CLI

Detect whether a terminal supports color

Terminal string styling done right

ANSI escape codes for styling strings in the terminal

Check if argv has a specific flag

Regular expression for matching ANSI escape codes

the complete solution for node.js command-line programs

Get the visual width of a string - the number of columns required to display it

the mighty option parser used by yargs

yargs the modern, pirate-themed, successor to optimist.

Wordwrap a string with ANSI escape codes

easily create complex multi-column command-line-interfaces

CLI arguments parser. Native port of python's argparse.

The tiniest and the fastest library for terminal output formatting with ANSI colors

Get your PATH prepended with locally installed binaries

option parsing and help generation

ANSI escape codes for manipulating the terminal

Slice a string with ANSI escape codes

Unicode symbols with fallbacks for older terminals

Easily add ANSI colors to your text and symbols in the terminal. A faster drop-in replacement for chalk, kleur and turbocolor (without the dependencies and rendering bugs).

Gracefully restore the CLI cursor on exit

Toggle the CLI cursor

Colored symbols for various log levels. Example: `✔︎ Success`

A collection of common interactive command line user interfaces.

Let a globally installed package use a locally installed version of itself if available

Unopinionated, no-frills CLI argument parser

Get stdout window width, with two fallbacks, tty and then a default.

A light, featureful and explicit option parsing library.

Lightweight, beautiful and user-friendly prompts

The fastest Node.js library for formatting terminal text with ANSI colors~!

Flexible ascii progress bar

Extremely fast HTTP Archive (HAR) validator using JSON Schema

atob for Node.JS and Linux / Mac / Windows CLI (it's a one-liner)

Detect if your terminal emulator supports hyperlinks

Delightful JavaScript Testing.

JavaScript parser, mangler/compressor and beautifier toolkit

CLI app helper

Create boxes in the terminal

Parse yes/no like values

CLI tool to update caniuse-lite to refresh target browsers from Browserslist config

Elegant terminal spinner

Get the visual width of the widest line in a string - the number of columns required to display it

Stylish, intuitive and user-friendly prompt system. Fast and lightweight enough for small projects, powerful and extensible enough for the most advanced use cases.

Boxes for use in the terminal

Truncate a string to a specific width in the terminal

Spinners for use in the terminal

align-text with ANSI support for CLIs

Log by overwriting the previous output in the terminal. Useful for rendering progress bars, animations, etc.

Check if your package was installed globally

filesystem utilities for the npm cli

Highly configurable, well-tested, JavaScript-based HTML minifier.