Encoding and decoding for base64, base32, base16, and friends

TypeScript definitions for busboy

Logfmt transport for pino

JSON.stringify for humans

Create and modify PDF files with JavaScript

Pretender is a mock server library for XMLHttpRequest and Fetch, that comes with an express/sinatra style syntax for defining routes and their handlers.

A tool for walking ASTs

Mock 'http' objects for testing Express, Next.js and Koa routing functions

A functional typescript implementation of the PCG family random number generators

read and write binary structures and data types

Maintainable code for interactive Slack messages, modals, home tabs, and workflow steps. A must-have for the Slack Block Kit framework.

Library to parse Scala programs

coffee loader module for webpack

Converts Zod 3 schemas to Json Schemas

Straightforward classes for node.js or web browsers

A robust, ES3 compatible, "has own property" predicate.

Node.js SDK for Authorize.net paymenet gateway.

parse coordinates in sexagesimal form

Get the byteLength out of a DataView, robustly.

Get the byteOffset out of a DataView, robustly.