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Browser Extensions · head to head

Dark Reader vs React Developer Tools

Dark Reader logo

Dark Reader

Browser Extensions

Dark mode for every 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: Dark Reader cannot modify PDF files displayed in browsers; React Developer Tools react Developer Tools is only available as a Chrome browser extension. No support for other browsers mentioned.
  • They diverge on capability: Dark Reader 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 Dark Reader and React Developer Tools actually diverge.

Attributes where Dark Reader and React Developer Tools differ
AttributeDark ReaderReact Developer Tools
Pricing modelUnknownfree
PlatformsChrome, Firefox, Safari, EdgeChrome, Firefox, Edge
Founded20142004

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 Dark Reader

  • Dark mode
  • Custom brightness
  • Contrast adjustment
  • Site-specific settings
  • Safari 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.

Dark Reader

  • Applying dark mode to websites that don't natively support itnot React Developer Tools
  • Reducing eye strain for night-time or extended browsingnot React Developer Tools
  • Per-site brightness, contrast, and sepia customizationnot React Developer Tools
  • Toggling dark mode on/off per domainnot React Developer Tools
  • Accessibility use for light-sensitive usersnot React Developer Tools

React Developer Tools

  • Debugging React components during developmentnot Dark Reader
  • Inspecting component state and propsnot Dark Reader
  • Performance profiling of React applicationsnot Dark Reader

Where each one falls short

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

Dark Reader

  • Cannot modify PDF files displayed in browsers
  • Performance impact on devices with limited resources

React Developer Tools

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

Pricing, plan by plan

Dark Reader

Free

No published plan breakdown. See the Dark Reader review.

React Developer Tools

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

Which should you pick?

Choose Dark Reader if

  • You need dark mode.
  • You want to start without paying.
  • You work on Chrome, Firefox, Safari, Edge.
  • You also want custom brightness.
Dark Reader 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 Dark Reader or React Developer Tools better?
Neither clearly leads. Dark Reader 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, Dark Reader or React Developer Tools?
Dark Reader starts at Free and React Developer Tools at Free.
Does Dark Reader or React Developer Tools run on more platforms?
Dark Reader runs on Chrome, Firefox, Safari, Edge. React Developer Tools runs on Chrome, Firefox, Edge.
Can I use Dark Reader for free?
Both have a free tier, so you can try either at no cost before committing.
What is Dark Reader best used for?
Dark Reader is most often used for applying dark mode to websites that don't natively support it, reducing eye strain for night-time or extended browsing, per-site brightness, contrast, and sepia customization, toggling dark mode on/off per domain. Of those, applying dark mode to websites that don't natively support it and reducing eye strain for night-time or extended browsing are not what React Developer Tools is typically brought in for.
What can Dark Reader do that React Developer Tools cannot?
Dark Reader covers Dark mode, Custom brightness, Contrast adjustment, Site-specific 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

Dark Reader: Is Dark Reader free to use?

Yes, Dark Reader is completely free with no ads and no tracking. It does not send user data anywhere.

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
Dark Reader: How can I customize the dark mode in Dark Reader?

Users can configure brightness, contrast, and sepia filter settings to suit their specific needs, and selectively enable or disable Dark Reader for specific websites.

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
Dark Reader: What browsers does Dark Reader support?

Dark Reader is available for Chrome, Firefox, Safari, and Edge browsers across desktop and mobile platforms.

Source
Dark Reader: Does Dark Reader work offline?

Yes, Dark Reader runs entirely on your device with no external dependencies. It analyzes web pages locally to generate dark themes.

Source
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