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Browser Extensions · head to head

Dark Reader vs ProWritingAid

Dark Reader logo

Dark Reader

Browser Extensions

Dark mode for every website

From
Free
Rated
-
Full reviewWebsite
ProWritingAid logo

ProWritingAid

Browser Extensions

AI writing assistant and grammar checker

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Dark Reader cannot modify PDF files displayed in browsers; ProWritingAid free plan limited to 500 word count with only 2 report runs per day
  • They diverge on capability: Dark Reader covers Dark mode, ProWritingAid covers Grammar checking.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

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

Attributes where Dark Reader and ProWritingAid differ
AttributeDark ReaderProWritingAid
Pricing modelUnknownfreemium
PlatformsChrome, Firefox, Safari, EdgeWeb, Windows, Mac, Chrome, Firefox, Edge
Founded20142013

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

Only in ProWritingAid

  • Grammar checking
  • Style analysis
  • Readability reports
  • Plagiarism checker

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

ProWritingAid

  • Grammar and style checking for writers and authorsnot Dark Reader
  • Story planning and structure analysisnot Dark Reader
  • Character and manuscript analysis for fiction writersnot Dark Reader
  • Integration with Microsoft Word, Google Docs, Scrivener, and Notionnot 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

ProWritingAid

  • Free plan limited to 500 word count with only 2 report runs per day
  • Advanced AI features (50 Sparks per day, Chapter Critiques) only in Premium Pro tier
  • Desktop apps for Mac and Windows; iOS/Android support limited to specific integrations
  • Yearly subscriptions significantly more cost-effective than monthly (67% savings)

Pricing, plan by plan

Dark Reader

Free

No published plan breakdown. See the Dark Reader review.

ProWritingAid

Free
  • FreeFree
    • Basic grammar and spelling checks
    • 500-word limit per check
    • 2 report runs daily
  • Premium$30/month
    • Unlimited word count
    • Unlimited rephrases
    • 5 Sparks daily
  • Premium Pro$36/month
    • All Premium features
    • 50 Sparks daily
    • 3 Chapter Critiques daily

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 ProWritingAid if

  • You need grammar checking.
  • You want to start without paying.
  • You work on Web, Windows, Mac, Chrome, Firefox, Edge.
  • You also want style analysis.
ProWritingAid review

Questions people ask

Is Dark Reader or ProWritingAid better?
Neither clearly leads. Dark Reader starts at Free and ProWritingAid at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Dark Reader or ProWritingAid?
Dark Reader starts at Free and ProWritingAid at Free.
Does Dark Reader or ProWritingAid run on more platforms?
Dark Reader runs on Chrome, Firefox, Safari, Edge. ProWritingAid runs on Web, Windows, Mac, 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 ProWritingAid is typically brought in for.
What can Dark Reader do that ProWritingAid cannot?
Dark Reader covers Dark mode, Custom brightness, Contrast adjustment, Site-specific settings. ProWritingAid covers Grammar checking, Style analysis, Readability reports, Plagiarism checker. 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
ProWritingAid: How much does ProWritingAid cost?

ProWritingAid is free. Premium plan costs $30/month ($120/year), and Premium Pro costs $36/month ($144/year). Both yearly plans offer significant monthly savings. Lifetime options cost $399 (Premium) or $699 (Premium Pro).

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
ProWritingAid: Is there a free version of ProWritingAid?

Yes. The free plan includes basic grammar and spelling checks with a 500-word limit per check, 2 report runs daily, 10 rephrases daily, and 3 Sparks daily.

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
ProWritingAid: What is the difference between Premium and Premium Pro?

Premium ($30/month) includes 25+ analysis reports and 1 Chapter Critique daily. Premium Pro ($36/month) adds 50 Sparks daily, 3 Chapter Critiques daily, live workshops, and group critique sessions.

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
ProWritingAid: Does ProWritingAid offer a refund guarantee?

ProWritingAid offers a 3-day money-back guarantee for yearly and lifetime subscriptions. Monthly plans have no refund option.

Source
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