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Browser Extensions · head to head

Night Eye vs Stylus

Night Eye logo

Night Eye

Browser Extensions

Dark mode on any website

From
Free
Rated
-
Full reviewWebsite
Stylus logo

Stylus

Browser Extensions

Restyle the web with custom CSS

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Night Eye can impact browser performance, especially on older or less powerful devices due to color conversion processing; Stylus crashes and instability when applying certain styles
  • They diverge on capability: Night Eye covers Dark mode, Stylus covers Custom CSS injection.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Night Eye and Stylus actually diverge.

Attributes where Night Eye and Stylus differ
AttributeNight EyeStylus
Pricing modelUnknownfree
PlatformsChrome, Safari, Edge, Firefox, Opera, BraveChrome, Firefox, Edge, Opera
Founded20182017

Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated), category (Browser Extensions).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Night Eye

  • Dark mode
  • Color analysis
  • Image preservation
  • Per-site settings
  • Safari support

Only in Stylus

  • Custom CSS injection
  • Style management
  • userstyles.world integration
  • Built-in editor

Both cover

  • Chrome support
  • Firefox support
  • Edge support
  • Opera support

What people use each for

The jobs each tool is most often brought in to do.

Night Eye

  • Force a consistent dark mode on websites that don't natively support onenot Stylus
  • Reduce eye strain and blue light exposure during night browsing via a built-in blue-light filternot Stylus
  • Per-site color, brightness, contrast, and saturation customizationnot Stylus
  • Selectively convert only icons/small images rather than full images to preserve visual fidelity in dark modenot Stylus

Stylus

  • Customizing website appearance with community-created CSS themesnot Night Eye
  • Writing personal style overrides for specific websitesnot Night Eye
  • Managing multiple styles across different websites automaticallynot Night Eye
  • Searching and installing user-styles for current websitesnot Night Eye
  • Migrating style collections from Stylish extensionnot Night Eye

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Night Eye

  • Can impact browser performance, especially on older or less powerful devices due to color conversion processing
  • Ineffective on web applications with fixed color schemes that cannot be altered
  • Does not work offline or on non-web content
  • Limited customization on websites that have their own built-in dark mode implementation

Stylus

  • Crashes and instability when applying certain styles
  • No visual element selector tool for identifying page elements to style
  • Security risk if downloading and applying untrusted user-created styles

Pricing, plan by plan

Night Eye

Free
  • LiteFree
    • Dark mode on up to 5 websites
    • No ads
  • Pro$9/year
    • Up to 3 browsers
  • Pro Max$14/year
    • Up to 6 browsers
  • Lifetime$40/mo
    • Unlimited browsers
    • Lifetime updates

Stylus

Free
  • FreeFree
    • Custom CSS
    • Style library
    • Style editor

Which should you pick?

Choose Night Eye if

  • You need dark mode.
  • You want to start without paying.
  • You work on Chrome, Safari, Edge, Firefox, Opera, Brave.
  • You also want color analysis.
Night Eye review

Choose Stylus if

  • You need custom css injection.
  • You want to start without paying.
  • You work on Chrome, Firefox, Edge, Opera.
  • You also want style management.
Stylus review

Questions people ask

Is Night Eye or Stylus better?
Neither clearly leads. Night Eye starts at Free and Stylus at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Night Eye or Stylus?
Night Eye starts at Free and Stylus at Free.
Does Night Eye or Stylus run on more platforms?
Night Eye runs on Chrome, Safari, Edge, Firefox, Opera, Brave. Stylus runs on Chrome, Firefox, Edge, Opera.
Can I use Night Eye for free?
Both have a free tier, so you can try either at no cost before committing.
What is Night Eye best used for?
Night Eye is most often used for force a consistent dark mode on websites that don't natively support one, reduce eye strain and blue light exposure during night browsing via a built-in blue-light filter, per-site color, brightness, contrast, and saturation customization, selectively convert only icons/small images rather than full images to preserve visual fidelity in dark mode. Of those, force a consistent dark mode on websites that don't natively support one and reduce eye strain and blue light exposure during night browsing via a built-in blue-light filter are not what Stylus is typically brought in for.
What can Night Eye do that Stylus cannot?
Night Eye covers Dark mode, Color analysis, Image preservation, Per-site settings. Stylus covers Custom CSS injection, Style management, userstyles.world integration, Built-in editor. Both handle Chrome support, Firefox support, Edge support, Opera support.

Answered from the vendors’ own pages

Night Eye: What is Night Eye?

Night Eye is a browser extension that applies dark mode to websites by analyzing page colors and converting them into a comfortable dark theme. It preserves photos and videos and offers customization options for brightness, contrast, and blue light filtering.

Source
Stylus: Is Stylus free?

Yes. Stylus is completely free and open-source, available for Chrome, Firefox, Edge, and Opera browsers.

Source
Night Eye: What is the pricing for Night Eye?

Night Eye Lite is free with dark mode on up to 5 websites. Night Eye Pro costs $9/year for up to 3 browsers, Night Eye Pro Max costs $14/year for up to 6 browsers, and lifetime updates cost $40 for unlimited use across 10 browsers.

Source
Stylus: Can I use Stylus to change the browser UI?

No. Due to WebExtensions security restrictions, Stylus can only customize website pages, not the browser interface itself.

Source
Night Eye: Which browsers does Night Eye support?

Night Eye is available for Chrome, Safari, Microsoft Edge, Firefox, Opera, Brave, and other Chromium-based browsers.

Source
Stylus: What CSS pre-processors does Stylus support?

Stylus supports CSS, LESS, and Stylus syntax with built-in linting using Stylelint and CSSLint-mod with customizable rules.

Source
Night Eye: Does Night Eye track my browsing?

No. Night Eye does not monitor, process, or store browsing activity. Webpage conversion is performed locally on the user's device. No ads appear in the free Lite version.

Source
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