Compare software

Quad9CleanBrowsing
Free

The public resolvers are free to use.

 Freemium

Free family filters, with paid plans for more control.

Windows, macOS, Linux, Android, iOS Web
  • Malicious domain blocking with no configuration and no account
  • Non-profit, Swiss-based, with a published no-client-IP-logging policy
  • Blocks malware, phishing and botnet domains
  • Adult content blocking and enforced Safe Search
  • Blocking is security-focused only; it does not block advertising
  • No per-device customisation on the free public resolvers
  • DNS queries are sent to a third-party service
  • DNS filtering can be bypassed by changing a device's DNS settings
Hosted service Hosted service
Closed source Closed source
License not stated License not stated
Not stated if an account is needed Not stated if an account is needed
Not stated if it works offline Needs internet

Checked September 22, 2026

Checked September 23, 2026

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