The calendar that actually helps you get everything in order
NiceCalendar is a convenient, extensible calendar for events, finances and weather. It brings order to all your plans — and never loses your data, even offline. Your data stays with you.
September 2026
Everything you need to plan
A handy organizer · Your data stays yours
Event types
Orders, sales, supplies, birthdays, workdays and finances — with colors and amounts. Adapt the types to your needs.
Themes and day colors
Classic, Solarized and Paper themes, plus your own colors for important days.
Weather in the calendar
Weather forecast for your city right inside the calendar days.
PWA on any device
Installs as an app on phone, tablet and desktop. Runs on iOS, Android, Windows, macOS and Linux.
Privacy by default
Your data lives on your device and in your account. No third-party analytics or tracking.
Offline sync
Events are stored locally and synced across your devices when a connection appears. The calendar works fully offline.
How it works
Create an account
Sign up in a minute. Your data is tied to you, not to a third-party cloud.
Plan offline
Add events, finances and birthdays even without the internet — everything is saved locally.
Sync your devices
Open the app on another device and your events appear automatically once you are online.
Your data stays yours
A private offline-first calendar with events, finances and weather.
Local storage
The calendar runs as a PWA and stores data locally on your device.
Sync only with your server
Exchange happens between your devices through your NiceCalendar account.
No tracking
We add no trackers and sell no data. No advertising.
Frequently asked questions
Does NiceCalendar work without the internet?
Yes. The calendar stores events locally and keeps working offline. Sync with your other devices happens automatically as soon as you are back online.
Where are my data stored?
Your data is stored on your device and in your NiceCalendar account. We do not share it with third parties and do not use it for advertising.
On which devices can I use the calendar?
NiceCalendar is a PWA: it installs as an app on iOS, Android, Windows, macOS and Linux and opens in any browser.
Is it free?
Yes, the core calendar features are free.
Can I move data from another calendar?
Yes. Export and import to JSON and ICS are supported, as well as subscribing your phone calendar — Apple Calendar, Google Calendar and Outlook.
Bring order to your plans today
A convenient, extensible calendar that helps you get everything in order — and never loses your data, even offline.
Open NiceCalendar