Dark mode for any website.
Remembered per site.

DimSite turns bright pages dark with one click and remembers your choice for every site. Photos keep their colors, and nothing ever leaves your browser.

Works in Chrome, Edge, Brave and other Chromium browsers.

The DimSite popup: a big switch for the current site, look and brightness sliders

Night mode that respects every site

Not every page should look the same at night. DimSite keeps a separate setting for each site and applies it before the page appears.

One switch per site

Turn dark mode on for the sites you read at night. Subdomains follow their parent site unless you say otherwise.

Invert or dim

Invert turns white pages dark while photos and videos keep their colors. Dim simply darkens a page that should keep its colors.

Fine-tune the look

Brightness, contrast, sepia and grayscale with a live preview right on the page, saved for that site.

Night schedule

Only want dark pages after sunset? Set a window such as 20:00–07:00, and DimSite switches on and off by itself.

Skips sites that are already dark

Pages that already have a dark design are recognized and left alone, so you don't get a light page by accident.

Keyboard and menu

Press Alt+Shift+N or right-click the toolbar icon to toggle the current site without opening anything.

See it in action

A white page, darkened in one click
A white page, darkened in one click
Your sites, each with its own look
Your sites, each with its own look
Global mode, schedule and options
Global mode, schedule and options

How it works

  1. Install DimSite

    Add it from the Chrome Web Store and pin the moon icon to the toolbar.

  2. Open a bright site

    Click the moon and flip the big switch, or press Alt+Shift+N.

  3. Make it yours

    Pick Invert or Dim and tune the sliders. DimSite remembers it for this site.

Private by design

DimSite works entirely inside your browser.

Read the privacy policy
  • No accounts, no analytics, no ads, no tracking.
  • Your site list and settings are stored only in your browser.
  • Pages are never read, collected or sent anywhere.
  • The only network request is a small daily config file from dimsite.com, without any personal data.

Frequently asked questions

Is DimSite free?

Yes. DimSite is free, with no ads and no premium tier.

Why does DimSite need access to all sites?

To darken a page before it appears, its small stylesheet must load on every page you open. It only changes colors; it does not read or send page content.

Will my photos and videos look inverted?

No. In Invert mode, images, videos, canvases and background pictures are inverted back, so they keep their natural colors.

A site looks wrong. What can I do?

Try the Dim look for that site, adjust brightness or contrast, or switch DimSite off just for that site. Your choice is remembered.

Does it work in incognito windows?

Yes, if you allow DimSite in incognito on chrome://extensions. Settings are shared with normal windows.

How do I move my settings to another computer?

Open Settings in the popup, click Export, and import the file on the other computer.

Give your eyes a break tonight

Add DimSite to Chrome