iCalendar Sync
Merge up to 3 iCal feeds into one permanent export URL for Airbnb, VRBO, Booking.com, Google Calendar, or any iCal-compatible import. Free, no account needed.
Paste your iCal URLs above, then generate your combined feed.
iCal calendar sync is the practice of sharing booking availability between platforms using the iCalendar (.ics) standard, so a date blocked on one channel automatically shows as unavailable on the others. Vacation rental hosts use it to keep Airbnb, VRBO, Booking.com, and Google Calendar aligned and avoid double bookings.
This free tool merges several iCal export URLs into one combined feed you can import everywhere. For sync health monitoring, a website availability calendar, and commission-free direct bookings on the same synced calendar, it is built by RentalBeam.
Three steps to unified calendar sync
Add your Airbnb, VRBO, or Booking.com iCal export URLs (up to 3).
One click. Your feeds are merged into one permanent export URL.
Paste the one URL into every platform. All calendars stay in sync.
Avoid double bookings
And how one combined iCal feed helps prevent them.
Airbnb, VRBO, and Booking.com each sync calendar data on their own schedule - sometimes waiting hours between updates. During that gap, a date booked on one platform still appears available on others.
By combining all your platform calendars into one feed and importing that single URL back into each platform, every platform sees the blocked dates from every other platform. This drastically reduces the sync window and the chance of overlapping reservations.
This tool generates your combined feed URL for free. For additional control - custom date blocking, visual calendars for your website, and a direct booking form - explore RentalBeam.
Find your iCal URL
Step-by-step for each major platform, then paste each URL into the tool above.
No. RentalBeam Pro takes zero commission and adds no RentalBeam booking fee - your direct booking revenue is 100% yours. The booking form widget, guest payment workflow, coupon codes, seasonal pricing, custom fields, and booking rules are all included. The only cost when a guest pays by card through RentalBeam is the standard Stripe card-processing fee, which is paid to Stripe, not RentalBeam. Inquiry-only and pay-later flows have no per-transaction cost.
No. RentalBeam never takes a commission on your booking revenue on any plan, and Pro adds no RentalBeam booking or application fee. If a guest pays by card through RentalBeam, only the standard Stripe card-processing fee applies - that fee goes to Stripe, the same as any payment processor. Inquiry-only, pay-later, and off-platform bookings (such as bank transfer) have no per-transaction cost at all.
Yes. RentalBeam Pro includes coupon codes, percentage and fixed-amount discount rules, and seasonal pricing tiers. You can run promotional codes for repeat guests, configure off-season discounts, and combine them with custom fees and booking rules from the same booking form widget setup.
Yes. On Pro, every booking notification email includes a reply address linked to that booking. Reply in Gmail, Apple Mail, or any email app and your message goes to the guest. When they reply, it comes back to your inbox and is saved in the dashboard Messages tab. Your personal email address is never shared with the guest.
Export the iCal (ICS) link from your Airbnb listing under Availability settings, then paste it into RentalBeam to get an embeddable availability calendar for your website. Add your VRBO and Booking.com iCal links too and RentalBeam merges them into one feed, so every blocked date from every platform shows on your site automatically and you avoid double-bookings. It is free to start and works on Wix, Squarespace, WordPress, Webflow, or plain HTML.
It combines multiple iCal/ICS calendar feeds into one URL. Paste your Airbnb, VRBO, and Booking.com calendar export URLs, and you get a single combined URL you can import anywhere. All blocked dates from every platform appear in one feed.
Yes, completely free with no account required. Paste your URLs, click generate, and use the combined URL immediately. For advanced features like custom colors, date blocking, and a booking form widget, you can create a free RentalBeam account.
No. Your combined URL is permanent and updates automatically whenever your booking platforms update their calendars. You can safely paste it into Airbnb, Google Calendar, or any other tool that accepts iCal imports.
In Airbnb, go to your listing, open the Availability tab, scroll to "Connect calendars", and click "Export Calendar". Copy the URL that starts with https://. The same process works for VRBO (under Calendar Settings) and Booking.com (under Calendar & Pricing > Sync calendars).
Double bookings occur when booking platforms fail to sync calendars quickly enough. Airbnb, VRBO, and Booking.com use iCal feeds as the sync mechanism, but each platform fetches updates on its own schedule - sometimes hours apart. During that gap, a date that was just booked on one platform still appears available on others. RentalBeam narrows that gap on your own site: it refreshes imported availability at most every 30 minutes, and when you take instant payments through the booking widget it re-checks live availability the moment a guest confirms, before the reservation is accepted.
Yes. Use the "Import calendar" feature on each platform and paste your combined URL. This way each platform sees the blocked dates from all your other platforms, reducing the risk of double bookings.
This free tool combines up to 3 iCal sources into one URL, and that combined URL works without a RentalBeam account. If you want to save the feed to a RentalBeam dashboard, the free plan keeps 1 iCal source per calendar; Plus and Pro raise that to 10 sources per calendar for multi-platform hosts on Airbnb, VRBO, Booking.com, Google Calendar, and other iCal-compatible platforms.
No. iCal feeds only contain blocked date ranges. No guest names, emails, phone numbers, or contact information is included. Your combined feed shows the same date-level information as the original platform exports.
RentalBeam is the platform behind this tool. It offers embeddable availability calendar widgets and direct booking forms for vacation rental websites. Creating a free RentalBeam account gives you a dashboard to manage your sync feeds, customize calendar appearance, block dates manually, and accept direct bookings - all without commissions.
Learn more about iCal sync and vacation rental calendars
RentalBeam handoff
RentalBeam gives vacation rental hosts a full sync dashboard, an embeddable availability calendar, and a direct booking form - no expensive PMS, no OTA redirect.
Sync health monitor
Healthy, Stale, or Error status for each source with exact last-sync timestamps.
iCal export URL
Combine your sources, custom blocked dates, and bookings into one shareable feed.
Export access tracking
See when Airbnb, Google Calendar, or VRBO last fetched your URL, and how often.
Custom date blocking
Block owner stays or maintenance with labels and colors. Overrides imported data.
Embeddable calendar widget
Show live availability on your own site with a responsive, branded widget.
Direct booking form (Pro)
Take reservations with pricing, fees, rules, custom fields, and optional card payments.