Block the sites you already decided to quit.
Free Chrome extension. No account, no 3-site cap, no tracking. Set a duration, add the domains, let Chrome interrupt the reflex.
Truly free. Forever.
No 3-site limit. No paid tier. Block as many sites as you want, for as long as you want.
No account. No tracking.
No email, no signup, no analytics. Your blocklist stays in Chrome storage on your device.
Installs in 10 seconds.
No setup wizard. Add a domain, set a duration, start the challenge.
How it compares.
Focuh is the only free Chrome website blocker with no site cap, no account, and no tracking. BlockSite caps free users at 3 sites, StayFocusd is owned by ad-intelligence firm Sensor Tower, and Cold Turkey and Freedom are paid. Here's how the top blockers compare.
| Extension | Price | Free tier | Account | Data |
|---|---|---|---|---|
| FocuhRecommended | Free | Unlimited | No account | No tracking |
| BlockSite | $7+/mo | 3 sites | Account required | Ads & analytics |
| StayFocusd | Free | Unlimited | No account | Owned by Sensor Tower |
| LeechBlock NG | Free | 30 blocksets | No account | No tracking |
| Cold Turkey | $39 desktop | Bridge only | No account | No tracking |
| Freedom | $40/yr | 7 sessions | Account required | Account required |
Compared May 2026 · prices and free-tier limits change.
How it works.
01
Install
Add Focuh to Chrome. No account, no sign-up, no email.
02
Add the loop
Drop in the domains that keep stealing your attention. YouTube, Reddit, X — whatever yours is.
03
Run the challenge
Pick 30, 91, 180 days, or set your own. Chrome interrupts the reflex until the timer ends.
Questions.
Is Focuh really free?
Yes. Free forever, no paid tier, no trial limit, no upsells inside the extension. Block as many domains as you want, for as long as you want. The Focuh desktop app for macOS is also free.
Does it require an account?
No. No signup, no email, no login. The extension stores your blocklist and challenge dates in Chrome's local storage on your device and never sends anything to a server.
Does it collect any data?
No. No analytics, no advertising pixels, no third-party tracking, no remote code. The Privacy Policy and source confirm this.
Can it block apps on my Mac too?
A Chrome extension can only block what happens inside Chrome. To block desktop apps and other browsers system-wide on macOS, install the free Focuh desktop app — it uses macOS Accessibility APIs to block sites and apps across the whole system.
How is this different from BlockSite or StayFocusd?
BlockSite caps the free tier at 3 sites and requires an account. StayFocusd is owned by Sensor Tower, an ad-intelligence company. Focuh has no cap, no account, and no tracking — and it's built by the team behind the free Focuh desktop app.
Can I bypass a block if I really want to?
Yes — like any Chrome extension, you can disable it from chrome://extensions. The point isn't unbreakable blocking; it's interrupting the reflex enough that you notice it. For stricter, harder-to-bypass blocking, the Focuh desktop app works at the OS level.