Site Blocker - Block Site & Focus Mode

The best free site blocker. Block websites, stay focused with website blocker. Set custom blocklist and password protection.

Site Blocker - Block Sites & Improve Focus | Chrome Extension

Site Blocker - Block Site & Focus Mode is a Chrome extension designed to enhance productivity by blocking undesired websites and limiting internet usage. Features include setting up a custom blocklist, password protection, and a Focus Mode that applies the Pomodoro Technique for better time management. Parents can also use the site blocker for their children's internet controls. Remember to enable 'Allow run in incognito mode' for blocking sites in the incognito mode.
Install from Chrome Web Store

Extension stats

Manifest V3
Users: 1,000,000+
Version: 1.0.4 (Last updated: 2025-02-23)
Creation date: 2023-02-13
Permissions:
  • alarms
  • favicon
  • contextMenus
  • notifications
  • tabs
  • storage
  • unlimitedStorage
  • offscreen
Host permissions:
  • *:\/\/*\/*
Size: 64.43M
Full description: See detailed description

Other platforms

Not available on Android
Not available on Firefox
Not available on Edge

User reviews

These summaries are automatically generated weekly using AI based on recent user reviews. Chrome Web Store does not verify user reviews, so some user reviews may be inaccurate, spammy, or outdated.
Pros
  • Easy to use
  • Effective at blocking distracting websites
  • Simplicity of design
  • Fast and user-friendly functionality
Cons
  • Focus Mode does not work properly for some users
  • Certain sites can still get through after being blocked
  • No clear way to manage allowed sites in Focus Mode
  • Users want additional features like the ability to block all sites except a few
Most mentioned
  • Focus Mode issues
  • General effectiveness in blocking sites
  • Simplicity and ease of use
User reviews
Very quick and clean.
by Maximus Hsu, 2025-03-09

Fine, have 5 stars already! (But seriously, its so much cleaner than StayFocusd!)
by Richard Poole, 2025-03-09

Helps me stay focused
by Angel Ellison, 2025-03-08
View all user reviews

Extension safety

Risk impact

Site Blocker - Block Site & Focus Mode requires a few sensitive permissions. Exercise caution before installing.

Risk impact analysis details
  • Critical Grants access to browser tabs, which can be used to track user browsing habits and history, presenting a privacy concern.
  • High ******* ******* **** *** ****** ***** *** ***** ** ******* **** ********* ********* ** * *********** *****
  • Medium ******* ******* ************* ***** *** ** ******* *** **** ******* ****** ******** *******
  • Low ****** ** ******* ***** *** ** ********** ******** ******* **** **** *****
  • Low ******* ****** ** *** ********* ********
Risk likelihood

We don't have sufficient data to confidently determine the risk likelihood of Site Blocker - Block Site & Focus Mode. Use it at your own risk.

Risk likelihood analysis details
  • High This extension was recently updated in the past month. New updates may not be stable or safe.
  • Medium **** ********* *** ****** **** ****** ********* ********** *** *** ** ****** ** *****
  • Low **** ********* *** ***** **** **** * ****** **** ***** ********** *** **** ****** ** ** ****** *** *****
  • Good **** ********* ********* ** * ******* ********* ** ****** *** *****
  • Good **** ********* *** **** **** *******
Upgrade to see full risk analysis details

Promo images

Site Blocker - Block Site & Focus Mode marquee promo image
Marquee promo image
Site Blocker - Block Site & Focus Mode small promo image
Small promo image

Similar extensions

Here are some Chrome extensions that are similar to Site Blocker - Block Site & Focus Mode: