Markdown-ish syntax for generating flowcharts, mindmaps, sequence diagrams, class diagrams, gantt charts, git graphs and more.

Custom error types and error factory functions

Replace port numbers with stable, named .localhost URLs. For humans and agents.

Replace port numbers with stable, named .localhost URLs. For humans and agents.

Storybook for React and Vite: Develop, document, and test UI components in isolation

Generates Cucumber HTML reports in three different themes

Expo/React Native module with the developer menu.

Gatsby command-line interface for creating new sites and running Gatsby commands

List, fuzzy search and run scripts from any type of project

Parse, validate, manipulate, and display dates

Pseudo-random number generators w/ unified API, distributions, weighted choices, ID generation

ES6 iterator based read/write bit streams with support for variable word widths

A tool to open and run web extensions

A standalone speech rule engine for XML structures, based on the original engine from ChromeVox.

This package contains tools necessary to debug and develop Lexical.

[](https://stoplight.io/api-governance?utm_source=github&utm_medium=spectral&utm_campaign=readme) [![CircleCI](https://img.shields.io/circleci/build/github/stopl

Format and manipulate numbers.

Math.js is an extensive math library for JavaScript and Node.js. It features a flexible expression parser with support for symbolic computation, comes with a large set of built-in functions and constants, and offers an integrated solution to work with dif

Expo Development Client

A command line tool to help build, run, and test web extensions