Compare software

ctrldBlocky
Free

The proxy is free; Control D's filtering service is a separate product.

 Free

The open-source software is available without a license fee. Hosting, hardware and…

Windows, macOS, Linux, Self-hosted, Command line Windows, macOS, Linux, Self-hosted, Command line
  • Forwards queries to encrypted DNS upstreams
  • Split-horizon and policy-based routing of queries
  • One small binary with no database, ideal for containers and small boards
  • Per-client and per-group blocking rules, with encrypted upstream resolvers
  • Configuration is file-based and aimed at technical users
  • Most documented use centres on Control D's own service
  • Configuration is YAML only; there is no built-in administration interface
Downloadable app, Self-hosted Self-hosted
Open source Open source
License not stated License: Apache-2.0
No account needed Not stated if an account is needed
Not stated if it works offline Not stated if it works offline

Checked September 24, 2026

Checked September 22, 2026

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