Dark Mode Coverage
Reduce eye strain on most sites with one click.
From simple blogs to complex web apps.
Sign up now, get a 7-day trial
Dark mode that works
where you browse.
One click to dark mode. Per-site control. Works while you browse.
https://www.reddit.com
Dark Theme
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Built with privacy and performance in mind
Latest Chrome standardWorks on most sitesAll processing on your deviceFast local engine
Everything you need for comfortable browsing
Feel the difference from day one.
Site Control
Choose auto, on, or off for each website.
Your per-site choice is saved for next time.
Visual Tuning
Pick a preset or fine-tune how dark mode looks.
Adjust brightness, contrast, sepia, and grayscale.
Smart Activation
Skips pages that already have their own dark mode.
Override manually when you need to.
Built-in Recovery
If something looks off, one tap brings you back to normal.
A quick reload option is always available.
Private by Design
Your pages never leave your device.
All rendering happens locally — nothing is sent to a server.
RESOURCE USE
Light. Fast. Efficient.
Designed to stay out of the way while making your screen easier on the eyes.
Light on memory
Only active tabs use resources. Idle tabs cost nothing.
Near-zero when idle
No background CPU usage when you're not browsing darkened sites.
Fast first paint
Dark mode applies in under 50ms — faster than a blink.
Built to be lightweight
Lowen only activates on tabs that need dark mode. Everything else stays untouched.
Smart resource use
Only active tabs use memory and CPU
Shared engine
Loaded once, shared across all tabs
Resource overview
Per-tab footprintMinimal
Only loads on tabs with dark mode active
Engine sizeSmall
Loaded once and shared across all tabs
Idle impact~0%
Zero CPU when no darkened tab is open
Time to dark mode< 50 ms
Nearly instant on most pages
Actual usage varies by site complexity and number of active tabs.
Cloud Sync
One account keeps everything in sync — across computers, Chrome profiles, and devices. Set it up once, and it just works everywhere.
Multiple computers
Same settings on every PC and laptop
One sync
Chrome profiles
All profiles stay in sync automatically
Choose your plan
Free
$0/yr
Try dark mode on up to 5 sites. No sync.
- Sites enabled5
- Multiple Chrome
- All site settingsBasic
- Priority support
- 7-day free trial
Most popular
Pro
$49.99/yr
Unlimited sites, works across multiple Chrome profiles.
- Sites enabledUnlimited
- Multiple Chrome
- All site settingsAdvanced
- Priority support
- 7-day free trial
Frequently asked questions
Does Lowen work on most websites?
Yes. Lowen is designed for broad coverage — from simple blogs and news sites to complex web apps with dynamic content.
What control do I get per site?
You can set each website to auto, always on, or always off. Your choice is remembered so it works the same way next time you visit.
Is my browsing data private?
All dark mode rendering happens locally on your device. The only server communication is for your account, subscription, and synced site settings — no page content is ever sent.
What happens if dark mode doesn't look right on a page?
Lowen shows a clear warning and gives you a one-tap reload option to restore the original page instantly.
How are Free and Pro different?
Free lets you use dark mode on up to 5 sites. Pro unlocks unlimited sites and syncs your settings across all your devices and Chrome profiles.
Is there a free trial?
Yes — sign up with your email to get a 7-day free trial of Pro features. No credit card required.
How do I log in?
Sign up with your email to get started. If you upgrade to Pro, the same email is your account — just enter it and we'll send a one-time login code. No password needed.
Does it work on YouTube, Gmail, and other Google sites?
Lowen works on most websites including popular ones like YouTube, Gmail, Reddit, and more. Some sites with their own dark mode may be skipped automatically.
Ready to browse in dark mode?
Install on Chrome and start with site-level control in minutes.
Requires Chrome on Windows, macOS, or Linux.