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Browser Extensions · head to head

Dark Reader vs WhatFont

Dark Reader logo

Dark Reader

Browser Extensions

Dark mode for every website

From
Free
Rated
-
Full reviewWebsite
WhatFont logo

WhatFont

Browser Extensions

Identify fonts on web pages

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Dark Reader cannot modify PDF files displayed in browsers; WhatFont can only detect web-safe fonts and fonts loaded via web font services
  • They diverge on capability: Dark Reader covers Dark mode, WhatFont covers Font detection.

Where they differ

Only the attributes on which Dark Reader and WhatFont actually diverge.

Attributes where Dark Reader and WhatFont differ
AttributeDark ReaderWhatFont
PlatformsChrome, Firefox, Safari, EdgeChrome, Firefox, Arc
Founded20142011

Identical on both: starting price (Free), pricing model (Unknown), 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

Only in WhatFont

  • Font detection
  • Typography info
  • Service detection
  • Hover inspection

Both cover

  • Chrome support
  • Firefox support
  • Edge support
  • Safari 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 WhatFont
  • Reducing eye strain for night-time or extended browsingnot WhatFont
  • Per-site brightness, contrast, and sepia customizationnot WhatFont
  • Toggling dark mode on/off per domainnot WhatFont
  • Accessibility use for light-sensitive usersnot WhatFont

WhatFont

No use cases recorded yet. See the WhatFont review.

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

WhatFont

  • Can only detect web-safe fonts and fonts loaded via web font services
  • Does not work on images with embedded text or rasterized typography
  • Limited to inspecting single text elements at a time

Pricing, plan by plan

Dark Reader

Free

No published plan breakdown. See the Dark Reader review.

WhatFont

Free
  • FreeFree
    • Font inspection on any website
    • Font family identification
    • Font size and weight detection

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 WhatFont if

  • You need font detection.
  • You want to start without paying.
  • You work on Chrome, Firefox, Arc.
  • You also want typography info.
WhatFont review

Questions people ask

Is Dark Reader or WhatFont better?
Neither clearly leads. Dark Reader starts at Free and WhatFont at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Dark Reader or WhatFont?
Dark Reader starts at Free and WhatFont at Free.
Does Dark Reader or WhatFont run on more platforms?
Dark Reader runs on Chrome, Firefox, Safari, Edge. WhatFont runs on Chrome, Firefox, Arc.
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 WhatFont is typically brought in for.
What can Dark Reader do that WhatFont cannot?
Dark Reader covers Dark mode, Custom brightness, Contrast adjustment, Site-specific settings. WhatFont covers Font detection, Typography info, Service detection, Hover inspection. Both handle Chrome support, Firefox support, Edge support, Safari 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
WhatFont: How do I use WhatFont to inspect fonts?

Click the WhatFont icon in your browser toolbar to activate it, then hover over any text on a webpage to see the font name and details in a pop-up. Click the text to reveal additional information like font style, weight, color, and font samples.

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
WhatFont: What browsers does WhatFont support?

WhatFont works on Google Chrome, Firefox, and Arc browser. It is available as a free extension in each browser's extension store.

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
WhatFont: Is WhatFont free?

Yes. WhatFont is a completely free browser extension with no paid tier or premium features. It is maintained as a free tool for designers and developers.

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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Related pages

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