PrivacyTools.io
Reviewed by Marco Wollank

Best Google Calendar Alternatives in 2026

5 private alternatives, vetted against our public criteria.

Your calendar is a map of where you are and who you meet, hour by hour, and Google Calendar keeps that map readable on its servers. There is no setting that hides the contents while keeping the convenience, because the readable copy is what powers the reminders and the smart suggestions. The calendars below encrypt your schedule and run on open standards, so your week stays private without becoming a chore to manage.

Why settings won’t fix Google Calendar. Cross-device sync and smart suggestions exist because Google can read your events, so they are a property of the design rather than a preference you can switch off. The entries sit in plain form on Google’s servers, which is precisely what lets the assistant surface the right reminder and stitch your schedule across the account. Hiding an event from other people is possible; hiding it from Google is not, because the company needs the readable copy for the features it sells. No privacy toggle changes that, since it would have to disable the very thing the product is built around. An encrypted calendar fixes it at the root by scrambling the event details on your device before they ever sync, so even the provider holds entries it cannot open.

What actually matters in a calendar. Start with real end-to-end encryption of the event details, not just an HTTPS connection, so the provider stores entries it genuinely cannot read. Then check for support for the open CalDAV standard, since that is what lets the calendar appear inside the apps already on your phone and laptop instead of trapping you on one web page. A clean ICS export matters too, so your events are never locked in and can move again later. Reliable reminders that fire across every device round it out, since a private calendar is no use if it lets an appointment slip. Proton Calendar and Tuta pair end-to-end encryption with a polished hosted experience, EteSync brings encryption to standard CalDAV apps, and a self-hostable option like Radicale keeps the data on your own server entirely. The shared point is that the only readable copy of your schedule stays with you.

How to switch. Export your current calendar as an ICS file and import it into the new one, then connect the account over CalDAV on every device so everything stays in sync. Run the old and new calendars side by side for a couple of weeks to catch any recurring events that did not transfer cleanly before you switch Google off for good. Because your invitations travel through email, moving the calendar pairs naturally with leaving Gmail, and our Gmail alternatives page covers that side of the move. If you are de-Googling more broadly, the de-Google playbook walks through the rest of the ecosystem.

Frequently asked

Can I import my existing Google Calendar events?
Yes. Export your Google Calendar as an ICS file and import it into the new calendar. Recurring events and reminders carry over, though it is worth double-checking anything with an unusual repeat rule, since those are the entries most likely to need a small fix after the move.
Will an encrypted calendar sync with my phone's built-in calendar app?
Most of these use CalDAV, the open calendar standard, so they sync with the native calendar on your phone and your desktop. You are not stuck inside one company's app, and you keep using the calendar interface you already know while the data lives somewhere private.
Can I still invite people who do not use the same calendar?
Yes. Invitations go out as standard calendar messages that any calendar can read and respond to, so the people you schedule with never need to switch anything. They receive and accept the invite exactly as they would from any other service, with no extra step on their end.
What part of my calendar does the encryption actually hide?
On a properly end-to-end encrypted calendar the event details themselves are hidden from the provider, meaning the title and the time along with the location and the notes. That goes well beyond an HTTPS connection, which only protects data in transit and leaves the events readable once they reach the server. The point is that the company holds entries it cannot open.
Is a self-hosted calendar more private than a hosted encrypted one?
It can be, because a calendar you run on your own server means the events never touch anyone else's infrastructure at all. The cost is that you take on the setup and the upkeep yourself. A hosted encrypted calendar is far easier to live with and still keeps the provider from reading your events, so the right choice depends on how much you want to manage.