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Browser Extensions · head to head

Stylus vs Wappalyzer

Stylus logo

Stylus

Browser Extensions

Restyle the web with custom CSS

From
Free
Rated
-
Full reviewWebsite
Wappalyzer logo

Wappalyzer

Browser Extensions

Identify web technologies

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Stylus crashes and instability when applying certain styles; Wappalyzer cannot detect server-side or hidden technologies without client-side footprints
  • They diverge on capability: Stylus covers Custom CSS injection, Wappalyzer covers Technology detection.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Stylus and Wappalyzer actually diverge.

Attributes where Stylus and Wappalyzer differ
AttributeStylusWappalyzer
Pricing modelfreeUnknown
PlatformsChrome, Firefox, Edge, OperaChrome, Firefox, Edge, Web
Founded20172009

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 Stylus

  • Custom CSS injection
  • Style management
  • userstyles.world integration
  • Built-in editor
  • Opera support

Only in Wappalyzer

  • Technology detection
  • CMS identification
  • Framework analysis
  • Analytics tracking

Both cover

  • Chrome support
  • Firefox support
  • Edge support

What people use each for

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

Stylus

  • Customizing website appearance with community-created CSS themesnot Wappalyzer
  • Writing personal style overrides for specific websitesnot Wappalyzer
  • Managing multiple styles across different websites automaticallynot Wappalyzer
  • Searching and installing user-styles for current websitesnot Wappalyzer
  • Migrating style collections from Stylish extensionnot Wappalyzer

Wappalyzer

  • Building target prospect lists filtered by specific technology adoptionnot Stylus
  • Detecting when competitors migrate to new development stacksnot Stylus
  • Enriching CRM records with discovered technology stack informationnot Stylus
  • Identifying timing signals from prospect infrastructure changesnot Stylus

Where each one falls short

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

Stylus

  • Crashes and instability when applying certain styles
  • No visual element selector tool for identifying page elements to style
  • Security risk if downloading and applying untrusted user-created styles

Wappalyzer

  • Cannot detect server-side or hidden technologies without client-side footprints
  • Went closed-source in 2023; self-hosting now difficult without maintaining community forks
  • Data export features locked to Business plan ($450/month) minimum

Pricing, plan by plan

Stylus

Free
  • FreeFree
    • Custom CSS
    • Style library
    • Style editor

Wappalyzer

Free

No published plan breakdown. See the Wappalyzer review.

Which should you pick?

Choose Stylus if

  • You need custom css injection.
  • You want to start without paying.
  • You work on Chrome, Firefox, Edge, Opera.
  • You also want style management.
Stylus review

Choose Wappalyzer if

  • You need technology detection.
  • You want to start without paying.
  • You work on Chrome, Firefox, Edge, Web.
  • You also want cms identification.
Wappalyzer review

Questions people ask

Is Stylus or Wappalyzer better?
Neither clearly leads. Stylus starts at Free and Wappalyzer at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Stylus or Wappalyzer?
Stylus starts at Free and Wappalyzer at Free.
Does Stylus or Wappalyzer run on more platforms?
Stylus runs on Chrome, Firefox, Edge, Opera. Wappalyzer runs on Chrome, Firefox, Edge, Web.
Can I use Stylus for free?
Both have a free tier, so you can try either at no cost before committing.
What is Stylus best used for?
Stylus is most often used for customizing website appearance with community-created css themes, writing personal style overrides for specific websites, managing multiple styles across different websites automatically, searching and installing user-styles for current websites. Of those, customizing website appearance with community-created css themes and writing personal style overrides for specific websites are not what Wappalyzer is typically brought in for.
What can Stylus do that Wappalyzer cannot?
Stylus covers Custom CSS injection, Style management, userstyles.world integration, Built-in editor. Wappalyzer covers Technology detection, CMS identification, Framework analysis, Analytics tracking. Both handle Chrome support, Firefox support, Edge support.

Answered from the vendors’ own pages

Stylus: Is Stylus free?

Yes. Stylus is completely free and open-source, available for Chrome, Firefox, Edge, and Opera browsers.

Source
Wappalyzer: Does Wappalyzer have a free version?

Yes. Wappalyzer's browser extension is completely free and provides unlimited technology lookups with no account required. The free tier includes basic website technology detection across all categories.

Source
Stylus: Can I use Stylus to change the browser UI?

No. Due to WebExtensions security restrictions, Stylus can only customize website pages, not the browser interface itself.

Source
Wappalyzer: What are the paid pricing tiers for Wappalyzer?

Wappalyzer's paid plans start at $250/month for Pro (5,000 lookups, 1 user), $450/month for Business (20,000 lookups, 5 users, API access), and $850+/month for Enterprise (200,000+ lookups, 25+ users). Annual billing offers 17% discount.

Source
Stylus: What CSS pre-processors does Stylus support?

Stylus supports CSS, LESS, and Stylus syntax with built-in linting using Stylelint and CSSLint-mod with customizable rules.

Source
Wappalyzer: Can Wappalyzer detect all website technologies?

Wappalyzer detects over 1,000 technologies but cannot detect server-side or hidden technologies, backend infrastructure, internal databases, or ERP systems with no client-side footprint.

Source
Wappalyzer: Can Wappalyzer be self-hosted?

Wappalyzer went closed-source in 2023 when the GitHub repository was taken down. It can be deployed via Docker or npm, but the community-contributed fingerprint database is now part of the commercial product. Open-source forks are available but not officially maintained.

Source
Wappalyzer: What integrations does Wappalyzer offer?

Wappalyzer integrates with CRM systems like Salesforce and HubSpot, and supports lead list exports and API access for business users on paid plans.

Source
Wappalyzer: When does Wappalyzer data export become available?

Data export and lead list generation features are only available on the Business plan ($450/month) and above, not on the Pro tier.

Source
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