Website Blocker & Focus Timer
Sitefence blocks the websites that pull you away from your work, on desktop Chrome. No account, no sign-up — install it and start blocking. The free version covers up to 2,000 sites.
Screenshot — the block page shown when a blocked site is opened.
The problem
A quick check of a feed or a video site turns into half an hour before you notice. Willpower alone is a weak tool against sites designed to keep you scrolling. Sitefence puts a fence between you and the sites you chose to block, so staying on task does not depend on resisting temptation every single time.
Block a whole site, a specific path, or any page whose address contains a keyword you choose.
Set the hours when your blocks apply, so evenings and weekends stay yours without changing settings.
Timed work sessions with a built-in Pomodoro timer, for when you want to focus for a set stretch and then stop.
Screenshots
Screenshots from Sitefence in desktop Chrome.
Block page — what you see when a blocked site is opened.
Toolbar popup — block the site you are on in one click.
Block list — your blocked sites with familiar site icons.
Scheduled blocking and focus mode.
Block by category and Lockdown.
Free & Pro
The free version covers everyday blocking, including up to 2,000 sites. Pro adds password protection, custom block pages, daily time limits, browsing statistics, block by category, Lockdown, and Only-allow mode. Full details on the pricing page.
Block websites, paths, and keywords. No 3-site limit — block up to 2,000 sites for free. Scheduled blocking, focus mode with a Pomodoro timer, one-click blocking from the toolbar or the right-click menu, and familiar site icons in your block list.
Some features need Sitefence Pro (paid). Prices are on the pricing page. Password protection — treat it as a speed bump, not a security lock. Custom block pages, or redirect to a different URL when you hit a blocked site. Daily time limits for individual sites. Browsing statistics, stored on your own machine only. Block by category: Social, Video, Shopping, News, Games. The Adult category is labeled Beta and may over-block. Lockdown: a promise to yourself. Uninstalling the extension removes it. Only-allow mode: only the sites you allow will open.
No account registration. The free version makes no network requests at all. If you activate Sitefence Pro, the extension contacts our license server (lukaslabs.top) to check your license key: when you activate, about once a day, and when you deactivate. It sends the license key and a random device number, nothing else. It never sends the sites you block or visit. Statistics stay on your own machine only. See our Privacy Policy.
Platform
Sitefence works on desktop Chrome. Phones and tablets are not supported, and there is no cross-device sync. Sitefence never stops you from removing it.
Questions
No. There is no account registration and no sign-up — install it and start blocking.
Desktop Chrome only. Phones and tablets are not supported.
On the free version, nothing — the free version makes no network requests at all. If you activate Pro, the extension sends only your license key and a random device number to our license server to check the key. It never sends the sites you block or visit. See our Privacy Policy.
Sitefence never stops you from removing it. Uninstalling the extension removes it, including Lockdown.
Every Pro purchase is covered by a 14-day, no-questions-asked refund. See the Refund Policy.
Sitefence is available now on the Chrome Web Store, free. Sitefence Pro is on sale on the pricing page.