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Browser Extensions · head to head

AdBlock Plus vs Web Developer

AdBlock Plus logo

AdBlock Plus

Browser Extensions

The world's most popular ad blocker

From
Free
Rated
-
Full reviewWebsite
Web Developer logo

Web Developer

Browser Extensions

Web developer toolbar for browsers

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: AdBlock Plus acceptable Ads allowlist model generates controversy over ad filtering conflicts of interest; 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: AdBlock Plus covers Ad blocking, Web Developer covers CSS inspection.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which AdBlock Plus and Web Developer actually diverge.

Attributes where AdBlock Plus and Web Developer differ
AttributeAdBlock PlusWeb Developer
PlatformsChrome, Edge, Firefox, Opera, Safari, Yandex BrowserChrome, Firefox, Edge, Opera
Founded20062003

Identical on both: starting price (Free), pricing model (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 AdBlock Plus

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

Only in Web Developer

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

Both cover

  • Chrome support
  • Firefox support
  • Edge support
  • Opera support

What people use each for

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

AdBlock Plus

  • Ad blocking for display ads, video advertisements including YouTube pre-roll/mid-roll/post-roll, pop-ups, flashing banners, and overlay adsnot Web Developer
  • Performance enhancement by eliminating ad content to accelerate page load times and reduce data and battery consumption on mobile devicesnot Web Developer
  • Security and privacy protection by blocking malware-infected ads (malvertising), preventing tracking by companies monitoring user behavior, and stopping access to malware-distributing sitesnot Web Developer
  • Supports web browsers including Chrome, Firefox, Edge, Opera, and Safari, as well as iOS Safari and Android devicesnot Web Developer

Web Developer

No use cases recorded yet. See the Web Developer review.

Where each one falls short

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

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

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

AdBlock Plus

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

Web Developer

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

Which should you pick?

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

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 AdBlock Plus or Web Developer better?
Neither clearly leads. AdBlock Plus 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, AdBlock Plus or Web Developer?
AdBlock Plus starts at Free and Web Developer at Free.
Does AdBlock Plus or Web Developer run on more platforms?
AdBlock Plus runs on Chrome, Edge, Firefox, Opera, Safari, Yandex Browser. Web Developer runs on Chrome, Firefox, Edge, Opera.
Can I use AdBlock Plus for free?
Both have a free tier, so you can try either at no cost before committing.
What is AdBlock Plus best used for?
AdBlock Plus is most often used for ad blocking for display ads, video advertisements including youtube pre-roll/mid-roll/post-roll, pop-ups, flashing banners, and overlay ads, performance enhancement by eliminating ad content to accelerate page load times and reduce data and battery consumption on mobile devices, security and privacy protection by blocking malware-infected ads (malvertising), preventing tracking by companies monitoring user behavior, and stopping access to malware-distributing sites, supports web browsers including chrome, firefox, edge, opera, and safari, as well as ios safari and android devices. Of those, ad blocking for display ads, video advertisements including youtube pre-roll/mid-roll/post-roll, pop-ups, flashing banners, and overlay ads and performance enhancement by eliminating ad content to accelerate page load times and reduce data and battery consumption on mobile devices are not what Web Developer is typically brought in for.
What can AdBlock Plus do that Web Developer cannot?
AdBlock Plus covers Ad blocking, Acceptable Ads, Custom filters, Social media blocking. Web Developer covers CSS inspection, Form debugging, Image analysis, Element outlining. Both handle Chrome support, Firefox support, Edge support, Opera 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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