The best website platform for hosting a calendar with RSVP events depends on your tech comfort level and whether you want the calendar to live on your existing site or on a standalone page.

Best overall: use your existing website + AddEvent

The cleanest approach for most organizations is to embed AddEvent's calendar widget and RSVP forms on your existing website, regardless of which platform it is built on. AddEvent generates embeddable widgets that work via copy-paste HTML on WordPress, Squarespace, Wix, Webflow, Framer, Carrd, Kajabi, and any other platform that accepts custom HTML.

This way your events and RSVP forms live inside your brand's existing site without needing a separate platform.

By platform

WordPress - The most flexible option. AddEvent has a free official WordPress plugin. Also works with The Events Calendar plugin for event display, paired with AddEvent for calendar engagement and RSVP.

Squarespace - Paste AddEvent's embed code into a Code Block. Squarespace's native scheduling tool (Acuity) handles appointment booking but not public event calendars with subscriptions.

Wix - AddEvent has a dedicated Wix Events Calendar app. Full calendar display, individual Add to Calendar buttons, and Follow Calendar subscription in one install.

Webflow - Paste AddEvent's embed code into an Embed component. Works well for design-heavy sites where visual consistency matters.

Kajabi / Thinkific - Course and membership platforms with Custom Code blocks. AddEvent embeds work for displaying course schedules and live session calendars.

Standalone event calendar sites

If you want a dedicated event listing site without building one:

• AddEvent's hosted calendar landing page - AddEvent automatically creates a branded landing page for each calendar at a shareable URL. Includes event listings, Follow Calendar button, and optional subscriber form.
• Luma - Event-focused platform with built-in RSVP and calendar features, popular for community events.