string representations of objects in node and the browser

resolve like require.resolve() on behalf of files asynchronously and synchronously

A library to create readable "multipart/form-data" streams. Can be used to submit forms and file uploads to other web applications.

Express style path to RegExp utility

BDD/TDD assertion library for node.js and the browser. Test framework agnostic.

Terminal string styling done right

A querystring parser that supports nesting and arrays, with a depth limit

Store information about any JS value in a side channel, using a linked list

ES Math-related intrinsics and helpers, robustly cached.

small commonmark compliant markdown parser with positional info and concrete tokens

An ESnext spec-compliant `Array.prototype.findLastIndex` shim/polyfill/replacement that works as far down as ES3.

A utility-first CSS framework for rapidly building custom user interfaces.

Store information about any JS value in a side channel. Uses WeakMap if available.

Pure random number generator written in TypeScript

Terminal task list reborn! Create beautiful CLI interfaces via easy and logical to implement task lists that feel alive and interactive.

An ES2019 spec-compliant `Array.prototype.flatMap` shim/polyfill/replacement that works as far down as ES3.

A Lucide icon library package for React applications.

The CommonMark markdown constructs

Simple key-value storage with support for multiple backends

Helper functions for V8 coverage files.