Compare software

SelfControlCold Turkey Blocker
Free

Free and open source, supported by donations.

 Freemium

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

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

Checked October 1, 2026

Checked September 23, 2026

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