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Browser Extensions · head to head

BuiltWith vs Dark Reader

BuiltWith logo

BuiltWith

Browser Extensions

See what websites are built with

From
Free
Rated
-
Full reviewWebsite
Dark Reader logo

Dark Reader

Browser Extensions

Dark mode for every website

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: BuiltWith free tier limited to individual site lookups with no features; Dark Reader cannot modify PDF files displayed in browsers
  • They diverge on capability: BuiltWith covers Technology profiling, Dark Reader covers Dark mode.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

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

Attributes where BuiltWith and Dark Reader differ
AttributeBuiltWithDark Reader
Pricing modelsubscriptionUnknown
PlatformsWebChrome, Firefox, Safari, Edge
Founded20072014

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 BuiltWith

  • Technology profiling
  • Market research
  • Competitor analysis
  • Lead generation

Only in Dark Reader

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

Both cover

  • Chrome support
  • Firefox support
  • Edge support

What people use each for

The jobs each tool is most often brought in to do.

BuiltWith

  • Technology intelligence and market researchnot Dark Reader
  • Competitive analysis and lead generationnot Dark Reader
  • Web technology tracking and reportingnot Dark Reader

Dark Reader

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

Where each one falls short

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

BuiltWith

  • Free tier limited to individual site lookups with no features
  • Basic plan severely limited: 2 technologies, 2 keywords, 2 reports
  • Single login user on Basic and Pro plans
  • Minimum paid plan is $295/month
  • No monthly payment option mentioned; minimum 1-month term annual

Dark Reader

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

Pricing, plan by plan

BuiltWith

Free
  • FreeFree
    • Individual site lookups
    • Limited data access
  • Basic$295/month
    • 2 Technologies
    • 2 Keywords
    • 2 Retail Reports
  • Pro$495/month
    • Unlimited Technologies
    • Unlimited Keywords
    • Unlimited Retail Reports
  • Team$995/month
    • Unlimited access all features
    • Unlimited Pro Logins
    • CRM Integration

Dark Reader

Free

No published plan breakdown. See the Dark Reader review.

Which should you pick?

Choose BuiltWith if

  • You need technology profiling.
  • You want to start without paying.
  • You also want market research.
BuiltWith review

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

Questions people ask

Is BuiltWith or Dark Reader better?
Neither clearly leads. BuiltWith starts at Free and Dark Reader at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, BuiltWith or Dark Reader?
BuiltWith starts at Free and Dark Reader at Free.
Does BuiltWith or Dark Reader run on more platforms?
BuiltWith runs on Web. Dark Reader runs on Chrome, Firefox, Safari, Edge.
Can I use BuiltWith for free?
Both have a free tier, so you can try either at no cost before committing.
What is BuiltWith best used for?
BuiltWith is most often used for technology intelligence and market research, competitive analysis and lead generation, web technology tracking and reporting. Of those, technology intelligence and market research and competitive analysis and lead generation are not what Dark Reader is typically brought in for.
What can BuiltWith do that Dark Reader cannot?
BuiltWith covers Technology profiling, Market research, Competitor analysis, Lead generation. Dark Reader covers Dark mode, Custom brightness, Contrast adjustment, Site-specific settings. Both handle Chrome support, Firefox support, Edge support.

Answered from the vendors’ own pages

BuiltWith: Does BuiltWith offer a free plan?

Yes, BuiltWith offers a free tier for individual website lookups. For full features, paid plans start at $295/month (Basic).

Source
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
BuiltWith: What are the differences between Basic and Pro plans?

Basic ($295/month) includes 2 technologies, 2 keywords, and 2 retail reports. Pro ($495/month) provides unlimited access to technologies, keywords, and retail reports.

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
BuiltWith: How many users can access BuiltWith simultaneously?

Basic and Pro plans include 1 system login. The Team plan at $995/month provides unlimited Pro Logins for multi-user access.

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
BuiltWith: What payment methods does BuiltWith accept?

BuiltWith accepts credit cards (Visa, Mastercard, Amex), PayPal, Bitcoin, and wire transfers for yearly contracts.

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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