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Reviewed · Updated 2026-06-19

Privacy Badger

Privacy Badger is a free browser extension developed by the Electronic Frontier Foundation (EFF) that automatically detects.

Reviewed by the Conversion Gems editorial team ·
Try Privacy
Pricing
Free
Best for
Individuals concerned about online privacy and digital surveillance, users who want to automatically block behavioral advertising trackers, and those looking for a lightweight, list-free tracking blocker
Category
Security, Privacy & Backup
The bottom line

The gold-standard free tracker blocker for privacy-conscious users who want set-and-forget protection backed by the EFF.

7.8
Our score
7.8 / 10
Conversion Gems editorial verdict
Free (open source, no paid tiers ever)
Features7/10
7 - Algorithmic detection, GPC + DNT enforcement, canvas fingerprinting, link cleaning; not a full ad blocker and learning model is slow on rare trackers.
Value10/10
10 - Completely free with no paid tiers, no ads, no upsells; funded by nonprofit donations.
Ease of use8/10
8 - True install-and-forget; occasional false positives need a manual per-site slider adjustment.
Ecosystem7/10
7 - Chrome, Firefox (desktop + Android), Edge (desktop + Android), Opera, Brave covered; Safari still in development.
Support5/10
5 - GitHub issues and EFF community forums; no dedicated support channel or SLA.
What it really is

Privacy Badger — free EFF browser extension that algorithmically blocks behavioral trackers.

Our take

Privacy Badger is a 100% free, open-source tracker blocker from the Electronic Frontier Foundation that learns which domains spy on you across sites and blocks them — without relying solely on static lists. The DB pricing of 'Free-N/A' and 'free' tier are accurate: there are no paid tiers, no premium features, and no subscription whatsoever. It's a pure public-interest privacy tool, actively maintained in 2026 with Global Privacy Control (GPC) signal support added in recent versions.

Why we rate it

EFF's decades-long reputation in digital rights makes Privacy Badger uniquely trustworthy — it holds no ad-industry deals and its blocking decisions are transparent, user-adjustable, and verifiable in open source.

The catch

Not a full ad blocker; sites that bundle ads with first-party code may still show ads. The learning model needs browsing time to identify new or rare trackers, and it occasionally over-blocks benign third-party embeds, requiring a manual slider toggle to fix.

Best for
Privacy-first users wanting automatic, list-free tracker blocking
Open-source and EFF supporters who value transparent, auditable code
Users pairing it with an ad blocker for layered privacy protection
Not good for
Users wanting complete ad removal (uBlock Origin is better)
High-risk users needing advanced anonymity (use Tor Browser)
Enterprise or managed browser deployments requiring central policy controls
Friction report
Time to value
Fast: one-click install; blocking starts immediately with no configuration required.
Scale breakpoint
N/A — single-user browser extension; no multi-seat or team concept; each user installs independently.
Walled garden
Low: fully open source; settings exportable; no account, no sign-in, no lock-in.

A look inside

Privacy Badger product screenshot

Frequently Asked Questions

Alternatives

Step up

uBlock Origin for full ad and tracker blocking with fine-grained list control.

Lighter alternative

DuckDuckGo Privacy Essentials for simpler all-in-one privacy protection in a single extension.

Ready to try Privacy Badger?
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Tags

#AdBlocker#Privacy#BrowserExtension

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