Killendar
The facts below are what the maker publishes about Killendar, checked and dated. Our editors have not written about it yet.
Plans and prices
From Killendar's own pricing page, checked 22 Sep 2026.
| Plan | Price | What it gives you |
|---|---|---|
| Free | Free | Windows calendar · Optional password encryption · No account or subscription · GPLv3 open-source software |
| Killendar | Free | Windows 10/11 x64 · GPLv3 · no account or subscription |
The facts
Each one read from Killendar's own pages, with the date it was checked.
What it does
- AI integration
- KillerMCP can read the active calendar and create single appointments through the running Killendar app.checked 12 Oct 2026
- Calendar files
- Each calendar is a .kcal SQLite file that users can read and back up with ordinary SQLite tools.checked 12 Oct 2026
- Calendar sync
- nonechecked 22 Sep 2026
- Calendar views
- It provides month, week, day, and agenda views, with overlapping appointments displayed side by side.checked 12 Oct 2026
- Categories
- Users can define color categories, and an appointment can have several categories.checked 12 Oct 2026
- Encryption
- Optional SQLCipher encryption protects the calendar file at rest with AES-256 and per-page HMAC-SHA512; without a password, the file remains plain SQLite.checked 12 Oct 2026
- Import and export
- Killendar imports and exports iCalendar files using RFC 5545.checked 12 Oct 2026
- Installation
- The app can run portably or install per-user or for all users, and provides silent installation for winget, Chocolatey, and RMM deployment.checked 12 Oct 2026
- Integration limits
- KillerMCP agenda requests cover at most 31 days and return at most 100 events; creating appointments requires Killendar to be open and unlocked.checked 12 Oct 2026
- Password recovery
- There is no password recovery for an encrypted calendar; if its password is lost, the app keeps the locked file on disk and opens a new empty calendar.checked 12 Oct 2026
- Purpose
- Killendar is a calendar app for Windows that works without an account, sync service, or telemetry.checked 12 Oct 2026
- Scheduling links
- Nochecked 22 Sep 2026
- Shared calendars
- Nochecked 22 Sep 2026
- Support and feedback
- The maker directs users to GitHub issues for bug reports and suggestions.checked 12 Oct 2026
Money
- Free plan
- Yeschecked 22 Sep 2026
Where it runs
- Mobile apps
- nonechecked 22 Sep 2026
- Platform requirement
- The stated platform is Windows 10 or 11, x64, with .NET Framework 4.8.checked 12 Oct 2026
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