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Cold Turkey BlockerSelfControl
Freemium

Free website blocker, with a paid upgrade for more features.

 Free

Free and open source, supported by donations.

Windows, macOS macOS
  • Blocks desktop apps as well as websites
  • Locked blocks that are hard to bypass
  • Block cannot be undone until the timer expires
  • Survives restarts and deleting the app
  • Desktop only, no phone apps
  • Some features require the paid version
  • macOS only
  • No way to end a block early if you set it wrongly
Downloadable app Downloadable app
Closed source Open source
License not stated License not stated
Not stated if an account is needed No account needed
Not stated if it works offline Works offline

Checked September 23, 2026

Checked October 1, 2026

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