Focus

A distraction blocker that makes you explain yourself.

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Get access macOS 14+ · Claude Code · Free

Deny by default

Most blockers are toggles. Turn it on when you need to focus, turn it off when you don't. The problem is obvious: the moment you want to be distracted is the moment you turn it off.

Focus works the other way. It blocks everything and forces you to articulate why you need access. Claude creates a gap between impulse and action. You have to explain yourself — not to a timer, not to a toggle, but to an intelligence that asks follow-up questions.

Not control. Reflection.

How it works

308 domains blocked Social media, video, news, shopping, gaming, dating, gambling. DNS + firewall.
Claude as gatekeeper Request access through Claude Code. It challenges your intent before granting timed access.
Vigilant mode AI watches your screen during grants. Drift off-task 3 times and access is revoked.
Auto-reblock Every grant has a timer. On expiry: re-block, kill connections, close tabs.

The layers

1 /etc/hosts — DNS nullroute
2 pf firewall — IP-level block
3 connection kill — terminate TCP
4 browser tabs — close matching tabs
5 QUIC blocking — UDP 443 blocked