opn 4.0.2

A better node-open. Opens stuff like websites, files, executables. Cross-platform.

Homepage: https://github.com/sindresorhus/opn#readme

Platform: npm

Language: Shell

License: MIT

Keywords: app, open, opn, opener, opens, launch, start, xdg-open, xdg, default, cmd, browser, editor, executable, exe, url, urls, arguments, args, spawn, exec, child, process, website, file

Repository: git+https://github.com/sindresorhus/opn.git

View on registry: https://www.npmjs.com/package/opn

Direct download link: https://registry.npmjs.org/opn/-/opn-4.0.2.tgz

Install: npm install opn@4.0.2


A better node-open. Opens stuff like websites, files, executables. Cross-platform.


  • Actively maintained
  • Supports app arguments
  • Safer as it uses spawn instead of exec
  • Fixes most of the open node-open issues
  • Includes the latest xdg-open script for Linux


$ npm install --save opn


const opn = require('opn');

// opens the image in the default image viewer
opn('unicorn.png').then(() => {
    // image viewer closed

// opens the url in the default browser

// specify the app to open in
opn('http://sindresorhus.com', {app: 'firefox'});

// specify app arguments
opn('http://sindresorhus.com', {app: ['google chrome', '--incognito']});


Uses the command open on macOS, start on Windows and xdg-open on other platforms.

opn(target, [options])

Returns a promise for the spawned child process. You'd normally not need to use this for anything, but it can be useful if you'd like to attach custom event listeners or perform other operations directly on the spawned process.


Type: string

The thing you want to open. Can be a URL, file, or executable.

Opens in the default app for the file type. For example, URLs opens in your default browser.


Type: Object


Type: boolean
Default: true

Wait for the opened app to exit before calling the callback. If false it's called immediately when opening the app.

On Windows you have to explicitly specify an app for it to be able to wait.


Type: string Array

Specify the app to open the target with, or an array with the app and app arguments.

The app name is platform dependent. Don't hard code it in reusable modules. Eg. Chrome is google chrome on macOS, google-chrome on Linux and chrome on Windows.



MIT © Sindre Sorhus


  • 4.0.2 - May 17, 2016 09:29
  • 4.0.1 - March 03, 2016 07:23
  • 4.0.0 - January 16, 2016 20:45
  • 3.0.3 - November 04, 2015 13:37
  • 3.0.2 - June 29, 2015 19:08
  • 3.0.1 - June 29, 2015 18:24
  • 3.0.0 - June 29, 2015 18:10
  • 2.0.1 - June 20, 2015 17:29
  • 2.0.0 - June 13, 2015 00:22
  • 1.0.2 - April 22, 2015 08:47
See all 15 releases

Project Statistics

SourceRank 23
Dependencies 2
Dependent projects 1.28K
Dependent repositories 12.4K
Total releases 15
Latest release
First release
Stars 451
Forks 23
Watchers 14
Contributors 7
Repo Size: 40 KB

Top Contributors See all

Sindre Sorhus Thomas Watson Steen Arthur Verschaeve Eric Mandel Sam Verschueren Bogdan Chadkin paarthenon

Something wrong with this page? Make a suggestion

Export .ABOUT file for this library

Last synced: 2017-03-12 06:44:04 UTC

Login to resync this project