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Online Calendar 2024: 11 Best Online Calendars & Apps

Sep 21, 2023 @ 8:52 pm

The digital realm has revolutionized the way we manage time, with online calendars 2024 emerging as a paramount tool in our day-to-day lives. From scheduling work meetings to tracking personal events, these dynamic platforms offer more than just reminders.

Diving into the best online calendar apps can unlock a wealth of benefits, streamlining tasks and promoting organization. This article explores the leading apps in the market, the perks of embracing online calendars, and other insights that will elevate your time management game.

What is an Online Calendar?

Online Calendar
Online Calendar

An online calendar is a digital tool that allows users to organize, schedule, and monitor events, tasks, and appointments over the internet. Unlike traditional paper calendars, online calendars can be accessed on various devices, such as smartphones, tablets, and computers, offering real-time synchronization, reminders, and collaboration features. They often integrate with other software, enabling seamless transitions between tasks, making them indispensable for both personal and professional time management.

Benefits Of Using A Online Calendar

The fast-paced world of today demands tools that can keep up, and one such tool that has proved its mettle in both personal and professional domains is the online calendar. As our lives become increasingly intertwined with digital ecosystems, the perks of integrating an online calendar into our daily routines are manifold. From bridging the gap between accessibility and convenience to fostering collaborative endeavors, online calendars have reshaped the way we perceive and manage time. Here are the main benefits that elucidate why this digital tool has become an indispensable asset for many:


With online calendars, you can access your schedules and events from any device with an internet connection. Whether you’re using a laptop, smartphone, or tablet, your data is right at your fingertips. This means you can check your plans while on the move or from the comfort of your home.


Many of the best online calendar apps offer real-time synchronization. If you update an event on your laptop, it’s instantly reflected on your smartphone or any other synced device. This ensures consistency and avoids scheduling conflicts.


A significant advantage of opting for a free online calendar is the savings. Instead of purchasing physical calendars year after year, or proprietary software, you can manage your time without incurring any cost.


For professionals and teams, an online calendar planner facilitates collaborative scheduling. Team members can share their calendars, schedule joint events, or set up meetings without the constant back-and-forth communication. Shared access means everyone stays on the same page.


The best online calendar apps usually integrate seamlessly with other tools. Whether it’s email clients, task management software, or conferencing tools, this integration ensures a holistic approach to productivity.

Customization and Personalization

Online calendars allow users to customize views (day, week, month, year) and personalize with colors, labels, or themes. This makes it easier to visually organize and differentiate between work tasks, personal appointments, birthdays, and more.

Automated Reminders

Gone are the days of forgetting important dates or appointments. Online calendars send push notifications, emails, or even SMS reminders, ensuring you never miss out on crucial events.

Recurring Events

If you have events that occur regularly, like weekly meetings or monthly check-ins, online calendars allow you to set these as recurring. This eliminates the need to enter the same event multiple times.

Backup and Security

With traditional calendars, there’s always a risk of misplacement or damage. With an online calendar, your data is stored securely in the cloud, with regular backups. This means even if you lose a device, your schedule remains intact.

Task Management

Beyond just scheduling, some online calendar planners offer task management features. You can set to-do lists, prioritize tasks, and track your productivity all within the same tool.

Time Zones

For those who work or communicate across different time zones, online calendars adjust and display times accordingly. This ensures clarity and avoids confusion in scheduling international calls or meetings.

Environmentally Friendly

By using a digital calendar, you’re reducing the need for paper-based planners and schedulers, contributing to a more sustainable and eco-friendly environment.

Public and Private Settings

Most online calendars allow you to set certain events as public or private. If you’re sharing your calendar, this ensures that personal or sensitive events remain visible only to you.

Why is an online calendar important?

The digitalization of modern life has given rise to tools that reshape the way we function daily, and among them, the online calendar stands out prominently. An online calendar is more than just a digital record of dates and events; it’s a dynamic system that brings structure, clarity, and efficiency to our otherwise chaotic lives.

By centralizing our plans, tasks, and commitments, it ensures that we stay organized, reducing the likelihood of overlooked appointments or double-booked schedules. The real-time synchronization feature found in many online calendars ensures that changes reflect instantly across all devices, promoting seamless transitions in our routines and eliminating inconsistencies.

Furthermore, in an era characterized by global connectivity and collaboration, online calendars play a pivotal role in fostering effective communication among teams, families, or social circles. The ability to share schedules, set collective reminders, and coordinate activities across time zones is crucial in today’s interconnected world.

Without such a tool, the challenges of managing time, especially in professional settings with multiple stakeholders, would be daunting. By serving as a central hub for all scheduling needs, online calendars enhance productivity, foster collaboration, and provide a clear overview of our time, ensuring we make the most of each day.

Features of Modern Online Calendars

Modern online calendars have evolved from being mere date trackers to versatile tools that cater to diverse needs, personal or professional. Here’s a deep dive into some of the salient features that set modern online calendars apart:

  1. Syncing Across Devices
    • Overview: With the proliferation of devices in our lives, from smartphones and tablets to laptops and desktops, it’s essential for users to access their calendar information seamlessly across all these platforms.
    • Details: Syncing ensures that if you set an appointment on your phone, it instantly reflects on your desktop calendar and vice versa. This real-time update minimizes scheduling conflicts and keeps you updated no matter which device you’re using.
    • Application: Consider you’re away from your work desk and you quickly set a lunch meeting via your smartphone. When you’re back to your workstation, your desktop calendar will already have this appointment, ensuring consistency.
  2. Integrations with Other Applications
    • Overview: Modern calendars aren’t standalone tools; they integrate efficiently with various applications ranging from email clients to task management tools.
    • Details: Integrations can pull data from emails to set meetings automatically, link with task managers to align your to-dos with your schedule, or even connect with CRM systems to schedule client interactions.
    • Application: If you’re using a project management tool, it might send a prompt to your calendar about a project deadline, ensuring that you’re reminded of it both on your task list and your calendar.
  3. Event Reminders & Notifications
    • Overview: Forgetfulness is human, but with modern calendars, missed appointments can be a thing of the past.
    • Details: These platforms allow users to set reminders or notifications for upcoming events. Whether it’s a gentle pop-up on your device or an email notification, these reminders ensure punctuality.
    • Application: If you have a doctor’s appointment, setting a reminder for an hour before can help ensure you leave on time, taking into account factors like traffic.
  4. Sharing & Collaboration Tools
    • Overview: Today’s calendars are collaborative platforms where events can be shared, viewed, or even co-edited with colleagues, friends, or family.
    • Details: Whether it’s planning a team meeting or organizing a family gathering, sharing features ensure everyone is on the same page. Permissions can often be set, determining who can view or edit an event.
    • Application: When organizing a team project, a shared calendar can allow members to mark their available dates, ensuring meetings are set when everyone is free.
  5. Custom Views (Daily, Weekly, Monthly, Yearly)
    • Overview: Depending on the task at hand, users might want a close-up view of their day or a broader perspective of their month.
    • Details: Modern calendars allow for various view settings. A daily view might show detailed hourly slots, while a yearly view offers a broader perspective to plan long-term goals or vacations.
    • Application: When planning day-to-day tasks, the daily or weekly view will provide granularity. In contrast, when setting yearly objectives or planning annual vacations, the monthly or yearly view would be more apt.

Best Free Online Calendars 2024

An online calendar is a great way to manage your life from home, work, and on the go. Not only do they let you keep track of events and special dates, but you can also set reminders, send invitations, share and organize events with others, and generally manage your whole life. Below is a list of the best online calendar apps available today.

Many of these calendars have additional features beyond scheduling that make them unique – things like address books, photo management, document uploading and sharing, and more. With an online calendar, you can consolidate your schedule and activities in one place and access it anytime, anywhere. Whether you need to coordinate with family, friends, or coworkers, these digital calendars offer convenient organization and planning. Here are the top online calendar apps to help manage your schedule:

Google Calendar

Google Calendar is one of the most popular and fully-featured online calendar options. As part of Google’s free web services, it integrates seamlessly with other Google products like Gmail, Drive, and Google Assistant.

Some key features of Google Calendar include:

  • Ability to create multiple calendars for personal, work, family etc. Calendar colors and names can be customized.
  • Event creation with details like title, location, start/end times, guest invites, and reminders. Repeating events are supported.
  • Calendar sharing and collaboration. You can share whole calendars or individual events and allow others to edit.
  • Integration with Gmail for easy event creation from email content and reminders.
  • Mobile app for Android and iOS provides full create/edit/view functionality on the go.
  • Web interface works on any desktop browser. Clean and intuitive interface.
  • Calendar view customization – choose day, week, month views. Adjust time zone.
  • Search events quickly by title, guest, location etc.

For example, I have a Google Calendar set up for work events and meetings. I can quickly create a new event titled “Weekly Team Sync”, set it to repeat every Tuesday at 2pm, add my colleagues as guests, and set a 30 minute reminder. This event then appears on my work calendar and my colleagues’ calendars automatically if shared.

Outlook Calendar

Outlook Calendar comes included with business and personal Microsoft accounts. It offers convenient scheduling and tracking for those who rely on Outlook for email.

Key Outlook Calendar features:

  • Create events with details like title, attendees, location, start/end time, recurrence, and reminders.
  • Share calendar with specified individuals. Collaborate on event scheduling.
  • Integrates tightly with Outlook email to add events automatically from emails.
  • View schedules by day, week, month, or schedule view. Adjust time zones.
  • Apps for iOS and Android provide access on mobile devices.
  • Color categories help visually organize events and appointments.

For example, I can open Outlook Calendar and create a new meeting titled “Budget Review” for next Monday at 9am with some coworkers added as required attendees. This event is then added to all attendees’ calendars so we are all on the same page.

Yahoo Calendar

For those with a Yahoo mail account, Yahoo Calendar provides a simple online scheduling service. It lacks some advanced features but easy to use.

Highlights of Yahoo Calendar:

  • Create events with title, location, start/end date/time. Mark public, private, or recurring.
  • Set email reminders for events.
  • Integrates with Yahoo Mail to add events from email content.
  • Color code events for quick visual reference.
  • Simple day, week and month view.
  • Apps available for iOS and Android mobile access.

For example, I can open my Yahoo Calendar and add my son’s basketball game for next Saturday at 9am, marking it as private and setting a 30 minute email reminder. The event is then added to my calendar so I don’t forget.

Cozi Family Organizer

Cozi is a top choice for families and households looking to coordinate schedules and activities in one place. It makes sharing calendars and organizing tasks simple.

Notable features of Cozi:

  • Create multiple calendars for each family member. Color code and customize.
  • Share grocery lists, to-dos, and reminders across family members.
  • Schedule recurring events like practices, meetings, bill pay dates.
  • Sync with iOS and Android mobile apps.
  • Assign to-dos to specific people with reminders.
  • Integrates with Gmail and Outlook.

For instance, I can create a family calendar in Cozi with separate calendars for me, my wife, and kids. I can then add my daughter’s dance lessons to her calendar weekly and set a reminder for my wife about upcoming grocery shopping. We can all view and update shared items.

Zoho Calendar

Zoho Calendar is a capable, customizable online scheduling service that is part of the Zoho productivity suite. It provides deep integration across Zoho’s other apps.

Zoho Calendar offers:

  • Create and share calendars for personal and business use. Color code for events.
  • Set up recurring events like meetings, deadlines, conferences etc.
  • Event reminders via email and pop-up notifications.
  • Integrates deeply with Zoho CRM, Mail, and other services.
  • Apps for web, iOS and Android. Mobile friendly interface.
  • Calendar sharing and synchronization across team members.

For example, I can use Zoho Calendar at work to schedule weekly one-on-one meetings with my direct reports, setting the meetings to repeat weekly and sending email reminders. My calendar is then synced with my team’s calendars automatically.


Woven is a calendar app designed specifically for families and groups. It makes coordinating events, tasks, and grocery lists easy.

Woven offers:

  • Shared calendars to track family member schedules and activities.
  • Grocery lists, to-dos, and reminders to assign tasks and deadlines.
  • Recurring events and appointments for routine activities.
  • Mobile apps help families stay synced on the go.
  • Calendar integration with Gmail, iCloud, Outlook.

For instance, I can create a family calendar in Woven for me, my wife and two kids. I can then add my son’s soccer practice on Tuesdays and Thursdays and grocery list reminders for my wife. My whole family stays up to date on the same shared schedule.


Trumba is an online calendar service designed for universities and educational institutions. It provides a customizable calendar for campus events.

Key features of Trumba include:

  • Centralized calendar for university events, speakers, classes, and more.
  • Customizable design and branding options for schools.
  • Ability to embed calendars into university websites.
  • Calendar syndication for sharing events externally.
  • Submission tools to allow event creation across campus.

For example, a university could use Trumba to create a public campus events calendar showing school club meetings, sports games, guest lectures, and academic deadlines in one place. Students and faculty could then access this calendar online and through school website widgets.

Teamup Calendar

Teamup is a versatile online calendar ideal for small teams and groups. It makes sharing multiple calendars easy and provides lots of management features.

Notable Teamup Calendar features:

  • Create unlimited shared calendars for groups. Color code for easy visibility.
  • Event creation tools including reminders, recurrence, attachments, and notes.
  • Calendar apps for iOS, Android, Windows, Outlook.
  • Activity log tracks event changes and edits by each user.
  • Privacy controls allow calendar shielding from other group members.

For instance, our department could use Teamup to create a shared office calendar showing everyone’s schedules, deadlines, vacation time, meetings, and events. The calendar can be color coded by person and shared across the team.

Business Calendar

Business Calendar by Appgenix is a robust online calendar designed for work and teams. It focuses on collaboration and visual organization.

Key features include:

  • Group calendars shared across teams and departments.
  • Create and manage events, meetings, milestones and reminders.
  • Visual organization with color-coding and symbols to mark event type.
  • Apps for Web, iOS and Android. Mobile friendly interface.
  • Integrations with Google, Outlook, Exchange calendars.

For example, I could set up a Business Calendar for my marketing team. We can view and edit events collectively. I can also color code different campaign deadlines and meetings to keep things organized.


24me is an intelligent personal assistant calendar that helps manage schedules and tasks. It aims to simplify time management.

24me offers:

  • Automated scheduling based on natural language input and habits.
  • Sync across mobile, web, and desktop apps.
  • Integration with email, contacts, and other calendars.
  • Appointment reminders and suggested travel times.
  • Note taking and list making along with calendar.

For instance, I can tell 24me “Schedule lunch with Joan next Tuesday at noon” and it will automatically create the calendar event from my input. It can also suggest best commute times and alert me about upcoming appointments. provides a quick and convenient online scheduling service. It offers a simple interface without advanced features. includes:

  • Create events with start/end dates and times. Add notes.
  • Day, week, and month view.
  • Email or SMS reminders for events.
  • Add tasks with due dates along with calendar.
  • Apps for iOS and Android devices.

For example, I can quickly open and add my dentist appointment next Friday at 10am, setting a reminder to get an alert. The minimal design allows fast event creation.


Online calendars provide versatile solutions for organizing your schedule and managing your time efficiently. Whether you need to plan events and appointments for personal or professional purposes, there are many great options to choose from. The calendars covered in this article represent some of the most popular and fully-featured online calendar tools available today.

They offer convenience, collaboration features, and mobile connectivity to give you flexibility in tracking and sharing your schedule. When evaluating online calendar options, consider factors like integration with other services you use, ability to share and edit events with others, and customization of views and settings to suit your needs. With the wide range of free online calendar apps available, you can find one that perfectly fits your lifestyle and schedule management requirements. Take advantage of these digital tools to stay organized and effectively manage every aspect of your daily life.


Are online calendars safe?

While most reputable online calendar providers prioritize user data security, no system is entirely immune to breaches. It’s essential to use strong passwords, enable two-factor authentication, and regularly review app permissions to maintain your calendar’s security.

How do I sync my online calendar across devices?

To sync an online calendar across devices, you typically need to ensure you’re signed in to the same account on each device. Settings within the calendar app will usually allow you to select which calendars to sync.

How do I integrate other apps with my online calendar?

Many online calendars offer built-in integrations or can connect with third-party services like Zapier to integrate with other apps. You would usually go to the settings or integrations section of your calendar to link other services.

Do online calendars work offline?

Many online calendars have offline modes that allow you to view and edit events without an active internet connection. Changes made offline will typically sync once the device reconnects to the internet.

How can I back up my online calendar?

Many online calendar services automatically back up your data to the cloud. However, for added security, you can export your calendar data to an .ics or similar file and save it to a secure location.

Do online calendars offer features for teams or businesses?

Yes. Many online calendar platforms offer business versions that include features like shared calendars, meeting room bookings, and integration with other business tools.

Can I customize the view of my online calendar?

Most online calendars allow users to toggle between day, week, month, and year views. Some also offer agenda or list views, and the ability to customize the calendar’s appearance.

How do I prevent double bookings in my calendar?

Most modern online calendars automatically prevent double booking by showing conflicts. Scheduling tools integrated with calendars can also prevent clients or colleagues from booking overlapping slots.

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