Add Events To Apple/Google/Yahoo/MicroSoft Calendars – atcb.js

Category: Date & Time , Javascript , Recommended | June 18, 2024
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Last Update:June 18, 2024


Add Events To Apple/Google/Yahoo/MicroSoft Calendars – atcb.js


Add-to-Calendar Button is a JavaScript library that lets you add custom events to popular calendars (like Google Calendar, Apple Calendar, Yahoo Calendar, Outlook, Microsoft Teams, and Microsoft 365) and automatically generates iCal/ics files for other calendar services like Apple.

Easy to implement in Vanilla JavaScript, Vue, React, Angular, Svelte, and Astro.

How to use it:

1. Install and import the atcb.js.

$ npm i add-to-calendar-button
import 'add-to-calendar-button';
// OR From A CDN
<script src="" async defer></script>

2. Insert your event data (JSON) into the add-to-calendar-button component.

  name="Event Title"

3. Trigger the Add-to-Calendar menu on click instead.

  name="Event Title"

4. Add more detailed information to your event.

  name="Event Title"
  location="Your Location"
  description="[p][strong]Check out[/strong]
  availability="free" // busy, free

5. The library also works with timezone:

  name="Event Title"
  timeZone="America/Los_Angeles" // default: UTC

6. Customize the iCal/ics file name.

  name="Event Title"
  iCalFileName="File Name"

7. Recurring events are supported as well.

  name="Event Title"

8. All possible event options.

  options="[]" // Apple, Google, iCal, Microsoft365, MicrosoftTeams,, Yahoo
  organizer="" // NAME|EMAIL
  recurrence="" // "RRULE:..."; daily, weekly, monthly, yearly
  recurrence_byMonth="" // 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12
  recurrence_weekstart="MO" // MO, TU, WE, TH, FR, SA, SU
  availability="" // busy, free
  icsFile="" // URL
  created="" // YYYYMMDDTHHMMSSZ
  updated="" // YYYYMMDDTHHMMSSZ

9. All possible style options.

  buttonStyle="default" // default, 3d, flat, round, neumorphism, text, date, custom, none
  customCss="" // URL
  label="Add to Calendar"
  trigger="hover" // hover, click
  listStyle="dropdown" // dropdown, dropdown-static, overlay, modal
  lightMode="light" // system, dark, light, bodyScheme
  language="en" // en, de, nl, fr, es, pt, tr, zh, ar, hi, pl, id, no, fi, sv, cs, ja, it, ko, vi
  hideBranding="false" // show/hide branding

10. All possible image options.

  images="[]" // array of URLs


v2.6.18 (06/18/2024)

  • security patch

v2.6.16 (06/01/2024)

  • Update

v2.6.15 (05/15/2024)

  • Workaround to make all-day events with Yahoo work again.

v2.6.14 (04/30/2024)

  • optimizing default font
  • fixing date button allday issue

v2.6.13 (04/16/2024)

  • fixing all kinds of smaller bugs
  • optimizing handling of cancelled events

v2.6.12 (04/13/2024)

  • Bugfixes

v2.6.11 (04/09/2024)

  • Bugfixes

v2.6.10 (04/04/2024)

  • Aria label fix
  • better Google Calendar subscription support on mobile

v2.6.9 (03/20/2024)

  • no more startDate required for subscribe butons
  • PRO call-to-action form fix
  • enhancing Aria labels at the button level

v2.6.8 (03/18/2024)

  • bugfix

v2.6.7 (03/16/2024)

  • bugfix

v2.6.6 (03/14/2024)

  • extending rich data with eventStatus default

v2.6.5 (03/12/2024)

  • Fixing more racing conditions

v2.6.4 (03/12/2024)

  • Fix for Angular binding values late

v2.6.3 (03/12/2024)

  • Fixing edge case race conditions

v2.6.2 (03/12/2024)

  • bugfixes
  • dropping default rich data images
  • optimized validation flow

v2.6.1 (03/10/2024)

  • css: modal text var
  • proxy override for PRO
  • fixes for Apple messing around with JS

v2.6.0 (03/01/2024)

  • new option useUserTZ
  • adding css ::part support
  • adding support for formatting inside a url at description
  • fixes

v2.5.10 (02/06/2024)

  • Time zone database update
  • Allow query on urls
  • proKey case fix

v2.5.9 (01/30/2024)

  • Dropdown now available for date style button (also acting as new default)
  • Fixing default image (set option to “[]” to disable)
  • Dropping iOS non-Safari workaround for givenIcsFile
  • style optimization
  • new css variables, like customizable font-weight
  • fixes

v2.5.8 (01/08/2024)

  • Style optimization

v2.5.7 (01/01/2024)

  • Better types
  • Workaround for Outlook not parsing ampersand in event title

v2.5.6 (12/28/2023)

  • uid generation if not given
  • index.d.ts export paths

v2.5.5 (12/20/2023)

  • Optimizing style of branding.

v2.5.4 (12/20/2023)

  • Style optimization
  • Fixing a bug with forceOverlay option + modal
  • allowing proKey attribute to be used all lower case

v2.5.3 (12/17/2023)

  • Bugfixes

v2.5.1 (12/17/2023)

  • Bugfixes

v2.5.0 (12/13/2023)

  • Default branding activated in order to support this free open source project (if you do not want to support this project, use the hideBranding option to disable it)
  • If you want to customize calendar option labels, you need need to do this via the customLabels option
  • Some inline style got moved to the css. If you use your own custom css, double-check
  • new optionsMobile und optionsIOS options to specify device-specific calendar types
  • more css var options and subtle style fixes
  • bundle-size optimization option
  • attendee optimization
  • a lot of fixes

v2.4.3 (09/18/2023)

  • bugfixes

v2.4.2 (09/17/2023)

  • bugfixes

v2.4.1 (08/31/2023)

  • bugfixes

v2.4.0 (08/30/2023)

  • forceOverlay feature
  • bug fixes
  • optimization for date button and iOS

v2.3.4 (08/16/2023)

  • fixing atcb_action with CDN and cspnonce sanitization

v2.3.3 (08/16/2023)

  • fixing leaking global vars
  • nonce option
  • minor optimization

v2.3.2 (08/11/2023)

  • Fixing stacking issues
  • optimizing some flows

v2.3.1 (08/02/2023)

  • Better accessibility

v2.3.0 (07/26/2023)

  • Added pastDateHandling
  • Addeddisabled option
  • Added new static-dropup option
  • Added Persian + Estonian
  • better date button style and logic (incl. custom label on date style button)
  • better iOS support
  • calendar name as label with buttonsList option
  • way more optimization and bug fixes

v2.2.10 (07/10/2023)

  • Upgraded dependencies.
  • Removed location workaround, where on iOS, for Google Calendar location got added to the description additonally.
  • Optimized clipboard handling, subscription management, as well as opening new tabs process.
  • Fixing a bug, where 1 option button collides with the blockInteraction functionality.

v2.2.9 (05/17/2023)

  • Bugfixes

v2.2.8 (05/13/2023)

  • fixing Microsoft link

v2.2.7 (05/10/2023)

  • enabling outlook mobile again

v2.2.6 (05/06/2023)

  • no longer sending time zone to Google for all-day events, since Google tried to optimize times then in some cases.
  • updated MS Teams link generation for better all-day support (still some workaround due to lack of support).

v2.2.5 (04/06/2023)

  • Updates
  • Dependency bumps
  • Enabling text-hover color
  • minor bug fixes

v2.2.4 (03/16/2023)

  • better iCal text support
  • package bump
  • fixing mobile MS services bug

v2.2.3 (03/08/2023)

  • Optimizing order and logic of loading data to better support Angular data binding.

v2.2.2 (03/02/2023)

  • bug fixes
  • better debugging and error logging
  • update flat style

v2.2.1 (03/01/2023)

  • Better debugging

v2.2.0 (02/28/2023)

  • “attendee” option
  • lazy external css loading
  • bugfixes

v2.1.4 (02/25/2023)

  • fixing edge case when no time zone is given

v2.1.3 (02/24/2023)

  • Fixing wrong day on date style button with all-day events.

v2.1.2 (02/14/2023)

  • Optimizing code for backwards compatibility.

v2.1.1 (02/02/2023)

  • Bugfix

v2.1.0 (02/01/2023)

  • Adding Romanian language support
  • Adding back commonJS support
  • Minor fixes

v2.0.0/1/2 (01/28/2023)

  • full code refactoring

v1.18.8 (11/28/2022)

  • Fixing wrong date output at date buttons.

v1.18.7 (11/18/2022)

  • Fixing/Optimizing handling of subscribe urls

v1.18.6 (11/07/2022)

  • Fixing css drop-shadow (if multiple) iOS bug

v1.18.5 (10/27/2022)

  • Optimizing time calculation and fixing an issue where allday events right at a day where Daylight saving kicks in would lead to wrong numbers

v1.18.4 (10/26/2022)

  • bug fixes
  • New option to hide icons and text labels

v1.18.3 (10/23/2022)

  • bug fixes

v1.18.2 (10/22/2022)

  • bug fixes

v1.18.1 (10/19/2022)

  • bug fixes
  • option to hide new success checkmarks
  • new atcb_destroy functionality

v1.18.0 (10/03/2022)

  • multi-date functionality
  • subscription support
  • busy/free option
  • style updates
  • code refactoring
  • timezone database update

v1.17.0 (10/03/2022)

  • Fixing critical and not so critical bugs
  • Updating the license from MIT with “Commons Clause” to Apache-2.0

v1.16.0 (10/01/2022)

  • CSP fix
  • custom sequence, UID, and status support
  • bundle size optimization

v1.15.5 (09/17/2022)

  • Fixing an issue where a missing description would make the invalid.

v1.15.4 (09/17/2022)

  • Fixing multiple edge case issues
  • Fixing broken custom option labels
  • New optional flat style
  • Forcing Apple instead of iCal option on iOS

v1.15.3 (09/14/2022)

  • Google calendar GMT time zone fix
  • dependency updates
  • better build process

v1.15.2 (09/13/2022)

  • Bundle size optimization
  • Style updates

v1.15.1 (09/08/2022)

  • Catching misspelled JSON input errors
  • Fixing small rich data issue with recurring events

v1.15.0 (09/07/2022)

  • more stable time zone management via our own TimeZones iCal Library
  • more languages
  • easier recurrence
  • better support (incl. images)
  • organizer information

v1.14.6 (08/26/2022)

  • Minor fixes optimizing iCal distribution and tests.

v1.14.5 (08/24/2022)

  • Dependency updates
  • Supporting more languages (incl. arabic RTL)

v1.14.4 (08/17/2022)

  • Bugfixes
  • Style optimizations

v1.14.3 (08/10/2022)

  • Fixing a bug, where checking for mobile usage with react implementation failed

v1.14.2 (08/10/2022)

  • Fixing a bug, where the dropdown gets misplaced in some edge cases

v1.14.0/1 (08/09/2022)

  • better keyboard navigation
  • dynamic dropdown, automatically adjusting to the screen
  • new option to adjust size
  • Microsoft mobile bug (temporary) workaround
  • fixes and code refactoring

v1.13.2 (07/29/2022)

  • Bugfix

v1.13.0 (07/28/2022)

  • Introducing smart adaptive dark mode
  • Bug fixes
  • Some code refactoring (preparing future functionalities)

v1.12.0 (07/27/2022)

  • style updates
  • better input sanitization
  • webView edge case support
  • text block overwrite option

v1.11.4 (07/21/2022)

  • support HTML in ics files

v1.11.3 (07/21/2022)

  • endDate no longer required
  • multiple bug fixes

v1.11.2 (07/19/2022)

  • css bug fixes

v1.11.1 (07/18/2022)

  • Bugfixes
  • small optimizations

v1.11.0 (07/16/2022)

  • A billion bug fixes for better cross browser, OS, and device support.
  • Solution for Instagram in-app browser not downloading ics files.
  • Option to make the background transparent.
  • Option to set language for system text.
  • Recurring optimization (still missing full iCal timezone support).
  • Text option for URLs.
  • Catch for 1-option buttons, where we hide the dropdown.
  • Optimization of keyboard input.
  • General performance optimization.
  • New linting rules.
  • Better element id handling for more stable tracking support.
  • Option to explicitly provide an ics file for more stable support.
  • Re-rendering of dropdown on screen resize instead of closing it.
  • [Breaking] Reset the style to the initial plain on. 3D option still available as backup.

v1.10.1 (07/06/2022)

  • Minor bugfix

v1.10.0 (07/05/2022)

  • [Breaking!] Dropped the input
  • Instead, now auto-generating for every button
  • Optimized Readme and especially React examples

v1.9.1 (07/01/2022)

  • Bug fixes (e.g. hyperlinks being cut off) and security patches (incl. linter)

v1.9.0 (06/29/2022)

  • A lot of bug fixes and improvements.

v1.8.10 (06/15/2022)

  • Added a script to easily bump the version number and build the project all in one.

v1.8.9 (06/10/2022)

  • Buttons now have type=”button”

v1.8.8 (06/09/2022)

  • CSS fixes for better performance and iOS support.

v1.8.7 (06/08/2022)

  • Security patch for grunt dependency

v1.8.6 (05/06/2022)

  • Minor CSS animation fix

v1.8.5 (05/05/2022)

  • Fixes problems with full-day events over different timezones.

v1.8.4 (04/30/2022)

  • Security patch for grunt

v1.8.3 (04/23/2022)

  • Minor style fixes
  • Closing lists on screen resize

v1.8.2 (04/19/2022)

  • Bugfixes

v1.8.1 (04/18/2022)

  • Fixing 3D issues with Safari

v1.8.0 (04/18/2022)

  • New button style on hover as well as smaller changes to the code structure as well as some fixes.

v1.7.7 (04/15/2022)

  • Optimizing it for touch. No longer closing an open list when only scrolling.

v1.7.5 (04/10/2022)

  • Stripping HTML tags (except) to clean up any mess external tools (e.g. Apple’s Safari or Browser extensions) might do to the JSON.

v1.7.4 (04/09/2022)

  • Extending the date+time support from setups to all implementations.
  • Auto-cleaning date and time strings from seconds and milliseconds.

v1.7.3 (04/09/2022)

  • Adding css files to export statement.
  • test step to support server side rendering
  • Minor fixes

v1.7.2 (03/17/2022)

  • Fixing some styling issues
  • Optimizing code structure

v1.7.1 (03/17/2022)

  • Fixes and changes to new v1.7 export magic.

v1.7.0 (03/17/2022)

  • Rework of general code structure
  • New way to use the logic with custom elements/buttons
  • tons of optimization

v1.6.4 (03/14/2022)

  • Fixing bugs, which broke events that missed description or location

v1.6.3 (03/08/2022)

  • bug fixes, import optimization

v1.6.2 (03/04/2022)

  • Removing real in-code line breaks before parsing the innerHTML JSON to prevent parsing errors. You can still add line breaks to the description in the documented way (using or \n explicitely)

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