Track Your Calendar Events Like a Pro

Mark Google Calendar events as completed with visual checkmarks. Turn events into tasks and stay productive.

Install Free Extension

Works with any Chromium browser

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10,000+ Active Users
4.5★ Chrome Store Rating
Free Plan available

How It Works

Get started in just a few simple steps

Free Version

Just install the extension and go to any calendar event edit page to mark events as completed by adding checkmarks or strikethrough.

Premium Version

Install the extension, sign in with Google, and enjoy powerful features to mark events complete with one click.

Quicker Event Completion

Mark events complete with a single click directly from the event dialog.

Daily Events Popup View

Access all your events for the day in extension popup with completion status.

Custom check marks

Pick any emoji or Unicode symbol to mark events done.

✅ Classic check 🔥 Priority wins 🧠 Deep work 📌 Follow-ups ✓ Unicode checkmark

Switch them anytime from the extension options - great for teams, personal calendars, or themed workflows.

Mark Events Anywhere

Use the popup to quickly mark events complete from any browser tab - no need to keep Google Calendar open.

Multi-Calendar Support

Select which calendars to track and manage. Perfect for users with multiple calendar accounts.

Free vs Premium Features

Compare what's included in each plan

Feature
Free $0
Premium
$4.99/mo $39.99/yr Save 33%
Mark Events as completed on Edit page
Completion marks visible across all calendar clients (macOS Calendar, Outlook, etc.)
Quicker Event Completion from event dialog
Daily events popup view w/ Multi-calendar support
Mark events from any browser tab
Custom checkmarks (emoji + Unicode)

🔒 Secure payment processing powered by Stripe. Cancel at any time.

Frequently Asked Questions

How to mark events done on Google Calendar?

Install the Google Calendar Event Checker Chrome extension, open an event, and use the one-click completion button or strikethrough/checkmark options to mark something as complete so it syncs everywhere.

Is my calendar data secure?

Absolutely! We use only Google infrastructure. Authentication tokens are encrypted, and we never see, store, or share your calendar events data.

Can I use the free version forever?

Yes! The free plan includes core features like checkmarks and strikethrough. Upgrade to Premium only if you want advanced features like one-click buttons and daily event views.

How do I cancel my Premium subscription?

You can cancel anytime from the Stripe customer portal. Your Premium features will remain active until the end of your billing period, then you'll automatically return to the free plan.

Does this work with Google Workspace calendars?

Yes! The extension works with both personal Google accounts and Google Workspace (formerly G Suite) accounts. Multi-calendar support is available in the Premium plan.

Can I share completed events with other people?

Yes! Since changes are saved directly to Google Calendar, anyone with access to your calendar will see the checkmarks and strikethrough modifications.

Ready to Get Organized?

Join thousands of users who track their calendar events efficiently

Install Extension - It's Free!

No credit card required • Free plan available