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Email Dark Mode
Dark Mode for Every Webmail
Step-by-step guides for each email service below — or install once and darken every inbox in your browser.
Why Email Needs Dark Mode
Reading long threads on a white background is one of the biggest sources of daily screen glare. Gmail has a dark theme buried in settings, Outlook's is partial, and many other webmail clients have none — and none of them share the same look.
One Inbox Theme, Everywhere
With Turn Off the Lights, every webmail you open gets the same Night Mode theme — your colors, your schedule. Dark email in the morning, light during the day if you prefer, all automatic.
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.
Install Turn Off the Lights
Add the free extension from your browser's store — Chrome, Firefox, Edge, Safari, or Opera.
Enable Night Mode
Open Turn Off the Lights Options → Night Mode tab and enable the Night Mode switch.
Customize Your Dark Theme
Pick your background, text, and link colors — or set an automatic schedule. Every website now loads dark.
FAQ
FAQ — Dark Mode for Email
Gmail has a dark theme in settings, but it doesn't apply to every element and can't be scheduled. Turn Off the Lights applies a complete, customizable dark theme automatically.
Yes — Night Mode applies to Outlook.com, Yahoo Mail, and any other webmail you open in your browser.
HTML emails that set their own white background keep it; the surrounding interface and plain emails go dark. You can also dim the page instead for a softer effect.
Yes — completely free and open-source, with no ads, no tracking, and no account required.
Dark Mode Guides
More Dark Mode Guides
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