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Adblock Plus vs AdGuard Browser Extension: catalog facts
Adblock Plus	AdGuard Browser Extension
Free Free and open source under GPLv3 or later.	Free The browser extension is free to install.
iOS, Browser extension	Browser extension
Available for all major desktop browsers Customizable filter lists	Blocks ads, pop-ups and trackers Cosmetic filtering hides leftover page elements
The homepage leans on marketing claims rather than technical detail Separate apps are needed for mobile browsers	Only filters inside the browser, not other apps System-wide filtering requires AdGuard's separate apps
Downloadable app, Browser extension	Browser extension
Open source	Open source
License: GPL-3.0-or-later	License: GPL-3.0
No account needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 23, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.