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Browser Extensions · head to head

Night Eye vs Userscripts

Night Eye logo

Night Eye

Browser Extensions

Dark mode on any website

From
Free
Rated
-
Full reviewWebsite
Userscripts logo

Userscripts

Browser Extensions

Open-source userscript manager for Safari on Mac and iOS

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; Userscripts safari cannot let extensions bypass a site's Content Security Policy, so strict sites produce "Refused to execute a script" errors that the @inject-into workaround does not always fix.
  • They diverge on capability: Night Eye covers Dark mode, Userscripts covers Built-in script editor.
  • Prices and features above were last checked on 15 September 2026.

Where they differ

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

Attributes where Night Eye and Userscripts differ
AttributeNight EyeUserscripts
Pricing modelUnknownopen-source
PlatformsChrome, Safari, Edge, Firefox, Opera, BraveSafari, macOS, iOS
Founded2018Unknown

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
  • Chrome support
  • Firefox support
  • Edge support
  • Safari support

Only in Userscripts

  • Built-in script editor
  • Standard metadata support
  • GM API
  • Remote script updating
  • iCloud sync
  • Per-page popup

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 Userscripts
  • Reduce eye strain and blue light exposure during night browsing via a built-in blue-light filternot Userscripts
  • Per-site color, brightness, contrast, and saturation customizationnot Userscripts
  • Selectively convert only icons/small images rather than full images to preserve visual fidelity in dark modenot Userscripts

Userscripts

  • Running userscripts on Safari without paying for Tampermonkeynot Night Eye
  • Running userscripts on an iPhone or iPadnot Night Eye
  • Writing scripts on a Mac and syncing them to iOSnot Night Eye
  • Blocking or restyling site elements Safari content blockers cannot reachnot Night Eye
  • Keeping a script library under an open-source licencenot 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

Userscripts

  • Safari cannot let extensions bypass a site's Content Security Policy, so strict sites produce "Refused to execute a script" errors that the @inject-into workaround does not always fix.
  • Apple only. There is no Chrome, Firefox or Edge build, so it cannot be a cross-browser answer.
  • iCloud sync is documented as having delays, which is awkward when editing the same script on two devices.
  • Requires macOS 12 and Safari 14.1, or iOS 15.1, so older Apple hardware is excluded.
  • GPL v3 means a commercial licence is required for non-open-source use, which matters if you are embedding rather than just using it.

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

Userscripts

Free
  • FreeFree
    • Full functionality
    • GPL v3 licensed
    • macOS, iOS and iPadOS

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 Userscripts if

  • You need built-in script editor.
  • You want to start without paying.
  • You work on Safari, macOS, iOS.
  • You also want standard metadata support.
Userscripts review

Questions people ask

Is Night Eye or Userscripts better?
Neither clearly leads. Night Eye starts at Free and Userscripts at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Night Eye or Userscripts?
Night Eye starts at Free and Userscripts at Free.
Does Night Eye or Userscripts run on more platforms?
Night Eye runs on Chrome, Safari, Edge, Firefox, Opera, Brave. Userscripts runs on Safari, macOS, iOS.
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 Userscripts is typically brought in for.
What can Night Eye do that Userscripts cannot?
Night Eye covers Dark mode, Color analysis, Image preservation, Per-site settings. Userscripts covers Built-in script editor, Standard metadata support, GM API, Remote script updating.

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
Userscripts: Is Userscripts for Safari free?

Yes, free on the App Store and licensed under GPL v3. A commercial licence is required for use in something that is not itself open source.

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
Userscripts: Does it work on iPhone?

Yes, on iOS and iPadOS 15.1 or later, which makes it one of the few ways to run userscripts on an iPhone.

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
Userscripts: Why do I get "Refused to execute a script" errors?

Safari does not let extensions bypass a site's Content Security Policy the way other browsers do. The documented workaround is changing the script's @inject-into setting, though it does not resolve every case.

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
Userscripts: Do my scripts sync between Mac and iPhone?

Yes, over iCloud, though the project notes the sync can be delayed rather than immediate.

Source
Userscripts: What are the system requirements?

macOS 12 or later with Safari 14.1 or later, or iOS and iPadOS 15.1 or later.

Source
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