10 Best Google Calendar Extensions & Add-Ons in 2025

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Half a billion people use Google Calendar every month. Its easy-to-use interface, color-coded calendar, and great integrations make it a top choice for personal and professional needs. However, despite its popularity, it doesn’t always have everything you need.
Google Calendar extensions to the rescue! The right extension lets you manage your Google Calendar events with more flexibility and customization. If you want to get more out of your daily agenda, here are ten of the best Google Calendar extensions you’ll want to check out in 2024.
With millions of daily users, Google Calendar is one of the most popular calendar options on the market. Many add ons and compatible apps are available to help you power up your Google Calendar events, meetings, and tasks. When you start looking for ways to extend the functionality of your Google Calendar, here are some things to keep in mind:
There are a lot of Google calendar extensions out there, so don’t be afraid to change things up and try a few different options. It’s a great way to see what works, what features you need, and what helps you optimize your workflow within your Google Calendar.
For individuals and teams focused on project management, ClickUp offers incredible features that can extend your Google Calendar functionality and make it easier to manage tasks.
Connect ClickUp and Google Calendar via Zapier, and you’ll eliminate the need to go back and forth between the platforms and manually sync meetings, events, and even your Google Calendar tasks. Add the Zap to your ClickUp account (no coding skills required!), and the two platforms will share data seamlessly. Then, you can use ClickUp’s Calendar View to view comprehensive timelines, eliminating the need to juggle multiple calendars again.
ClickUp becomes a centralized command center for managing, planning, and allocating your time. You can even use ClickUp’s free Calendar Planner Template to help you organize and ditch calendar clutter.

TeamCal is a Google Calendar extension built for managing teams. The app uses Google Calendar data to display many calendars simultaneously, giving you a comprehensive view of what’s happening with your team.
From the app, you can identify coverage gaps, look for convenient meeting times, or identify potential burnout before it happens. Any updates you make in the app are automatically updated in Google Calendars, syncing seamlessly and eliminating repetitive admin work.

Timely is an AI-powered time-tracking extension for Google Calendar. Instead of manual time tracking, Timely runs in the background, automatically logging your work activity.
More than a simple time tracker, though, Timely knows what projects you are working on and logs what apps you use to get the job done. So not only does it free up your time from admin hours, but it can also provide you with data analysis on your work habits and help you work more efficiently. Connect Timely to your Google Calendar and other calendars to make time-tracking even more effortless.
Checker Plus is a popular Google Calendar extension that makes accessing your calendar and adding events faster and easier.
Once installed, just click on the Chrome extension icon in the top left corner to view your Google Calendar in your current tab. From there, you can see, edit, and move your events around without changing your browser window. The extension lets you create Google Calendar event reminders, including popup notifications and custom sound options.
It supports all your calendars simultaneously, so you can use the extension for your personal and professional Google Calendar page.

Clockwise is an AI-powered scheduling assistant that works with your Google Calendar. The extension will manage your day, helping you block out time for focused work, syncing with your personal calendar, or building in transit time for off-site meetings. It’s even better when the entire team uses it because it can help you find the perfect slot slots for team meetings and collaboration.

Nova New Tab is a nifty Google Chrome Extension that appears in your Chrome toolbar and replaces your default new tab page. It allows you to customize the new tab page with your Google Calendar events, weather, meeting notes, and more. You can customize the layout, colors, and background to suit your desktop aesthetic.
The extension has interesting built-in tools, like a Pomodoro Timer, a to-do list, and even ambient music options.
If you have several Google Calendars, you’ll know how messy it can get when viewing them all. But this handy Google Chrome extension helps clear up the clutter.
Download Event Merge to merge overlapping or duplicate calendar events into one streamlined schedule. The extension uses stripes to show you which calendars the event appears on, making the Google Calendar experience easier to read.
Bonus: How to Merge Google Calendars?

Heading to upcoming meetings without knowing what’s on the next meeting agenda? Meetric has your back.
This Google Calendar add-on automatically adds important information about your next event, including who is attending, the meeting agenda, and links to meeting notes and minutes.
You can also use this Chrome extension to capture key meeting notes, transcriptions, or actionable insights, collaborating with the rest of your team along the way. You can even use Metric to assign tasks to ensure all those actionable items get done.
Unless you’re running a bakery or an all-night delivery service, it’s unlikely you need to know what’s on your agenda at 3 a.m. The team that developed Hide Morning saw this issue and fixed your work calendar.
Their handy Google Calendar extension hides unnecessary white space on your calendar, making a more realistic view of your waking hours. The free Google Workspace add-on hides everything from midnight until your customized start time.

Zoom Scheduler is a handy tool within the Zoom platform that connects with your Google Calendar and allows others to schedule Zoom calls without giving them access to your full calendar.
You can schedule your availability, share a booking link with clients or team members, and let them book themselves in. There is no need for back-and-forth emails or a phone call to arrange a time. Plus, you and the attendees get automated reminders about your upcoming events.
When you need a comprehensive solution for your calendar needs, discover what ClickUp can do!
ClickUp can eliminate the need to juggle multiple extensions, toggle between interfaces, and stop context switching so you can get more done. That’s because ClickUp is more than a Google Calendar add-on. It’s a complete command center for your daily agenda.
Ditch your calendar chaos and get more productive with ClickUp. Sign up today for a free and see what you can do with your time.
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