be published on npm. It has been set up with automated tests and package publishing workflow using GitHub Actions CI/CD. It is made primarily for GitHub + VS Code (Windows / Mac / Linux) users who are about t

A webpack-like loader for Node

Verify that file or package, be it remote, or local, is a valid ECMAScript Module

Base functionality used throughout XY Labs TypeScript/JavaScript libraries

A code formatter for Lua (ESM/CJS fork)

Super-fast on-the-fly transpilation of modern JS, TypeScript and JSX using esbuild

Quickly attach multiple ESM Loaders and/or --require hooks together

A modern, free, lightweight npm package for translating react apps (component wrapper.) No API keys or language list files are required.

NPM Sentinel MCP - A powerful Model Context Protocol (MCP) server that revolutionizes NPM package analysis through AI. Built to integrate with Claude and Anthropic AI, it provides real-time intelligence on package security, dependencies, and performance.

Use vue/react to develop 'vscode extension webview', supporting esm/cjs

Renders nested React components with asynchronous cached loading; useful for GraphQL clients and server side rendering.

tiny and simple-to-use Javascript / TypeScript QR-Code generator library. Fully type-safe and esm module compatible

Chainable ESModule Loader for Images

Polyfills for ESM like __dirname, __filename, etc

Zero-dependency isomorphic routing library for modern JavaScript - Server and CLI routing

Example code for using using ts-node/esm

Execute a callback when the process exits, passing the exit code (ESM/CJS)

Modern conventional-changelog parser with ES modules and TypeScript support

Base functionality used throughout XY Labs TypeScript/JavaScript libraries