Block Site Extension Alternatives

BlockSite is an extension, which automagically blocks websites of your choice.

Freedom is a productivity hack that lets you block apps, websites or the entire Internet on iPhones, iPads, Windows and Mac computers.

Employee Monitoring Software with Screenshots, Internet, Activity and Time Tracking

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Cold Turkey is a free productivity program that you can use to temporarily block distractions so that you can get your work done!

More suitable with Google Chrome, this service enables you ensure you do not waste precious time on updating Facebook status or chatting with people.

With so much access to information and distractions on the internet, it's easy to get sidetracked.

Fast and memory efficient content blocking Chrome extension - helps you hide ads, avoid tracking...

A freeware web filtering application with HTTP/S filtering and time controls for all platforms...

The best parental control and web filtering software. Complete visibility and control over your child's online activity. Sign up today to start.

FocalFilter is a Windows based application which helps you center by briefly blocking diverting sites.

Forest is an app that helps you stay focused on the important things in life.

V2 updates! - Custom time interval for distraction free mode - Ability to turn off ' always on' mode - Improved UI -- Self Control -- A simple app to keep you focused online by blocking sites that you spend way too much time on.

Open Source

Popular and efficient blocker for Chromium, Chrome, Edge, Firefox, Opera, Safari, Thunderbird.

Open Source

LeechBlock is an extension for Firefox and Chrome that allows users to block time-wasting sites.

Open Source