by Room 34 Creative Services, LLC 4.9 (72 reviews)

ICS Calendar

Name: ICS Calendar
Rating: 4.9 (72 reviews)
Author: Room 34 Creative Services, LLC

Add the calendar you already use to any WordPress site! Google Calendar, Microsoft 365, iCloud and more… no API keys or complicated setup required.

ICS Calendar ranks #1,493 among WordPress.org plugins with 10,000+ active installations, is #36 of 1,880 in the Calendar & Events category, a 4.9/5 rating from 72 reviews, and was last updated Sep 3, 2026. Data from WordPress.org, refreshed twice daily — see methodology.

Compatible with WP 7.1

v12.1.3.2 Current Version v12.1.3.2

Updated 1 week ago Last Update on 03 Sep, 2026

Refreshed 11 hours ago Last Refreshed on

#36 of 1,880 in Calendar & Events Top 5% by installs Downloads -82.9% this week Actively maintained

View on WordPress.org

Rank

#1,493

-1 this week

Active Installs

10K+

-47.1%

KW Avg Position

— No change

Downloads

1.8M

+44 today

Support Resolved

100%

— No change

Rating

98%

Review 4.9 out of 5

4.9 (72 reviews)

Next Milestone 20K

Total Progress 91%

10K+ 20K+

Ranks to Climb

Growth Needed

8,000,000

Active Installs

Pro

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Need 899 more installs to reach 20K+

Rank Changes

Current #1,493

Change

Best #

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Active Installs Growth

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Active Installs 0,000,000+

Growth +0.0%

Peak 0,000,000

Downloads Growth

Downloads

Growth

Peak

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Reviews & Ratings

4.9

72 reviews

Overall 98%

69 (96%)

2 (3%)

0 (0%)

1 (1%)

0 (0%)

Support Threads Overview

Resolved

Unresolved

Total Threads

Resolved

Unresolved

100%

Resolution Rate

Security History

Source: WPVulnerability

5 known vulnerabilities on record · 2 in the last 24 months · checked 1 week ago

Jul 9, 2026

ICS Calendar [ics-calendar] < 12.0.9.2

CVE-2026-9838 · Fixed in v12.0.9.2
Jul 9, 2026

ICS Calendar [ics-calendar] < 12.1.1.1

CVE-2026-59516 · Fixed in v12.1.1.1
Oct 26, 2023

ICS Calendar [ics-calendar] < 10.12.0.3

CVE-2023-46784 · Fixed in v10.12.0.3
Oct 23, 2023

ICS Calendar [ics-calendar] < 10.12.0.2

CVE-2023-46784 · Fixed in v10.12.0.2
ICS Calendar [ics-calendar] < 12.1.1.1

Fixed in v12.1.1.1

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Plugin Details

Version: 12.1.3.2
Last Updated: Sep 03, 2026
Requires WP: 5.3+
Tested Up To: 7.1
PHP Version: 7.4 or higher
Author: Room 34 Creative Services, LLC

Support & Rating

Rating: ★ ★ ★ ★ ★ 4.9
Reviews: 72
Support Threads: 2
Resolved: 100%

Keywords

calendar events google ics microsoft

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TL;DR

AI summary of the plugin's readme

This plugin is for WordPress site owners who want to display their existing calendar (Google Calendar, Microsoft 365, iCloud, and similar) on their site. It solves the problem of manually recreating calendar events by auto-syncing any public iCalendar (ICS) feed into a WordPress calendar without requiring API keys.

Shortcode-based calendar embedding
Month, list, or week view
Auto-updating calendar feed
No API keys required
Live preview tool
Online shortcode builder
Built-in translation files
Automatic date/time localization

Frequently Asked Questions

Common questions about ICS Calendar

Different calendar systems have different ways to obtain the feed URL. You may need to consult your calendar software's documentation for assistance. Find instructions for commonly used calendars below. You will also need to make sure that your calendar is public. Private calendars cannot be accessed by this plugin.

Google Calendar Microsoft Office 365 Apple iCloud

Use this shortcode, inserting your ICS feed URL between the quotation marks: [ics_calendar url=""] Be sure you are using the iCalendar subscription (ICS) URL (i.e. for importing into a calendar program), not the URL for viewing a calendar in a web browser. To test if you have the correct URL, paste it directly into your browser address bar. It should download an .ics file, not display the calendar in the browser.

Yes! You can combine multiple calendars by including more than one feed URL in the url parameter. Separate the calendar URLs with one space or a pipe | character. Do not include any other delimiter characters, as they will be interpreted as part of the URL.

This may be due to your server's configuration. This plugin requires either the PHP cURL extensions, or the allow_url_fopen PHP setting to be turned on. Check your PHP configuration or your server administrator if you think this may be the issue. You can also use the ICS Feed URL Tester utility on the ICS Calendar admin page to check if your server is able to connect to the calendar source.

For performance, this plugin uses WordPress transients to store retrieved calendar data for one hour between requests to the calendar source server. If you have updated events that are not showing up in your page, visit the ICS Calendar page in your site admin and click the Clear Cached Calendar Data button. Third-party caching plugins may interfere with ICS Calendar's feed syncing. ICS Calendar uses AJAX to work around most caching conflicts, but your caching plugin may require you to add the wp-admin/admin-ajax.php path to its list of exclusions in order for AJAX to function properly.

PHP has two different ways of defining timezones: as a number of hours offset from GMT/UTC (e.g. "UTC-5"), or as a continent/city combination (e.g. "America/Chicago"). Timezones using UTC offsets do not handle Daylight Saving Time correctly (as noted in the PHP documentation). Please check your WordPress timezone settings (Settings > General > Timezone). If it is set to a UTC offset, change it to the city closest to your location, in the same timezone. You can also set the timezone within the shortcode using the tz parameter. (Again, be sure to use a named region/city timezone, not a UTC offset.) Additional documentation and support Our User Guide includes extensive documentation of all features of the plugin, is frequently updated, and is translated into all languages supported by the plugin. Feature requests The paid ICS Calendar Pro add-on includes additional layout options, tools for customizing the calendar's appearance more easily than directly editing CSS, an improved insertion tool, and more. We are also constantly adding new features and refinements to both the free and paid versions. If you have suggestions for features you'd like to see or any other additional input, please let us know by following the support link on the admin page or in the WordPress support forums! The base plugin will always be free to use.