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Software · head to head

SimilarWeb vs Web Developer

S

SimilarWeb

Software

Website traffic and competitive analysis

From
Free
Rated
-
Full reviewWebsite
Web Developer logo

Web Developer

Software

Web developer toolbar for browsers

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: SimilarWeb browser extension data accuracy is lower than full platform; Web Developer the Web Developer browser extension is licensed GPL-3.0 per its GitHub repository (github.com/chrispederick/web-developer), which states 'All files are distributed for free under the terms of the GNU General Public License,' confirming it has no vendor pricing model to compare.
  • They diverge on capability: SimilarWeb covers Traffic analytics, Web Developer covers CSS inspection.

Where they differ

Only the attributes on which SimilarWeb and Web Developer actually diverge.

Attributes where SimilarWeb and Web Developer differ
AttributeSimilarWebWeb Developer
Pricing modelfreemiumfree
PlatformsWeb, Browser ExtensionChrome, Firefox, Edge, Opera
Founded20072003

Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated), category (Unknown).

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 SimilarWeb

  • Traffic analytics
  • Audience insights
  • Competitor research
  • Industry analysis

Only in Web Developer

  • CSS inspection
  • Form debugging
  • Image analysis
  • Element outlining
  • Opera support

Both cover

  • Chrome support
  • Firefox support
  • Edge support

Where each one falls short

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

SimilarWeb

  • Browser extension data accuracy is lower than full platform
  • Full platform pricing is not transparent and requires quote-based inquiry

Web Developer

  • The Web Developer browser extension is licensed GPL-3.0 per its GitHub repository (github.com/chrispederick/web-developer), which states 'All files are distributed for free under the terms of the GNU General Public License,' confirming it has no vendor pricing model to compare.

Pricing, plan by plan

SimilarWeb

Free
  • FreeFree
    • Traffic overview
    • Engagement metrics
    • Similar sites

Web Developer

Free
  • FreeFree
    • CSS tools
    • Form tools
    • Image tools

Which should you pick?

Choose SimilarWeb if

  • You need traffic analytics.
  • You want to start without paying.
  • You work on Web, Browser Extension.
  • You also want audience insights.
SimilarWeb review

Choose Web Developer if

  • You need css inspection.
  • You want to start without paying.
  • You work on Chrome, Firefox, Edge, Opera.
  • You also want form debugging.
Web Developer review

Questions people ask

Is SimilarWeb or Web Developer better?
Neither clearly leads. SimilarWeb starts at Free and Web Developer at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, SimilarWeb or Web Developer?
SimilarWeb starts at Free and Web Developer at Free.
Does SimilarWeb or Web Developer run on more platforms?
SimilarWeb runs on Web, Browser Extension. Web Developer runs on Chrome, Firefox, Edge, Opera.
Can I use SimilarWeb for free?
Both have a free tier, so you can try either at no cost before committing.
What can SimilarWeb do that Web Developer cannot?
SimilarWeb covers Traffic analytics, Audience insights, Competitor research, Industry analysis. Web Developer covers CSS inspection, Form debugging, Image analysis, Element outlining. Both handle Chrome support, Firefox support, Edge support.

Answered from the vendors’ own pages

SimilarWeb: Is the SimilarWeb browser extension free?

Yes. The SimilarWeb browser extension is completely free to install and use with no paid tiers and no credit card required.

Source
SimilarWeb: How many websites does SimilarWeb cover?

SimilarWeb provides access to intelligence from 1B+ websites and 8M apps, tracks 5B search terms and 250M display ads across 190 countries and 210 industries.

Source
SimilarWeb: How accurate is SimilarWeb extension data?

Browser extension data accuracy is lower than the full platform, but it is adequate for ballpark figures of traffic estimates.

Source
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Related pages

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