Nucleus: A Pomodoro Timer and Website Blocker

Provides a Pomodoro for focused time management and the ability to block websites to help prevent distractions while you work.
What is Nucleus: A Pomodoro Timer and Website Blocker?
Nucleus: A Pomodoro Timer and Website Blocker is a Chrome extension that helps users manage their time effectively and avoid distraction. By dividing tasks into short intervals, called 'Pomodoros', users are allowed short breaks to help maintain their productivity. The additional website blocking feature keeps distracting websites at bay, ensuring users remain focused on their tasks.

Extension stats

This extension was removed from Chrome Web Store on 2024-11-10 due to malware
By: shilopron
Users: 20,000+
Rating: 4.10 (102)
Version: 2024.01.26 (Last updated: 2024-09-17)
Creation date: 2019-03-08
Risk impact: Moderate risk impact
Risk likelihood: Very high risk likelihood
Manifest version: 3
Permissions:
  • declarativeNetRequest
  • activeTab
  • background
  • notifications
  • storage
  • offscreen
Host permissions:
  • *://*/*
Size: 2.18M

Other platforms

Not available on Firefox
Not available on Edge
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Extension summary

“All of my power is focused on my task; there are no distractions.”

Concentrating your mind and getting into a period of deep focus will make the effort and time that go into your tasks more effective. It will allow you to 'get in the zone', freeing your mind of distractions until your entire body, mind and soul become engrossed into the work.

Nucleus provides a simple, but effective UI to manage these periods of focus and relaxation. Nucleus is based on the Pomodoro technique for time management. When faced with any large task or series of tasks, break the work down into short, timed intervals (called 'Pomodoros') that are spaced out by short breaks. This allows you to immerse your mind, and get good work done.

Nucleus also includes the ability to block distracting websites so you can stay focused on your work.

Find you center.

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 Chrome Web Store does not verify user reviews, so some user reviews may be inaccurate, spammy, or outdated.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
  • Great for productivity and focus.
  • Gentle notification sounds.
  • Customizable focus and break times.
  • Built-in website blocker.
  • Works well for self-study on platforms like Udemy.
Cons
  • Website blocking is not linked to focus time.
  • Glitches lead to multiple notifications at once.
  • Ringtone/alarms are too quiet and short.
  • Manual unblocking of websites is required during breaks.
  • Concerns about data privacy and tracking.
Most mentioned
  • Website blocking should be integrated with focus time.
  • Glitches causing multiple notifications.
  • Ringtone volume and duration issues.
  • Manual blocking/unblocking is cumbersome.
  • Recent updates have created bugs and usability issues.
User reviews
by DMiguel Jara, 2024-10-27

The main problem is that sometimes it gets stuck in a loop and starts sending constant notifications, and you have to uninstall and install it again. Otherwise, it works perfectly.
by Yves Torre, 2024-10-05

This extension occasionally sends tracking information about me to an obscure server. This means they're harvesting my data. There's no reason why a simple extension to block urls and make timer should be harvesting user data. 0/5. Removed immediately
by Ola Oredola, 2024-09-07
View all user reviews

Extension safety

Risk impact

Nucleus: A Pomodoro Timer and Website Blocker requires a few sensitive permissions. Exercise caution before installing.

Risk likelihood

Nucleus: A Pomodoro Timer and Website Blocker is very likely to contain malware and should not be trusted. Avoid installing.

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Promo images

Nucleus: A Pomodoro Timer and Website Blocker small promo image
Small promo image

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