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personalDNSfilterQuad9 Connect
Free

Free to download.

 Free

Free and open source; the Quad9 DNS service is also free.

Windows, macOS, Linux, Android Android
  • Works on Android with or without the VPN slot
  • Supports DNS over HTTPS and DNS over TLS
  • Official app from Quad9
  • Works on Android and ChromeOS
  • Desktop use needs Java
  • Filters by domain only, not page content
  • Tied to the Quad9 DNS service
  • No iOS or desktop version
Downloadable app Downloadable app
Open source Open source
License not stated License: AGPL-3.0-or-later
No account needed Not stated if an account is needed
Not stated if it works offline Needs internet

Checked September 23, 2026

Checked October 2, 2026

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