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AdGuard Browser Extension vs 1Blocker: catalog facts
AdGuard Browser Extension	1Blocker
Free The browser extension is free to install.	Freemium Free tier available; full feature set requires a subscription.
Browser extension	macOS, iOS, Browser extension
Blocks ads, pop-ups and trackers Cosmetic filtering hides leftover page elements	Blocking happens on-device rather than through a proxy server Large built-in rule set with granular customization
Only filters inside the browser, not other apps System-wide filtering requires AdGuard's separate apps	Limited to Safari rather than all browsers Full rule customization requires the paid tier
Browser extension	Downloadable app, Browser extension
Open source	Closed source
License: GPL-3.0	License not stated
Not stated if an account is 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 22, 2026

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