What's the best Mac app to block websites for work?

For most people, a free system-level focus app is the best fit. Focuh blocks distracting sites across every browser during a work session, pairs the block with a timer and task board, and uses macOS Accessibility APIs that make it hard to bypass mid-session. Cold Turkey and SelfControl are also strong for hard blocking. The key is that a work blocker covers all browsers and native apps, not just one browser, since that's where workday distraction actually leaks in.

How do I block distracting websites on my Mac during work for free?

Several free routes exist. SelfControl is free, open source, and blocks across all browsers for a timer you set. Focuh is free and blocks distracting sites at the system level during a work session, with a focus timer and task board around it. macOS Screen Time blocks sites too, but only in Safari. You don't need to pay to block websites for work — free tools cover the core blocking, and paid apps mainly add cross-platform sync or stricter lockdown.

Is a Mac app better than a Chrome extension for blocking work distractions?

For work, usually yes. A Chrome extension only blocks tabs in Chrome, so switching to Safari or opening a desktop app like Slack gets around it, and it's easy to disable. A Mac app blocks across every browser and native app and is harder to switch off mid-session. If your whole workday lives in one browser, an extension can be enough, but a system-level app removes the easy escape routes that derail focused work.

Can a Mac app block apps like Slack and Messages during work, not just websites?

Yes, with a system-level app. A browser extension can only block tabs, but a Mac focus app reaches native apps too. Focuh blocks both distracting websites and apps — Slack, Messages, Discord — during a work session. That matters because a lot of work-time distraction comes from desktop apps and notifications, not just browser tabs. Only an OS-level tool can close that gap; a browser-only blocker leaves your whole app layer untouched.

How hard are these work blockers to bypass?

It varies a lot. A browser extension is easiest to disable — a few clicks. Screen Time can be lifted if you know the passcode. SelfControl is hard to stop once its timer starts, even by restarting your Mac. Focuh blocks via Accessibility APIs and is built to be hard to disable mid-session. No blocker is truly unbreakable on your own machine, but the gap between a one-click extension and a system-level app is large, and during real deep work that friction is the whole point.

Do free Mac website blockers collect my data?

The good ones don't. SelfControl is open source and runs entirely locally. Focuh stores your settings and session data on-device and ships no telemetry. Screen Time is part of macOS and stays on your machine. Always check the privacy policy, but the core free tools for blocking websites for work on a Mac don't require an account or send your browsing anywhere. That's what you want from something watching how you spend your workday.

Should I block websites all day or just during focus sessions?

Session-based blocking fits most jobs better. Blocking all day is blunt — you'll need some 'distracting' sites for legitimate work, and an always-on block invites you to disable it permanently. Tying the block to a focus session means distractions are gone while you're in deep work and available between sessions. Focuh works this way: start a session, sites and apps are blocked until it ends. That keeps the block honest without fighting your actual work.

What's the best Mac app to block websites for work if I also have ADHD?

A blocker that pairs hard blocking with visible structure helps most. Focuh was designed with ADHD in mind: it blocks sites and apps at the system level, shows a visual focus timer, and uses a kanban task board so what you're working on stays in front of you. The block removes the pull, and the timer and tasks externalize the plan. For ADHD workdays, that combination tends to hold better than a silent blocker with no scaffolding around it.

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Best Mac App to Block Websites for Work (2026)

June 18, 202610 min readFocuh

The hardest part of focused work on a Mac isn't motivation — it's that the same machine holds your real work and every distraction you own, one Cmd-Tab apart. The best Mac app to block websites for work is one that blocks across every browser and native app during a work session, not just one browser, and that's hard enough to bypass that you don't quietly switch it off mid-afternoon. This guide compares the strongest options for 2026 — Focuh, Cold Turkey, SelfControl, and Freedom — on what they cost, how well they actually block, and how they fit a real workday.

What makes a good work blocker on Mac?

Three things separate a blocker that protects your workday from one you uninstall by Friday.

It covers every browser and native apps. Work distraction doesn't politely stay in Chrome. You switch to Safari, you open the desktop Slack app, you check a menu-bar client. A blocker that only handles one browser leaves the side doors open.

It's session-based, not all-day. Blunt all-day blocking fights your actual work, since you usually need some "distracting" sites for legitimate tasks. Tying the block to a focus session keeps distractions gone during deep work and available between sessions.

It's hard to disable mid-session. The whole value of a work blocker is the friction it adds in the moment you reach for the distraction. If turning it off is two clicks, it won't survive a bad afternoon.

The best Mac apps to block websites for work, compared

App	Price	Blocks all browsers	Blocks native apps	Hard to bypass	Best for
Focuh	Free	Yes	Yes	High	Free session-based work blocking + timer and tasks
Cold Turkey	Free / paid Pro	Yes	Yes (Pro)	Very high	Strictest lockdown, scheduled blocks
SelfControl	Free	Yes	No	Very high (timer can't be stopped)	A simple, unbreakable timed block
Freedom	Paid subscription	Yes	Yes	Medium-high	Cross-device blocking (Mac + phone)

The right pick depends on what you value: free and full-featured, maximum lockdown, dead-simple, or cross-device.

What is Focuh, and who is it for?

Focuh is a free macOS app that blocks distracting websites and apps at the system level during a focus session, with a focus timer and a kanban task board built around the block. It uses macOS Accessibility APIs, so a blocked site stays blocked across Chrome, Safari, Firefox, and Arc at once, plus native apps like Slack, Messages, and Discord.

For work, the session model is the point. You start a focus session, your distractions go dark, and a menu-bar countdown keeps you honest about how long you've actually worked. When the session ends, your sites come back — no need to remember to re-enable anything. The attempt counter shows how often you reached for a blocked site, which turns blocking into visible progress rather than a silent wall.

Focuh is free with no paid tier, no account, and no telemetry — your settings and session data stay on-device. It was designed with ADHD in mind, so the visual timer and task board carry more weight than a bare blocker. The honest limit: desktop blocking is macOS-only for now, and like any blocker on your own machine, it's not unbreakable by a truly determined user.

When does Cold Turkey make sense?

Cold Turkey is the strictest blocker on this list. Its free tier blocks websites well; the paid Pro version adds app blocking, scheduling, and lockdown modes that are genuinely hard to escape — you can set a block you cannot cancel until the timer ends, even by restarting or reinstalling.

That strength is also its tradeoff. Cold Turkey is heavier to configure and the lockdown can feel punishing if you mis-set it. Choose Cold Turkey if your problem is severe and you want a wall you physically can't climb during the workday. If you want strong blocking with a lighter touch and a timer-plus-tasks workflow, Focuh fits better. For a direct comparison, see Focuh vs Cold Turkey.

Is SelfControl good enough for work?

SelfControl is free, open source, and beautifully simple: add sites to a blocklist, set a timer, hit start. Once the timer runs, those sites are blocked across every browser and there's no way to stop it — not by quitting the app, not by restarting, not by deleting it. For a lot of people, that unbreakable timer is exactly enough.

Its limits are the flip side of that simplicity. SelfControl blocks websites but not native apps, has no focus timer or task list, and the all-or-nothing timer can't be paused if you genuinely need a blocked site for work. It's a single, sharp tool. If you want blocking plus structure — a timer, tasks, an attempt counter — a focus app like Focuh does more. For the full picture, see the best website blockers for Mac.

What about Freedom?

Freedom's pitch is cross-device: block the same sites on your Mac and your phone at once, on a schedule. If your work distraction jumps between laptop and phone, that single blocklist across devices is real value, and Freedom does it smoothly.

The catch is that it's subscription-only, with no genuinely free tier beyond a short trial. For purely Mac-based work, you're paying for cross-device coverage you may not use. If your distractions live on your Mac during work hours, a free system-level app covers you without the subscription. If they genuinely span devices, Freedom earns its price.

How blocking websites for work compares to a Chrome extension

A common starting point is a Chrome extension, and for some people it's enough. But for work specifically, an extension has a hole: it only blocks Chrome. Switch to Safari, open the desktop Slack app, or check a native client, and the block is gone — and it's two clicks to disable in chrome://extensions.

A Mac app blocks at the operating-system level, across every browser and native app, and is much harder to switch off mid-session. If your whole workday lives in one browser, an extension can work; the moment it doesn't, you need OS-level blocking. For the trade-off in full, see system-level vs browser website blocking.

Which Mac work blocker should you choose?

"I want free, full-featured, session-based blocking with a timer and tasks" — Choose Focuh. It blocks every browser and native apps, costs nothing, and wraps the block in a workday structure.

"I want the strictest possible lockdown" — Choose Cold Turkey Pro. The hardest to escape, at the cost of complexity.

"I want a dead-simple unbreakable timed block" — Choose SelfControl. Free, open source, and impossible to stop once started — websites only.

"I need the same block on my Mac and my phone" — Choose Freedom, if you're willing to pay for cross-device coverage.

No Mac app fixes your focus on its own. But the best Mac app to block websites for work is the one that covers every browser and app, ties the block to your actual work sessions, and is hard enough to bypass that you leave it on. For most people doing focused work on a Mac in 2026, that's a free, system-level focus app — and you don't have to pay to get it.

Download Focuh free for Mac — system-level blocking across every browser and app, with a focus timer and task board built in.