AddThisEvent is an
Add to Calendar widget
and Event Management tool

If you are looking for an “Add to Calendar” button for your website, then
look no further. AddThisEvent offers an easy, convenient way to create
an “Add to Calendar” button. It's easy to use and install.

AddThisEvent was created in Palo Alto, California, May 2012 by
Michael Nilsson and is today considered to be the standard
“Add to Calendar” button on the Internet.

Try the demo

Add to Calendar 06/10/2015 09:00 AM 06/10/2015 11:00 AM America/New_York Summary of the event Description of the event Location of the event Organizer Organizer e-mail false MM/DD/YYYY

AddThisEvent is:

  • Easy to install
  • 100% themable
  • Timezone and DST compatible
  • The leading calendar widget in the world
  • Great support (we will actually help you)


You're in good company. Awesome Internet Superstars
and Offline Ninjas use AddThisEvent too


Install your “Add to Calendar” button in a minute

AddThisEvent helps you create an “Add to Calendar” button in a matter of minutes. Get started using our simple yet beautiful pre-built button or customize the design to fit your website or application. Do not worry about daylight savings time and time differences in all the different regions of the world - we have got it covered. AddThisEvent has been tested by millions of users and is entrusted by companies from San Francisco to Sydney.

Works everywhere

AddThisEvent is carefully crafted and optimized for the most common browsers, tablets and mobile devices. In our mindset we go "way back" and so does our optimization - our “Add to Calendar” button is even optimized for Internet Explorer 6 (yes, some people in the world still use Internet Explorer 6).

What about newsletters, campaign management tools and social media like Facebook and Twitter?

Sharing your event on social medias like Facebook or Twitter is easy with our event management tool. Simply create your event and share it or insert the event link in your newsletters or campaign tools. With our event management tool you are able to provide links for direct downloads or create a landing page where your users can add your event to their calendar of choice.

Custom templates and Direct URL Method (API)

If you’re comfortable hand-coding HTML, then you can customize the apperance of the landing page. We have created simple block elements and tags which makes it fast and easy to setup your own design. You can create an unlimited number of templates.

Our Direct URL Method (API) is a method suitable for developers who develop their own newsletters, work with Flash, mobile development etc.


Non-commercial Usage - Free

If you want to use AddThisEvent for a personal website, your schools website, your personal blog or a non-profit organization then you do not need to become a Premium Member, just go on and use AddThisEvent.

Commercial Usage only $4.8 /month (if billed annually)

The AddThisEvent widget and API is going to save you weeks of programming, so consider becoming a Premium Member. As a Premium Member the widget becomes unbranded, you get access to all features and you support AddThisEvent to become even better.

Key Features Non-commercial Usage
Commercial Usage
Pre-built “Add to Calendar” button
Calendar generates & downloads Unlimited Unlimited
Timezone and DST compatible
SSL support (https)
Advanced “Add to Calendar” javascript settings
Change labels in “Add to Calendar” dropdown
Custom options in “Add to Calendar” dropdown
Custom “Add to Calendar” themes gallery
Custom CSS (ability to customize the “Add to Calendar” button)
Event reminders in Outlook, iCalendar (MAC) etc.  
Recurring events in Outlook, iCalendar (MAC) etc.  
Event Management Tool for newsletters and campaign tools, eg. MailChimp, Marketo, Salesforce, CampaignMonitor, flash, iPhone, Android etc.  
Direct URL Method (API) for dynamic calendar creation with optional landing page  
Custom landing page for events  
All AddThisEvent branding removed  
Support   Priority


Building AddThisEvent with our users is the real deal to us.
We keep track with all changes made so our users are kept in the loop.

Update (Saturday, May 23, 2015)


A lot of our users have asked us to make it possible to do recurring events. We love the idea and we are currently working on expanding the "Events Manager" to support recurring events. First step was to figure out a great user interface. The user interface we have settled with has been rolled out in the existing "Events Manager".


Removed the old "Events Manager" setup.

Update (Wednesday, May 20, 2015)


Added "alarm" parameter to "Direct URL Method".


Added {{alarm}} block to "Custom Landing Page" parameters section.

Update (Monday, May 18, 2015)


In case a credit card was declined (due to wrong values entered) when signing up for Premium Membership we failed to inform our users right away. This error has been corrected.