Google Calendar Event Checker

Google Calendar Event Checker

Mark events as completed or cancelled in Google Calendar with emojis or strikethroughs.

What is Google Calendar Event Checker?
'Google Calendar Event Checker' is a Chrome extension designed to enhance productivity for Google Calendar users. It allows you to mark your calendar events as completed or cancelled using emojis, strikethroughs, and automatically adds timestamps. With privacy in mind, it's minimalistic, non-intrusive, and does not collect user data. The extension is user-friendly, offering customizable options for different visual cues and easy installation.
By: artywhite
Users: 7,000+
Rating: 4.60 (25)
Version: 1.6.5 (Last updated: 2024-02-11)
Creation date: 2019-03-09
Risk impact: Low risk impact
Risk likelihood: Very low risk likelihood
Manifest version: 3
  • storage
Size: 47.06K
Email: ar*****
URLs: Website
Stats date:

Other platforms

Not available on Firefox
Not available on Edge
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It's perfect tool for those who regularly use Google Calendar in their browser and want to boost productivity, especially in learning how to mark events as done or canceled. The extension is minimal, adding just one button to the event save page, and it doesn't collect any user data.


  • Customizable visual cue: choose between emojis (✅ or ❌) or a strikethrough effect (title crossed off).
  • Timestamps for Easy Reference: automatically saves the timestamp of completion or cancellation in the event's description, helping you keep track of your progress.
  • Minimal and Privacy-Oriented: We respect your privacy. This extension is designed to be minimalistic, does not track any user data, and only requires access to Google Calendar pages.

How to Use:

  1. Open an event in Google Calendar for editing.
  2. Click the completion marks button (✅) and save event.
  3. Witness the completion mark in action across all views.

To customize visual cues and adjust other settings, visit the extension options page.

If you find this Chrome extension useful and want to support its development, you can show your appreciation by:

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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 Chrome Web Store does not verify user reviews, so some user reviews may be inaccurate, spammy, or outdated.
  • Allows for easy marking of completed events/tasks
  • Simple and functional
  • Helps manage due dates without using tasks
  • Intermittent issues with the check mark disappearing or not working
  • Limited options for checkmark aesthetics
  • Not available for Android app or right-click on event
Most mentioned
  • Intermittent issues with the check mark disappearing or not working
  • Limited options for checkmark aesthetics
  • Exactly what I was looking for
Recent reviews
Love it, but it needs more options for the checkmark
by Elvia Garza Elvia Garza, 2024-04-04

Didn't work for me. Only showed up about 30% of the time.
by Nic Thompson Nic Thompson, 2023-04-28

Works exactly as expected. Thank you for this extension! What would make this A+ perfect for me is if this also contained a setting to change the color coding of the event. E.g., I like to change my completed events/tasks to gray.
by Steve Magruder Steve Magruder, 2023-01-30
View all user reviews
Risk impact

Google Calendar Event Checker is relatively safe to use as it requires very minimum permissions.

Risk likelihood

Google Calendar Event Checker has earned a good reputation and can be trusted.

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