How does Blocker stop a site or app from opening?

Sites get dropped at a small proxy that runs on your Mac itself, so the page won’t load in any browser. Apps are watched by a small helper: when one on your blocklist tries to launch, it gets hidden and closed on the spot.

Does it work in Safari, Chrome, Firefox, Arc?

Yes, all of them. You don’t add anything inside the browser. Even if you open a new browser tomorrow, the same sites are still off there.

Will it slow down my Mac?

No. Blocker stays out of the way. It doesn’t watch what you do or use much memory or battery.

Can I turn off a site or app for just one hour?

Yes. Tap Block now and pick a length: one hour, two, four, eight, your own time, or until you stop it. When the time’s up, the sites and apps come back by themselves.

What if I need a quick break?

Tap Pause for 5, 15, or 60 minutes. The site or app stays available during that time. After that, it’s off again, or you can turn it back off early.

What about other versions of the same site, like m.youtube.com?

When you add a domain, all versions and subdomains are blocked too.

Which Mac apps can I block, and what happens when one is blocked?

Anything in /Applications: Notion, ChatGPT, WhatsApp, Slack, games, anything. Blocker matches apps by their bundle ID, so updates and renames keep working. When a blocked app tries to launch, Blocker hides it and closes it on the spot. Nothing destructive: no files touched, no data lost. It just doesn’t stay open while a schedule is on.

Do I need an account? Does it need the internet?

No on both. No sign-up. Nothing about you leaves your Mac. The app works without the internet.

Does it need my Mac password or any setup?

No. There’s nothing to set up. Blocker doesn’t ask for your password and doesn’t install anything deep in the system. The only thing it may ask for is permission to send notifications, so it can tell you when a schedule starts or ends. You can say no and it still works.

How is this different from Screen Time or a browser add-on?

Screen Time can block apps but is awkward to schedule and clunky to set up. Browser add-ons only work inside one browser, and you can get around them by opening a different one. Blocker covers every browser plus Mac apps in one place, with a fast schedule UI you’ll actually use.

Is there a free version?

There’s a 7-day free trial with everything turned on. After that the app stops blocking until you buy a licence. You only pay if you decide to keep it.

Turn off what wastes your time.

Pick the sites and apps that distract you. Block them on a schedule, or turn them off right now with one tap.

Try free for 7 days See how it works

$ brew install --cask leo-mathurin/blocker/blocker

Free for 7 days · macOS only · No sign-up, no card

Blocking 3 of 3 sites

viaDeep Work

youtube.comActiveDeep Work

instagram.comActiveDeep Work

x.comActiveDeep Work

Quick add

How it works

Three steps. Then you forget it’s there.

Pick what to block

Add the sites or apps that pull you in. One tap each.

Choose when

Set weekly hours, or turn them off for a few hours right now.

They stop opening

Same in every browser. Apps don’t launch. Pause anytime.

One block.
Every browser. Every app.

Browsers and Mac apps, side by side

Safari, Chrome, Firefox, Arc. Sites stop opening in all of them at the same time. Mac apps too: Notion, ChatGPT, WhatsApp, anything in /Applications stays closed on schedule.

Browsers

+ any other

Mac apps

+ any app

Times that repeat each week

Set hours like Monday to Friday, 9 to 5. Or every night from 10 to 7. You set it once. It runs on its own.

Block now

Need quiet right now? Tap once and pick how long: one hour, two, four, eight, or until you stop it.

Pause when you really need to

In a quiet hour and need a minute? Pause for 5, 15, or 60 minutes. Sites turn back off on their own.

Paused·15 min left

Stays on your Mac

No sign-up. No account. Nothing about you leaves your computer. The app works without internet.

Your Mac

Set once, forget

Once a schedule is in, you don't think about it again. Sites come and go on time, every week.

Try it free. Keep it forever.

7 days free, all features on. Pay once if you want to keep it.

Blocker

Mac app · turn off distracting sites and apps

$17.40$29one time

Launch price · 40% off, goes up soon

Turn off as many sites and apps as you want
As many weekly times as you want
Turn sites and apps off right now, for as long as you want
Pause a quiet hour whenever you need to
Same in every browser. Mac apps too.
Free updates, forever

Start 7-day free trial Or buy a licence now