Add to Calendar Button vs WebCalendar

Make your events get saved. This WordPress plugin lets you create beautiful buttons with calendar links, where people can add events to their calendars. All of this with just a few clicks and highly customizable, using the popular Add to Calendar Button script. Check out the official website for a comprehensive demo and overview. 🛠️ INTEGRATED IN SECONDS You can either use the shortcode [add-to-calendar-button] or the Gutenberg Block. With the PRO version, it only takes the ID to make it fly. In the no-PRO case, you simply place the necessary attributes directly in the shortcode, or at the Gutenberg Block settings. (Mind that you cannot use ‘[‘ and ‘]’ characters, when going for the shortcode option! For content formatting, you can use {‘{‘}xxx{‘}’} instead of [xxx] there.) 🚀 GO PRO Go even further with the PRO version… → Manage all details and styling via a convenient web app. → Use the same button to let people RSVP to your events – fully managed. → Get auto-generated landing pages and shareable links for your events. → Have better guidance for your users, when they add events to their calendars and things don’t go as expected. 👉 Learn more at add-to-calendar-pro.com. ✨ SUPPORTED CALENDARS Google Calendar. Yahoo Calender. Microsoft 365, Outlook, and Teams. Automatically generated iCal/ics files (for all other calendars, like Apple). 📆 SUPPORTED EVENT TYPES Timed and all-day events. One-time, multi-date, recurring. Most robust time zone and daylight saving management. Dynamic dates (like “today + 3”). 🎨 ADJUST THE LOOK The button comes with multiple themes as well as a dark and light mode. You can easily adjust almost every element by setting the respective simple attributes. In case you want to go all-in, you can also manipulate all kinds of colors and further styling. 🖖 EXPERT ACCESSIBILITY Optimized and adjustable UX (for desktop and mobile). Dynamic dropdown positioning. Taking care of all those edge cases, where some scenarios do not support specific setups (like WebView blocking downloads); utilizing beautiful user guidance workarounds. Auto-generated Schema.org rich (structured) data for better SEO. Full support for mouse, touch, or keyboard input (W3C WAI compliant). Aside from the WordPress editor, the button itself supports 20+ languages, incl. RTL text for Arabic; but also offers the option to customize all labels and text blocks. 📄 ABOUT THE LICENSE Mind that the script to actually generate the Add to Calendar Button uses the Elastic License 2.0 (ELv2)! This usually comes with no restrictions for you, but it forbids you to rework the core script and provide the product (generating an add-to-calendar-button) to others as a managed service. In almost every case, this will not affect you. If you are not sure, because you are building some kind of SaaS, where you are using the plugin, simply contact us.

WebCalendar gives your WordPress site a clean, responsive calendar with the features you actually need — recurring events, iCal import, holiday imports, email reminders, and fine-grained permissions — without the complexity. Calendar Views & Display Month, week, and day views with smooth AJAX navigation — no page reloads Responsive design that adapts to any theme and screen size Color-coded categories for visual organization Gutenberg blocks (Calendar + Upcoming Events) and [webcalendar] shortcode Event Management Recurring events — daily, weekly, monthly, and yearly patterns with RRULE support Edit a single instance or the entire series File attachments via the WordPress Media Library Public, Private, and Confidential visibility levels Filter the calendar by tag, and jump straight to what visitors are looking for Venues and organizers — reusable places and contacts, managed in one screen, shown on every event page Custom event fields — text, dates, drop-downs and more, defined once and filled in on every event Online and hybrid events with a “Join online” link, separate from the physical location Conflict detection warns you about overlapping events (Starter+) Filter the calendar by venue and organizer (Starter+) Import, Export & Sync Import .ics files from Google Calendar, Outlook, Apple Calendar, or any iCal source One-click migration from The Events Calendar — venues, organizers, categories, images and recurring events, with undo Side-by-side trial: run WebCalendar next to The Events Calendar with scheduled one-way sync, then switch — or remove everything in one click Export your calendar in iCalendar format Import public holidays for any country Subscribe to remote iCal feeds with automatic hourly sync (Starter+) Collaboration & Permissions Invite WordPress users to events with email notifications Event reminders via WP-Cron 36 granular capabilities mapped to WordPress roles — control who can view, create, edit, and manage events Multi-user calendar filtering and shared calendar views Frontend event submissions with admin approval queue (Starter+) Category merging for cleaning up duplicate categories (Business+) SEO & Sharing Single event pages with SEO-friendly permalinks Schema.org Event JSON-LD, Open Graph, and Twitter Card meta tags Social share buttons and “Add to Google/Outlook/Yahoo” one-click buttons AI Integration Built-in MCP server lets AI assistants (Claude, ChatGPT, etc.) manage your calendar — free on every edition AI admin page with connection wizard, tools reference, and one-click testing WordPress Abilities API integration for WP 6.9+ For Developers Full REST API for events, categories, holidays, layers, and shared calendars Built on Clean Architecture with webcalendar-core business logic library PSR-4 autoloading, PHPStan Level 9, 1400+ automated tests All calendar data in dedicated webcal_* tables — no Custom Post Types Technical Note: Database Architecture This plugin integrates webcalendar-core, a framework-agnostic Composer library that provides all calendar business logic (events, recurrence, iCal, permissions) through 17 repository classes. These repositories require PDO and use exclusively parameterized prepared statements — no raw SQL concatenation. WordPress-specific data (users, options, capabilities) is accessed via $wpdb through the plugin’s Bridge layer (WpUserRepository, WpConfigRepository, etc.). See src/Bridge/PdoFactory.php for the connection factory. External Services This plugin connects to the following third-party services: Nager.Date API Used for importing public holidays via WebCalendar > Holidays. * Endpoint: https://date.nager.at/api/v3/ * Privacy Policy Google Calendar Public Feeds Alternative holiday source. Fetches public .ics files from Google. * Endpoint: https://calendar.google.com/calendar/ical/ * Google Privacy Policy * Google Terms of Service Thunderbird Holiday Calendars Alternative holiday source via community-maintained .ics files. * Endpoint: https://www.thunderbird.net/media/caldata/ * Mozilla Privacy Policy Freemius License Server Used for license validation, automatic updates, and optional usage analytics. * Endpoint: https://api.freemius.com/ * Privacy Policy * Terms of Service * Data transmitted: license key, site URL, plugin version, WordPress version OpenStreetMap / Nominatim When a single event page has a location and the map provider is set to OpenStreetMap (the default), the plugin geocodes the address via the Nominatim API and displays a map using OpenStreetMap tile servers. The event location string is sent as a search query. No user personal data is transmitted. * Geocoding endpoint: https://nominatim.openstreetmap.org/search * Tile server: https://tile.openstreetmap.org/ * OpenStreetMap Terms of Use * Nominatim Usage Policy * OpenStreetMap Privacy Policy Google Maps Embed API When the map provider is set to Google Maps in settings, single event pages display an embedded Google Map for the event location. The event location string and your Google Maps API key are sent to Google. No other user data is transmitted. * Endpoint: https://www.google.com/maps/embed/v1/place * Google Maps Platform Terms of Service * Google Privacy Policy Add to Calendar Links Single event pages include “Add to Calendar” buttons that generate links to Google Calendar, Outlook.com, and Yahoo Calendar. When a visitor clicks a button, the event title, date, time, location, and description are passed as URL parameters to the chosen service. No data is sent until the visitor clicks. * Google Calendar: https://www.google.com/calendar/render * Outlook.com: https://outlook.live.com/calendar/0/action/compose * Yahoo Calendar: https://calendar.yahoo.com/ Social Sharing Links Single event pages include social sharing buttons for Facebook, X (Twitter), and LinkedIn. When a visitor clicks a button, the event page URL and title are passed as URL parameters to the chosen service. No data is sent until the visitor clicks. * Facebook: https://www.facebook.com/sharer/sharer.php * X (Twitter): https://x.com/intent/tweet * LinkedIn: https://www.linkedin.com/sharing/share-offsite/ Development & Source Code Full unminified source for this plugin is included in this distribution under GPL-2.0-or-later — you do not need to download anything external to rebuild the compiled assets. What ships in this zip: src/ — unminified React/JSX source for all admin components, frontend calendar, and the mini-calendar widget build/ — the pre-compiled minified bundles (what the plugin actually loads at runtime) package.json + package-lock.json — Node build manifest and lockfile for reproducible npm install composer.json — PHP dependency manifest Rebuilding the compiled assets from source: Prerequisites: PHP 8.1 or higher with Composer 2, Node.js 20 or higher with npm 10. composer install — install PHP dependencies npm install — install JavaScript build dependencies (@wordpress/scripts, React, Toast UI Calendar, Leaflet, Tiptap) npm run build — compile src/index.js and src/frontend.js into the minified bundles under build/ The compiled output in build/ is byte-reproducible from the matching src/ at the same version using this toolchain.