Data
A receipt: where every piece of data touched by this site actually is. Most of it is on your device and nowhere else.
Last updated: 25 September 2026
In your browser, while a tool is open
Everything you enter. A tool computes in the page and cannot send a request: the server sends each one with a policy that blocks the network, and the smoke test that admits a tool checks that nothing tries. Close the tab and it is gone, unless the tool saved settings, below.
In your browser, between visits
Two things. Your light-or-dark choice for the site, if you set it. And, for tools that offer it, your last settings, kept in the browser's storage for that tool so you can pick up where you left off. Today that is Pepperoni roll planner and Logo puzzle maker. Clearing site data removes both.
A file you open in a tool
Read by the page, in the page. The puzzle maker traces a logo you choose; a planner reopens a settings file you saved. The file is not uploaded, because the page has no way to upload it.
A file a tool makes for you
Built in the page and handed to your browser as a download. An SVG for the laser, a recipe as Markdown, a settings file as JSON. I never see it.
The zip you download
The tool's own file, its manifest, README, license, screenshot and any sample inputs, exactly as published. It contains no telemetry or tracking code; the validator refuses a package that does.
On this site's server
Static files only: the pages, the tools, the zips. No database, no account, no record of who opened what. Cloudflare, which serves the files, keeps connection logs on its own terms.
What I receive
A tool you email me: the message, the zip and your address, kept while I review, reply and publish. Nothing else reaches me from this site today.
What may change
Aggregate analytics on the site's own pages, to learn which tools people use and where they get stuck; and optional accounts, to save configurations. Neither exists yet. When either does, the privacy page changes first, and neither will ever reach inside a tool or a download.