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Blockyctrld
Free

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

 Free

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

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

Checked September 22, 2026

Checked September 24, 2026

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