Calendar
A private calendar in one HTML file on your machine: no account, no cloud, no server to talk to.
This is not a screenshot. It's the real tool, running right here: go on, put something in it.
Forged into a knife, this tool ages with use: the blades you reach for wear soft, entries you tend keep their bloom, and the years travel with the file through every reforge.
The dentist, the parent-teacher evening, the thing on the 14th you agreed to in a weak moment — they all need to live somewhere you'll look. The Calendar keeps your events plainly: what, which date, what time, and notes, without demanding your email address first.
What it keeps
- Eventshort text
- Datedate
- Timeshort text
- Notesnotes
Standing facts
- One HTML file. Opens in any modern browser, on any operating system.
- No account. No login, no sign-up, no e-mail wall.
- No cloud. Nothing leaves your browser: no server, no telemetry, no analytics.
- Yours forever. The file keeps working whether or not Offline.Ltd does.
- Ages with use. Entries you tend keep their bloom; the years travel with the file through every reforge.
In ten years
Whatever you put in (Event, Date, Time and Notes) stays inside the file itself. There is no account to lapse, no plan to be sunset, no migration e-mail with a deadline in it. A decade of calendar entries is a decade of your own handwriting, kept in a document you can back up like any other.
If Offline.Ltd closes tomorrow, nothing on your machine notices. That isn't a marketing promise; it's simply what a file is.
Getting your data out
Export to CSV from inside the tool and open it in anything: a spreadsheet, another app, a text editor. Or keep the HTML file: it is plain, readable, and inspectable; you can open it in a text editor and see your own rows sitting there. No export queue, no "we'll e-mail you a link within 48 hours", no format that only one vendor can read.
Copy the file to a USB stick, a NAS, a folder your devices already sync. It runs on Windows, macOS, Linux, Android and iOS, online or off, because a browser is the only thing it ever needed.
Who else sees this
Nobody. Your Event, Date, Time and Notes never leave the file on your own disk. There is no account, no telemetry, no analytics, and no code in the file that opens a network connection, pull the cable and watch it carry on working. How privacy works across the Productivity tools →
Questions people ask
Is there a calendar that doesn't sync to a big tech account?
Yes — this one syncs to nothing, by design. It's one HTML file running offline in your browser: your appointments never leave the page, no account exists to be breached, and the file is yours forever.
How do I add events to this calendar?
Each event is an entry: the name, the date, the time, and a notes box for the address or the thing you must not forget to bring. That's the whole ceremony.
Will it send me reminders or notifications?
No — it holds the list and waits for you to look, like a wall calendar. If you're the sort who checks the kitchen calendar each morning, this is that, in your browser.
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Fits your knife at weight 1. Nothing here is final, Knife follows Life. Reforging within your tier is free, forever. Add it, drop it, reforge it later; the file stays yours either way.