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Browser Extensions · head to head

BuiltWith vs Night Eye

BuiltWith logo

BuiltWith

Browser Extensions

See what websites are built with

From
Free
Rated
-
Full reviewWebsite
Night Eye logo

Night Eye

Browser Extensions

Dark mode on any 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; Night Eye can impact browser performance, especially on older or less powerful devices due to color conversion processing
  • They diverge on capability: BuiltWith covers Technology profiling, Night Eye covers Dark mode.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which BuiltWith and Night Eye actually diverge.

Attributes where BuiltWith and Night Eye differ
AttributeBuiltWithNight Eye
Pricing modelsubscriptionUnknown
PlatformsWebChrome, Safari, Edge, Firefox, Opera, Brave
Founded20072018

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 Night Eye

  • Dark mode
  • Color analysis
  • Image preservation
  • Per-site settings
  • Safari support
  • Opera 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 Night Eye
  • Competitive analysis and lead generationnot Night Eye
  • Web technology tracking and reportingnot Night Eye

Night Eye

  • Force a consistent dark mode on websites that don't natively support onenot BuiltWith
  • Reduce eye strain and blue light exposure during night browsing via a built-in blue-light filternot BuiltWith
  • Per-site color, brightness, contrast, and saturation customizationnot BuiltWith
  • Selectively convert only icons/small images rather than full images to preserve visual fidelity in dark modenot 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

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

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

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

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 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

Questions people ask

Is BuiltWith or Night Eye better?
Neither clearly leads. BuiltWith starts at Free and Night Eye at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, BuiltWith or Night Eye?
BuiltWith starts at Free and Night Eye at Free.
Does BuiltWith or Night Eye run on more platforms?
BuiltWith runs on Web. Night Eye runs on Chrome, Safari, Edge, Firefox, Opera, Brave.
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 Night Eye is typically brought in for.
What can BuiltWith do that Night Eye cannot?
BuiltWith covers Technology profiling, Market research, Competitor analysis, Lead generation. Night Eye covers Dark mode, Color analysis, Image preservation, Per-site 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
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
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
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
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
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
BuiltWith: What payment methods does BuiltWith accept?

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

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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