The quiet part of the evening
Long-form reading after dark is where a page's own colours stop helping. Text, surfaces and images each need different treatment.
A secondary surface keeps its hierarchy.
Eclipser — Dark Mode & Night Theme for Every Website
Dark mode, softened, or original, per website. 75-200% text scaling, 0-80% glare dimming. Page content never sent to our servers.
Media dimming
Scale readable text per site in 5% steps and dim photos, video, canvas, and background images without reading their pixels. A site-specific 0% disables inherited global media dimming on that site.
Appearance
Preserve large photos and videos while adapting small interface icons for dark surfaces.
Text size
Create appearance profiles for an entire site or one specific page.
Dark Mode & Night Theme for Every Website
- Create appearance profiles for an entire site or one specific page.
- Enable or disable all color, text, and media effects for one site without changing other sites.
- Scale readable text per site in 5% steps and dim photos, video, canvas, and background images without reading their pixels. A site-specific
0%disables inherited global media dimming on that site. - Follow the system theme or use a schedule that can cross midnight.
- Preserve large photos and videos while adapting small interface icons for dark surfaces.
- Optionally synchronize supported settings and web profiles through Google Chrome Sync.
- Export or import settings with a validated, versioned JSON file.
- Open PDF links in an optional local viewing surface.
Free
$0
- Enable or disable all color, text, and media effects for one site without changing other sites.
- Follow the system theme or use a schedule that can cross midnight.
Pro
$2.99 / month
$17.99 / year · $39.99 once
- Optionally synchronize supported settings and web profiles through Google Chrome Sync.
- Open PDF links in an optional local viewing surface.
FAQ
What is Eclipser?
Eclipser is a Chrome extension that applies a dark mode to websites. It also scales text from 75% to 200% and reduces media glare by up to 80%, and every setting can be made per site.
Does Eclipser work on every website?
It works on ordinary web pages, including frames whose whole parent chain is same-origin with the page. It cannot change cross-origin embedded interfaces, closed Shadow DOM, Picture-in-Picture windows, browser internal pages, extension stores, or some protected content.
Does Eclipser send my browsing data anywhere?
No. Page content, page text, form values, passwords, and image or video pixels are never sent to a Eclipser or Huzk Ltd server. Colour, typography, and media processing runs on your device.
Can I use different settings on different sites?
Yes. You can create an appearance profile for a whole site or one specific page, and turn all effects off for one site without changing any other site.
Is Eclipser free?
The core dark mode and the first three customized site or page targets are free. Every new installation also starts with a 7-day Pro trial; when it ends the extension continues on Free and every stored setting stays intact.
Does Eclipser download any code after installation?
No. No remote code is downloaded or executed. The extension also stays inactive until you read its disclosure and explicitly accept it.
Does Eclipser darken a site that is already dark?
No. Sites that already present a dark appearance are detected and left alone rather than darkened twice.