Best Website Blocker for Focus: Compared by Lock Strength

No blocker is best for everyone, so compare them on one question: what stays blocked when you decide you want the site back? Browser extensions are easiest to switch off. SelfControl, Cold Turkey, Freedom and Focus keep a locked session running until it ends. Pick by your platform first, then by how strict you need it.

How do the blockers compare?

Prices were checked on the official pages on 02/11/2026.

Blocker	Platforms	Price	Hard to undo?	Limits
SelfControl	Mac	Free, open source	Yes: a running block can’t be ended early, even by restarting or deleting the app	No scheduling or app blocking
Cold Turkey Blocker	Windows, macOS	Free plan; Pro one-time, €39.00 as shown from Europe	Yes, once locked (Pro)	Pro needed for apps and schedules; extensions installed in browsers
Freedom	Mac, Windows, iOS, Android, Chromebook	Free plan; Premium $3.33/month billed yearly, $8.99 monthly, or $99.50 lifetime (listed at 50% off $199)	Yes, with Locked Mode (Premium)	Locks and scheduling need Premium
Focus	Mac	$49 (one year of updates) or $129 lifetime	Yes, locked sessions	Mac only
LeechBlock NG	Firefox, Chrome, Edge, other Chromium browsers	Free	No: an extension	One browser; protect with a password
BlockSite	Chrome, Safari, Edge, iOS, Android, desktop app	Premium shown at $23.94 on 02/11/2026, period not stated	Partly: password protection	Pricing page does not say which features are Premium-only
Browwwser	macOS 12+, Windows 10/11	$99/year or $199 once, 7-day trial	Yes: lock mode with recovery password	Mac and Windows only; blocks sites only inside Browwwser

Which blocker is best for a Mac?

SelfControl is the free choice: pick sites, set a timer, click Start. Per its site, you can’t access them until the timer expires even if you restart or delete the app. It has no schedule and no app blocking.

Focus blocks websites in all popular browsers and distracting apps, and schedules daily, weekly or weekend plans. Locked sessions can’t be ended once started. It is Mac only: $49 or $129 for lifetime updates.

Freedom covers every device you own from one account and the free plan includes custom blocklists. Scheduling, recurring sessions and Locked Mode are Premium. It is the pick if the phone is the problem too.

Browwwser takes a different route: it is a Chromium-based Mac browser with blocking built in. A blocked site doesn’t load, there is no extension to disable, and lock mode puts the blocklist behind a recovery password with no unlock button or timer. You can block apps too, and a one-click group closes Safari, Chrome and other browsers while blocking is on. It fits if you’ll use it as your browser. It only blocks websites inside Browwwser, and it is paid after the trial (pricing). Details in the browser comparison.

Which blocker is best for Windows or a PC?

Cold Turkey is the most common choice: the free plan blocks websites with timed blocks, and Pro adds app blocking, scheduled blocks, an application password and all locking features. One Pro licence works on Windows and macOS on computers you personally use, and the page says it doesn’t support Linux, ChromeOS, Android or iOS.

Freedom also supports Windows. See best website blockers for Windows for the PC-only ranking.

Which blocker is best for Chrome or another browser?

LeechBlock NG is free and flexible: up to 30 sets of blocked sites with their own times, time limits, lockdown for a set duration and a password or random access code. BlockSite adds keyword blocking, password protection and a block page, with Chrome, Safari and Edge extensions plus phone apps. Either is easy to uninstall from the extensions page, so they suit a nudge more than a lock. How to block websites on Chrome covers Chrome-specific options, including policies.

How do you choose?

• Free and strict, on a Mac: SelfControl.
• Windows and Mac, one purchase: Cold Turkey Pro.
• Phone, tablet and computer together: Freedom.
• Mac, with schedules and apps: Focus, or Browwwser if you want the blocking inside your browser.
• Just a nudge in one browser: LeechBlock NG or BlockSite.

Before paying, check how you’d switch each one off on a bad afternoon. If it takes two clicks, it will not stop you. For methods that need no app, read how to block websites on Mac; for tools beyond blocking, the best focus apps for Mac.

Frequently asked questions

What is the best free website blocker?

SelfControl on a Mac and LeechBlock NG as a browser extension are both free. Cold Turkey and Freedom also have free plans, with the stricter features (locks, scheduling) in the paid tier.

What is the best website blocker for Chrome?

A Chrome extension is quickest, with LeechBlock NG as the free option. If you tend to switch the extension off, use a system-wide app such as Cold Turkey or Freedom, which blocks in every browser.

What is the best website blocker for Mac?

For a free locked block, SelfControl. For scheduling and apps, Cold Turkey Pro, Freedom or Focus. Browwwser is a Mac browser with blocking built in, if you will use it as your browser.

Which blocker is hardest to bypass?

A blocker that runs outside the browser and stays locked until a timer ends: SelfControl, a locked Cold Turkey block or a Freedom locked session. Browser extensions are the easiest to remove.

Is a website blocker worth paying for?

Only if the free ones stop working when you want them to. The paid tiers add locks, scheduling and app blocking; a one-time purchase can be cheaper than a yearly plan.