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screenlog.js npm version

Bring console.log, on the screen

Ever faced a situation where you said "Why doesn't this bug show up when developer console is open!!"? And since the bug doesn't show when you have console open, you cannot do debug logging using console.log.

Enter screenlog.js. screenlog.js brings the developer console right on your screen so that you can do logging without having the developer console open always.



Do npm install screenlog or bower install screenlog or download the project.

Drop dist/screenlog.min.js into your web application and initialize it with:


And you are done! By default, every next console.log (or info, warn and error) in your app now starts logging on the screen as well as the console. Or you can use screenLog.log() instead to just log on the screen.

Public API


Initializes the screen logger. It creates a customizable panel on the screen.

  • options - A map of additional options.
  • logColor - Text color. Default is lightgreen.
  • fontSize - Font size of logs. Default is 1em(Your browser's default).
  • bgColor - Background color of the log panel. Default is black.
  • releaseConsole - By default console.log is overridden to log on screen. You can avoid this behaviour by setting releaseConsole to true and instead use screenLog.log() API. Default is false.

screenLog.[log, warn, error, info](obj1 [, obj2, ..., objN])

Logs a message on the screen. Eg.'Info here').

  • obj1 ... objN - A list of JavaScript objects or strings to output. Just like console.log.


Clears messages on the screen.


Removes the logger from the UI and reverts to original console functionality.

Browser Support

screenlog.js works best on latest versions of Google Chrome, Firefox and Safari.


Interested in contributing features and fixes?

Read more on contributing.


See the Changelog


Copyright (c) 2015-2021 Kushagra Gour, Licensed under the MIT license.