SelfControl

SelfControl is a free, open-source Mac app that blocks websites for a set period. Once started, the block cannot be removed by quitting the app, restarting your computer, or deleting the app. It's the nuclear option for Mac users who need a free, unbypassable blocker.

For Mac users who want Cold Turkey-level commitment without paying, SelfControl delivers. It's open source, free forever, and genuinely impossible to bypass once a block starts.

Every place SelfControl shows up across Choose My Stack — the research it’s part of and the articles that cover it.

The honest list