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Free Dark Mode Extension — Trusted Since 2009

Dark Mode for Education Platforms

Homework and online courses often mean late-night screen time. Turn Off the Lights gives students a comfortable dark theme on Google Classroom, Khan Academy, Udemy, and every learning platform.

💡 Install Free — Turn Off the Lights See All Features →

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Education Dark Mode

Dark Mode for Every Learning Platform

Guides for each platform below — perfect for students studying after dark.

Google Classroom Khan Academy Udemy Canvas Schoology Quizlet Google Docs Wikipedia

Why Students Need Dark Mode

Studying often happens at night — exactly when bright screens are hardest on your eyes and most disruptive to sleep. Most learning platforms like Google Classroom and Canvas have no dark mode at all, leaving students staring at white pages for hours.

Better Focus for Long Study Sessions

Dark mode reduces glare and makes long reading sessions more comfortable. With Turn Off the Lights you can schedule it to turn on automatically in the evening — one less thing to think about during exam season.

Open Source, Private, and Free — Always

Turn Off the Lights collects no personal data, displays no advertising, and charges nothing. The extension is fully open-source under the GNU General Public License Version 2 (GPLv2), with its complete source code available on GitHub for anyone to inspect. It has been in continuous development since 2009 and remains one of the most trusted browser extensions available, with millions of active users across all major browsers. Stefan Van Damme is the solo developer and has maintained the extension with monthly updates for over 15 years.

How It Works

Get Dark Mode Everywhere in Under 30 Seconds

Turn Off the Lights is available in every major browser store and takes less than 30 seconds to install and activate. No configuration needed — it works instantly.

1

Install Turn Off the Lights

Add the free extension from your browser's store — Chrome, Firefox, Edge, Safari, or Opera.

2

Enable Night Mode

Open Turn Off the Lights Options → Night Mode tab and enable the Night Mode switch.

3

Customize Your Dark Theme

Pick your background, text, and link colors — or set an automatic schedule. Every website now loads dark.

Turn Off the Lights lamp icon

FAQ

FAQ — Dark Mode for Education

Does Google Classroom have a dark mode? +

No — Google Classroom has no built-in dark mode on the web. Turn Off the Lights applies Night Mode to it and to every other learning platform.

Does dark mode work on Udemy and Khan Academy? +

Yes — Night Mode works on Udemy, Khan Academy, Canvas, Schoology, Quizlet, and any other education site.

Can I schedule dark mode for evening study sessions? +

Yes — set a schedule once and dark mode turns on automatically at your chosen times, every day.

Is Turn Off the Lights free for students? +

Yes — completely free and open-source for everyone, with no account and no tracking.

Dark Mode Guides

More Dark Mode Guides

Explore more dark mode guides and features:

Social Media Streaming Shopping Email Education Developer Tools Banking & Finance Messaging Apps Productivity Tools Auto Schedule Brightness Control Keyboard Shortcuts System Sync Battery Savings Accessibility What Is Dark Mode? Every Website

Ready to Study in Dark Mode?

Join millions of users who rely on Turn Off the Lights for a comfortable, dark browsing experience — completely free.

💡 Install Free — Education Dark Mode