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Browser Extensions · head to head

BuiltWith vs JSON Viewer

BuiltWith logo

BuiltWith

Browser Extensions

See what websites are built with

From
Free
Rated
-
Full reviewWebsite
JSON Viewer logo

JSON Viewer

Browser Extensions

View JSON documents in the browser

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: BuiltWith free tier limited to individual site lookups with no features; JSON Viewer the project is MIT licensed open source code hosted on GitHub with no vendor and no paid tier
  • They diverge on capability: BuiltWith covers Technology profiling, JSON Viewer covers JSON formatting.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which BuiltWith and JSON Viewer actually diverge.

Attributes where BuiltWith and JSON Viewer differ
AttributeBuiltWithJSON Viewer
Pricing modelsubscriptionfree
PlatformsWebChrome, Firefox, Edge
Founded20072015

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 JSON Viewer

  • JSON formatting
  • Syntax highlighting
  • Tree view
  • Search functionality

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 JSON Viewer
  • Competitive analysis and lead generationnot JSON Viewer
  • Web technology tracking and reportingnot JSON Viewer

JSON Viewer

No use cases recorded yet. See the JSON Viewer review.

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

JSON Viewer

  • The project is MIT licensed open source code hosted on GitHub with no vendor and no paid tier

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

JSON Viewer

Free
  • FreeFree
    • Syntax highlighting
    • Collapsible tree
    • Search

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 JSON Viewer if

  • You need json formatting.
  • You want to start without paying.
  • You work on Chrome, Firefox, Edge.
  • You also want syntax highlighting.
JSON Viewer review

Questions people ask

Is BuiltWith or JSON Viewer better?
Neither clearly leads. BuiltWith starts at Free and JSON Viewer at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, BuiltWith or JSON Viewer?
BuiltWith starts at Free and JSON Viewer at Free.
Does BuiltWith or JSON Viewer run on more platforms?
BuiltWith runs on Web. JSON Viewer runs on Chrome, Firefox, 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 JSON Viewer is typically brought in for.
What can BuiltWith do that JSON Viewer cannot?
BuiltWith covers Technology profiling, Market research, Competitor analysis, Lead generation. JSON Viewer covers JSON formatting, Syntax highlighting, Tree view, Search functionality. 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
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
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
BuiltWith: What payment methods does BuiltWith accept?

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

Source
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