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JSON Viewer vs AdBlock Plus

JSON Viewer logo

JSON Viewer

Software

View JSON documents in the browser

From
Free
Rated
-
Full reviewWebsite
AdBlock Plus logo

AdBlock Plus

Software

The world's most popular ad blocker

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: JSON Viewer the project is MIT licensed open source code hosted on GitHub with no vendor and no paid tier; AdBlock Plus acceptable Ads allowlist model generates controversy over ad filtering conflicts of interest
  • They diverge on capability: JSON Viewer covers JSON formatting, AdBlock Plus covers Ad blocking.

Where they differ

Only the attributes on which JSON Viewer and AdBlock Plus actually diverge.

Attributes where JSON Viewer and AdBlock Plus differ
AttributeJSON ViewerAdBlock Plus
PlatformsChrome, Firefox, EdgeChrome, Edge, Firefox, Opera, Safari, Yandex Browser
Founded20152006

Identical on both: starting price (Free), pricing model (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 JSON Viewer

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

Only in AdBlock Plus

  • Ad blocking
  • Acceptable Ads
  • Custom filters
  • Social media blocking
  • Safari support
  • 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.

JSON Viewer

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

AdBlock Plus

  • Acceptable Ads allowlist model generates controversy over ad filtering conflicts of interest
  • Smaller feature set compared to open-source alternatives like uBlock Origin
  • Less customization and dynamic filtering compared to uBlock Origin
  • Mobile version less comprehensive than desktop extension
  • Chrome version increasingly limited due to Manifest V3 migration

Pricing, plan by plan

JSON Viewer

Free
  • FreeFree
    • Syntax highlighting
    • Collapsible tree
    • Search

AdBlock Plus

Free
  • FreeFree
    • Ad blocking
    • Acceptable Ads option
    • Custom filters

Which should you pick?

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

Choose AdBlock Plus if

  • You need ad blocking.
  • You want to start without paying.
  • You work on Chrome, Edge, Firefox, Opera, Safari, Yandex Browser.
  • You also want acceptable ads.
AdBlock Plus review

Questions people ask

Is JSON Viewer or AdBlock Plus better?
Neither clearly leads. JSON Viewer starts at Free and AdBlock Plus at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, JSON Viewer or AdBlock Plus?
JSON Viewer starts at Free and AdBlock Plus at Free.
Does JSON Viewer or AdBlock Plus run on more platforms?
JSON Viewer runs on Chrome, Firefox, Edge. AdBlock Plus runs on Chrome, Edge, Firefox, Opera, Safari, Yandex Browser.
Can I use JSON Viewer for free?
Both have a free tier, so you can try either at no cost before committing.
What can JSON Viewer do that AdBlock Plus cannot?
JSON Viewer covers JSON formatting, Syntax highlighting, Tree view, Search functionality. AdBlock Plus covers Ad blocking, Acceptable Ads, Custom filters, Social media blocking. Both handle Chrome support, Firefox support, Edge support.

Answered from the vendors’ own pages

AdBlock Plus: What does Adblock Plus block?

Adblock Plus blocks banner ads, pre-roll and mid-roll video ads on YouTube, pop-ups, sidebar ads, and most standard display formats. With Acceptable Ads disabled and EasyPrivacy enabled, it achieved a 100/100 score on AdBlock Tester in April 2026.

Source
AdBlock Plus: What browsers does Adblock Plus support?

Adblock Plus is available for Chrome, Edge, Firefox, Opera, Safari, and Yandex Browser.

Source
AdBlock Plus: Is there a premium version of Adblock Plus?

Yes. Adblock Plus Premium costs $40 annually or $4 per month and allows users to block cookie consent pop-ups, while the free version includes core ad blocking.

Source
AdBlock Plus: What is Acceptable Ads?

Acceptable Ads is an opt-in setting that allows advertising Adblock Plus deems unobtrusive to display on websites; it is disabled by default but can be toggled in Settings.

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Related pages

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