Each example below uses the real OpenCal calendar. Blue blocks are open times.
Sam is a recruiter. He needs 30 minutes with Maya this week.
Maya sends her link. Sam signs in and sees only the times they are both free.
He books Thursday at 11:00. The booking is saved for both of them.
Ana, Leo, Priya and Jordan share a class project. They need one hour together before the deadline.
Ana adds the other three by their OpenCal names. Blue blocks are times all four are free.
She copies Tuesday at 2:30 into the group chat.
Noor, Dev, Sofia and Malik want to plan a spring trip. First they need a 45-minute call.
Noor’s link shows only her evenings and weekends. She adds her three friends.
OpenCal shows the two weekend times all four are free. She copies Saturday at 11 into the chat.
Elena is a freelance illustrator in New York. Clara is a new client in Berlin.
Elena sends a one-time link. Clara sees Elena’s times in Berlin time and books as a guest, with no account.
The link works for one booking only. Clara gets a confirmation email with a Google Meet link.
You connect the calendars once in Settings. You check the calendars that count as busy.
Google CalendarYou sign in with Google. You can connect more than one Google account.
OutlookYou connect personal and work Microsoft accounts.
iCloudYou connect with your Apple Account email and an app-specific password.
Company Teams Read from screenYou open your Teams week. You press Read from screen and pick the window. You check the times before OpenCal saves them.
.ics feedsYou add any calendar that has a private .ics address. OpenCal reads it when your page or link opens, at most every 10 minutes.
Browser extensionThe Chrome and Edge extension reads Outlook on the web while you are signed in.
OpenCalBusy times only
Other scheduling links cannot see Teams calendars that block outside apps.
You install OpenCal from Chrome or Edge. OpenCal opens in its own window.
Short answers about what your link shows and what it keeps private.
Yes. OpenCal is free to use.
They see your open times up to 90 days ahead. They can switch between Week, 2 weeks and Month views. They also see your name and any profile details you choose to show. They never see event titles, places or guests.
You can connect several Google and Microsoft accounts and an iCloud account. You can read a Teams or Outlook calendar from your desktop screen. You can read Outlook on the web with the browser extension. You can add any other calendar with its .ics feed link.
They sign in with Google or Microsoft on your link. The server compares both calendars and sends each of you only the shared free times.
Guest bookings are the only bookings that receive this email. A visitor who books your link as a guest gets one confirmation email from OpenCal with a link to add the meeting to their calendar. OpenCal sends no other email. If you turn on adding bookings to Google or Outlook in Settings, under Booking, that calendar also sends the invite.
Sign in with Google or Microsoft. It is free to use.