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Browser Extensions · head to head

Night Eye vs React Developer Tools

Night Eye logo

Night Eye

Browser Extensions

Dark mode on any website

From
Free
Rated
-
Full reviewWebsite
React Developer Tools logo

React Developer Tools

Browser Extensions

Debug React applications in your browser

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; React Developer Tools react Developer Tools is only available as a Chrome browser extension. No support for other browsers mentioned.
  • They diverge on capability: Night Eye covers Dark mode, React Developer Tools covers Component inspection.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Night Eye and React Developer Tools actually diverge.

Attributes where Night Eye and React Developer Tools differ
AttributeNight EyeReact Developer Tools
Pricing modelUnknownfree
PlatformsChrome, Safari, Edge, Firefox, Opera, BraveChrome, Firefox, Edge
Founded20182004

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
  • Opera support

Only in React Developer Tools

  • Component inspection
  • Props/State viewing
  • Performance profiler
  • Hooks debugging

Both cover

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

React Developer Tools

  • Debugging React components during developmentnot Night Eye
  • Inspecting component state and propsnot Night Eye
  • Performance profiling of React applicationsnot 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

React Developer Tools

  • React Developer Tools is only available as a Chrome browser extension. No support for other browsers mentioned.

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

React Developer Tools

Free
  • FreeFree
    • Component tree
    • Props inspection
    • State tracking

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 React Developer Tools if

  • You need component inspection.
  • You want to start without paying.
  • You work on Chrome, Firefox, Edge.
  • You also want props/state viewing.
React Developer Tools review

Questions people ask

Is Night Eye or React Developer Tools better?
Neither clearly leads. Night Eye starts at Free and React Developer Tools at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Night Eye or React Developer Tools?
Night Eye starts at Free and React Developer Tools at Free.
Does Night Eye or React Developer Tools run on more platforms?
Night Eye runs on Chrome, Safari, Edge, Firefox, Opera, Brave. React Developer Tools runs on Chrome, Firefox, Edge.
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 React Developer Tools is typically brought in for.
What can Night Eye do that React Developer Tools cannot?
Night Eye covers Dark mode, Color analysis, Image preservation, Per-site settings. React Developer Tools covers Component inspection, Props/State viewing, Performance profiler, Hooks debugging. Both handle Chrome support, Firefox support, Edge 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
React Developer Tools: How much does React Developer Tools cost?

React Developer Tools is completely free. It is a free browser extension with no subscription fees or costs.

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
React Developer Tools: Is React Developer Tools available for download?

Yes. React Developer Tools is available as a free extension on the Chrome Web Store for download at no cost.

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
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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