Good Night is a free Chrome extension developed by Vojtěch Smejkal in the category of Browsers, specifically under Add-ons & Tools. This program aims to assist users in maintaining a healthy bedtime routine by turning web pages to grayscale after 10 pm. By utilizing this extension, individuals struggling to disconnect from their screens and go to bed on time can be gently reminded to do so.

The main feature of Good Night is its ability to automatically switch all web pages to grayscale mode once the set time, typically 10 pm, is reached. Users have the flexibility to adjust this time according to their preferences in the extension's settings, providing a customizable experience for bedtime reminders.