kaymanmk

CalDav Calendar Viewer fetches and displays events from any standard iCal (.ics) feed directly on your site using a simple shortcode. It supports multiple calendar feeds, each with its own URL and optional username/password for authenticated endpoints.
Key Features:
<ul>
<li>Multiple Calendar Feeds – Configure as many feeds as you need, each with a unique ID.</li>
<li>iCal / RFC 5545 Support – Parses standard <code>.ics</code> calendar feeds including all-day events, times, locations, and descriptions.</li>
<li>Recurring Events – Expands RRULE recurrences (DAILY, WEEKLY, MONTHLY, YEARLY) including BYDAY, BYMONTHDAY, INTERVAL, COUNT, UNTIL, and EXDATE.</li>
<li>DURATION Support – Derives the end time from a <code>DURATION</code> property when <code>DTEND</code> is absent.</li>
<li>Basic Authentication – Supply a username and password per feed for protected calendars.</li>
<li>Encrypted Credentials – Passwords are stored using AES-256-CBC encryption in the database.</li>
<li>Caching – Configurable cache lifetime reduces external HTTP requests (defaults to 1 hour).</li>
<li>Cache Management – View the number of currently cached feed entries and clear them with one click from the admin settings page.</li>
<li>Async Loading – Calendar events are fetched via AJAX so the containing page renders immediately.</li>
<li>Label / Category Filtering – Filter events by iCal <code>CATEGORIES</code> labels using the <code>label</code> shortcode attribute. 
Accepts a comma-separated list; all plain labels must be present on an event for it to be shown. 
Prefix a label with <code>!</code> to exclude events that carry that category. Matching is case-insensitive.</li>
<li>Clickable Events – Events that carry a <code>URL</code> property in the iCal feed are rendered as clickable links.</li>
<li>7-Day Rolling Window – Automatically fetches and displays only the next 7 days of events.</li>
<li>Responsive Event List – Clean event list layout that adapts to all screen sizes.</li>
<li>Event Tooltips – Hover over an event to see its description.</li>
<li>Description Prefix Filtering – Remove lines from event descriptions that start with configurable prefixes. Useful for hiding internal metadata added by calendar applications.</li>
</ul>
<h3>Configuration</h3>
Navigate to Settings → CalDav Calendar Viewer in the WordPress admin panel.
<h4>Adding a Feed</h4>
Click + Add Feed and fill in:
<ul>
<li>Feed ID – A unique lowercase identifier (letters, numbers, hyphens, underscores) used in the shortcode.</li>
<li>iCal Feed URL – The full URL to the <code>.ics</code> calendar feed.</li>
<li>Username – Username for Basic Authentication. Leave blank for public feeds.</li>
<li>Password – Password for Basic Authentication. Stored encrypted. Leave blank to keep the current value.</li>
</ul>
You can configure multiple feeds — each gets its own ID.
<h4>General Settings</h4>
<ul>
<li>Cache Lifetime (seconds) – How long fetched calendar data is cached. Set to <code>0</code> to disable caching. Default: <code>3600</code> (1 hour).</li>
<li>Description Line Prefixes to Remove – Newline-separated list of prefixes. Any line in an event’s description that starts with one of these prefixes is removed from the tooltip. Useful for hiding internal metadata added by calendar apps (e.g. <code>X-APPLE-</code>, <code>Reminder:</code>).</li>
</ul>
<h4>Cache Management</h4>
The settings page shows how many calendar feeds are currently cached. Use the Clear Cache button to delete all cached responses and force fresh fetches on the next page load.
<h3>Usage</h3>
<h4>Basic Shortcode</h4>
<pre><code>[caldcavi_calendar id="my-feed"]
</code></pre>
<h4>Shortcode Attributes</h4>
<ul>
<li><code>id</code> (required) – The feed ID configured in Settings → CalDav Calendar Viewer.</li>
<li><code>label</code> (optional) – A comma-separated list of iCal <code>CATEGORIES</code> values to filter events by. All plain labels 
must be present on an event for it to be shown. Prefix a label with <code>!</code> to exclude events that carry that category. 
Matching is case-insensitive. Omit to show all events.</li>
</ul>
<h4>Examples</h4>
<pre><code>[caldcavi_calendar id="team-calendar"]

[caldcavi_calendar id="hr-events"]

[caldcavi_calendar id="team-calendar" label="Work"]

[caldcavi_calendar id="team-calendar" label="Work,Important"]

[caldcavi_calendar id="team-calendar" label="Work,!Cancelled"]

[caldcavi_calendar id="team-calendar" label="!Private"]
</code></pre>

CalDav Calendar Viewer

Displays events from iCal (.ics) feeds in a responsive list. Supports recurring events, multiple feeds with Basic Auth and encrypted credentials.

Annovisio

Works with public iCalendar/ICS feeds from Google Calendar, Microsoft Outlook, Apple Calendar, and other calendar apps.
AnnoVisio Event Overview turns one public iCalendar/ICS feed into a clean yearly event overview. The feed can be configured with its own calendar name and color. The year grid is the default view, and event bars open a local details dialog with title, date, calendar name, description, event URL when available, and the calendar page URL. Version 1.0 displays the shortcode page itself as the archive. It does not create event posts, event detail pages, account connections, Google OAuth connections, Calendly integrations, or write access to any calendar.
Use the shortcode:
<pre><code>[annovisio-event-overview]
</code></pre>
The plugin fetches one configured public ICS feed server-side with the WordPress HTTP API and normalizes the parsed event data into a WordPress transient. The configured calendar name and color are applied when the overview is rendered, so changing these display settings does not require a new feed fetch. No external frontend assets are loaded.
<h3>External services</h3>
This plugin connects to the public iCalendar/ICS feed URL configured by the site administrator. The feed can come from any calendar provider that offers a public iCalendar/ICS feed URL, for example Google Calendar, Microsoft Outlook, Apple Calendar, or another compatible calendar system. The URL is requested from the WordPress server using the WordPress HTTP API when the cache is empty or when an administrator uses the manual refresh action.
The requested calendar provider receives the server request, including normal HTTP request metadata such as IP address and user agent. The plugin does not send visitor data to the feed URL from the browser and does not load external frontend assets.
Administrators should only configure a public iCalendar/ICS feed URL whose provider, terms of service, and privacy policy are acceptable for their website.

AnnoVisio Event Overview

Turn event calendars into clear, beautiful overviews for your website.

CalDav Calendar Viewer vs AnnoVisio Event Overview