Hydrogen Calendar Embeds
by LBell 4.5 (6 reviews)

Hydrogen Calendar Embeds

The free, simple, lightweight way to embed beautiful, fully customizable ICS calendars into your WordPress site.

Hydrogen Calendar Embeds ranks #6,083 among WordPress.org plugins with 1,000+ active installations, is #141 of 2,134 in the Calendar & Events category, a 4.5/5 rating from 6 reviews, and was last updated Oct 25, 2026. Data from WordPress.org, refreshed twice daily — see methodology.

Compatible with WP 7.1.4
v3.0.4 Current Version v3.0.4
Updated 1 week ago Last Update on 25 Oct, 2026
Refreshed 1 week ago Last Refreshed on
#141 of 2,134 in Calendar & Events Top 10% by installs Downloads -68.5% this week Actively maintained
View on WordPress.org
Rank
#6,083
— No change
Active Installs
1K+
— No change
KW Avg Position
69
0.6 worse
Downloads
6.7K
+11 today
Support Resolved
100%
— No change
Rating
90%
Review 4.5 out of 5
4.5 (6 reviews)

Next Milestone 2K

Total Progress 48.9%
1K+ 2K+
1,063
Ranks to Climb
-
Growth Needed
8,000,000
Active Installs
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Rank Changes

5,779 5,931 6,083 6,235 6,387 31-10-2026 01-11-2026 02-11-2026 03-11-2026 04-11-2026 05-11-2026 06-11-2026 07-11-2026
6,088 6,097 6,106 6,115 6,124 23-10-2026 24-10-2026 25-10-2026 26-10-2026 27-10-2026 28-10-2026 29-10-2026 30-10-2026 31-10-2026 01-11-2026 02-11-2026 03-11-2026 04-11-2026 05-11-2026 06-11-2026 07-11-2026
Current #6,083
Change
Best #

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Active Installs Growth

Active Installs 0,000,000+
Growth +0.0%
Peak 0,000,000

Downloads Growth

10 20 30 40 50 60 70 31-10-2026 01-11-2026 02-11-2026 03-11-2026 04-11-2026 05-11-2026 06-11-2026 07-11-2026
0 100 200 300 400 500 600 23-10-2026 24-10-2026 25-10-2026 26-10-2026 27-10-2026 28-10-2026 29-10-2026 30-10-2026 31-10-2026 01-11-2026 02-11-2026 03-11-2026 04-11-2026 05-11-2026 06-11-2026 07-11-2026
Downloads
Growth
Peak

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Reviews & Ratings

4.5
6 reviews
Overall 90%
5
5 (83%)
4
0 (0%)
3
0 (0%)
2
1 (17%)
1
0 (0%)

Support Threads Overview

Resolved
Unresolved
2
Total Threads
2
Resolved
0
Unresolved
100%
Resolution Rate

Security History

Source: WPVulnerability

No known vulnerabilities on record for Hydrogen Calendar Embeds. Checked 3 months ago.

TL;DR

AI summary of the plugin's readme

This plugin is for WordPress site owners who want to display calendar events on their site without paying for premium features. It solves the problem of embedding external ICS/iCal calendar feeds, such as Google Calendar or Outlook, into a page without needing API keys or complex setup.

  • Embeds any ICS/iCal feed
  • Combines multiple ICS feeds
  • Embed multiple calendars per page
  • Multiple view options (Grid, Month List, Day List, Year List)
  • Locale support
  • WordPress Block or Shortcode setup
  • No API keys required
  • Custom CSS classes for styling

Frequently Asked Questions

Common questions about Hydrogen Calendar Embeds

Hydrogen Calendar Embeds implements the excellent Full Calendar for you, and tosses in a little Tippy.js and Popper to make things... well... pop.
No. All calendar events are maintained via your calendar source (Google Calendar, iCloud, Outlook, Airbnb, Clickup, etc.). This plugin just displays them beautifully.
Each calendar gets its own CSS selector: hycal-event-# where the # is the order of the listed calendar (starting with 0). So if you have two calendars in one, you can use hycal-event-0 to style the first, and hycal-event-1 to style the second calendar. If you use the cal_ids argument to set custom identifiers, those will be used instead of numeric indexes. For example, if you set cal_ids="soccer,baseball", you can use .hycal-calendar-soccer-event and .hycal-calendar-baseball-event to style each calendar's events specifically. Event pop-up tooltips also have calendar-specific classes: hycal-calendar-0-event-popup for easier styling of event pop-ups per calendar.
Add custom CSS to your theme to tweak to your desire.
Probably! With the fc_args parameter, you can pass in any FullCalendar argument to customize your calendar. See the FullCalendar documentation for a full list of options: https://fullcalendar.io/docs Contact me for requests for additional functionality, and let's see what we can create together!

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