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Adblock Fast vs adblock-lean: catalog facts
Adblock Fast	adblock-lean
Free Free and open source.	Free Free to download and use.
Self-hosted	Linux, Command line
Very low memory use on small routers Works with several DNS resolvers	Runs directly on the router, no extra hardware Supports Hagezi blocklists and local lists
Requires a router running OpenWrt Small project with a limited user base	Only works on OpenWrt Configured from the router shell rather than a web interface
Self-hosted	Downloadable app
Open source	Closed source
License: AGPL-3.0	License not stated
No account needed	No account needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 24, 2026	Official website Full listing and sources Checked October 2, 2026

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