Ferment Crock
A private ferment crock 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.
Fermentation is farming for people with one shelf, and every jar has its own opinion about schedule. The Ferment Crock tracks each batch — kimchi, kraut, kombucha, hot sauce, miso, or Experiment — with its start date, days in, and a bubbling report that runs from Quiet to Alarming. It remembers when everything went in so you can decide when it comes out.
What it keeps
- Batchshort text
- Kindchoice · Kimchi / Kraut / Kombucha / Hot sauce / Miso / Experiment
- Starteddate
- Days innumber
- Bubblingchoice · Quiet / Promising / Vigorous / Alarming
- 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 (Batch, Kind, Started and Days in) 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 ferment crock 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 Batch, Kind, Started and Days in 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 Hobby tools →
Questions people ask
How do I keep track of multiple ferments at once?
Each batch gets its own entry with the kind of ferment, when it started, how many days it has been going, and how vigorously it is bubbling. Six jars, six entries, no guessing which one is the old kraut.
Is my fermentation log private, and does it work without internet?
Yes and yes. It is a single HTML file running offline in your browser — no account, no cloud, nothing leaves the page. Your hot sauce experiments answer to no one.
What does the bubbling status mean in a ferment tracker?
It is a simple scale of what you observe: Quiet, Promising, Vigorous, or Alarming. It will not tell you what to do about Alarming, but it will tell you when it started.
Go deeper on Ferment Crock
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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.