One Swiss Knife in the exact shape of your life.

A family calendar Google doesn't get to read.

Your children's schedule is a small map of their life. It shouldn't be a marketing signal.

Most family calendars — the good ones, the shared ones — are Google Calendar with lipstick. That means the school pick-up window, the therapist appointment, and the recurring visit to the specialist are all sitting inside the world's largest ad company. An offline calendar is the same idea, without that.

What travels off your machine

Nothing. There is no sync server. If you want the calendar on two devices, put the file in a folder that syncs (iCloud, Syncthing, a home NAS) — the file itself never talks to us or to anybody.

For neurodivergent households especially

Predictability is medicine. A family calendar that doesn't randomly re-flow because a Google policy changed is worth something.

Compared to the alternatives

See no-cloud calendar for the honest comparison against Google, Apple, and the family-calendar-app category.

What to reach for

Calendar
Month, week, and day views in one HTML file. Nothing else needed.
Birthday Reminders
The recurring dates that matter — birthdays, anniversaries, tax days — kept locally.
Planner's Compass
When one calendar isn't enough: tasks, time-blocks, goals, habits, weekly review.
Keep-in-Touch
The people you mean to call more often. Cadence, not contacts.
See the Calendar tool Or enter the Forge

Common questions

Can I share it with my partner?

Yes — put the file in a shared folder, or send them a copy. It's a file.

Does it sync to my phone?

It opens in mobile Safari / Chrome and works offline there. There is no live sync — deliberately.

Can I import from Google Calendar?

Google exports .ics; the Calendar tool imports .ics. Move the events you actually use.

What if the file is lost?

Same as any other file — restore from backup. Which is why we recommend the same backup habit you'd give a wedding photo.