Best European Alternatives to Google Calendar (2026)
Google Calendar knows your appointments, who you meet and where you go. That is a detailed map of your life, stored with a US company under US law, and a particularly sensitive thing to hand to an advertising company. European calendar apps give you the same scheduling features with your schedule kept private.
Replace Google Calendar with a private productivity suite based in Europe. Compare Collabora Online, CryptPad, Infomaniak kSuite and more, all operated under European privacy law.
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Collabora Online (United Kingdom)
Browser-based office suite that opens and edits your documents, spreadsheets, and presentations without sending files to US servers.
✓ Open source -
CryptPad (France)
Write documents and collaborate in real time. Everything is encrypted, so only you and your collaborators can ever read it.
✓ Open source ✓ Audited 2022 ✓ Free tier -
Infomaniak kSuite (Switzerland)
Swiss email, calendar and file storage that respects your privacy. A clean alternative to Gmail and Google Drive.
✓ Free tier -
Mailfence (Belgium)
Belgian private email service that never scans your messages and protects your inbox under strict European privacy law.
✓ Free tier -
ONLYOFFICE (Latvia)
Office suite that opens Word, Excel and PowerPoint files perfectly. Use it in your browser or install it on your own server.
✓ Open source ✓ Free tier -
Proton Suite (Switzerland)
All-in-one privacy package from Switzerland: encrypted email, calendar, cloud storage, VPN and passwords under one account.
✓ Open source ✓ Audited ✓ Free tier -
Tuta (Germany)
German encrypted email and calendar. Your messages are locked end-to-end, so only you and the recipient can read them.
✓ Open source ✓ Audited 2022 ✓ Free tier
Host it yourself
Open-source software you run on your own server, NAS or an always-on computer at home. Your data never leaves your hands and nobody can close your account, but you look after updates and backups yourself. Because you hold the data, these can be developed anywhere.
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