Block sites to discourage procrastination

What is SiteBlock?
SiteBlock is a Chrome extension that aids productivity by blocking access to distracting websites. Users simply need to set a list of unwanted sites in the extension options to start filtering out distractions. The extension has continued to improve with updates addressing various bugs and enhancing user experience.
By: Costa
Users: 90,000+
Version: 0.2.4 (Last updated: 2020-11-21)
Creation date: 2018-10-04
Risk impact: Moderate risk impact
Risk likelihood: Very low risk likelihood
Manifest version: 2
  • tabs
Size: 32.61K
Stats date:

Other platforms

Not available on Firefox
Not available on Edge
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Find yourself visiting websites unrelated to your current task, even without thinking? Place a barrier in your way by blocking the sites with SiteBlock.

Set the list of sites in the Extension Options. Access it through the Chrome menu, under More Tools -> Extensions -> SiteBlock -> Details -> Extension Options.


  • 0.2.4 - code reorganize by Sapronov Alex [email protected]
  • 0.2.3 - work around bug in Chrome 17 and later that was causing some tabs not to be filtered / migrate to manifest v2 format required by upcoming Chrome
User reviews
User reviews summary
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 Chrome Web Store does not verify user reviews, so some user reviews may be inaccurate, spammy, or outdated.
  • Free
  • Simple and easy to use
  • Works well
  • Lacks password protection feature
  • Does not have a preview dialog box for updating the block list
  • Some users mentioned wanting more features
Most mentioned
  • Simple and easy to use
  • Free
  • Works well
Recent reviews
by Mohsen Arefali Mohsen Arefali, 2024-05-14

It does it thing.
by Tim H. Tim H., 2024-05-11

View all user reviews
Risk impact

SiteBlock may not be safe to use and it requires some risky permissions. Exercise caution when installing this extension. Review carefully before installing.

Risk likelihood

SiteBlock has earned a good reputation and can be trusted.

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