Privacy

Your data stays in your browser

Files you open are read by the browser itself and parsed by JavaScript running in the tab. Nothing is uploaded. There is no upload endpoint to upload it to: the whole site is static files, and the analysis code runs on your machine.

You can verify this rather than taking our word for it. Open your browser’s developer tools, switch to the Network tab, and load a file. You will see requests for the page and its scripts and fonts, and nothing after that. If you would rather be certain, load the site, disconnect from the network, and keep working — everything continues to function, because there is nothing for it to call.

What is stored on your device

Two things, both in this browser’s local storage and neither sent anywhere: your light-or-dark theme preference, and a licence key if you have pasted one in. Clearing your browser’s site data removes both.

No cookies are set, so there is no cookie banner to dismiss.

No analytics

There is no analytics script, no tag manager, no session recorder and no advertising pixel on any page. We do not know which tools you use or how often, which is a real cost to us and the point.

The site is served by a hosting provider that keeps ordinary web server logs — an IP address, a URL, a timestamp — as every web server does. Those logs are the hosting provider’s and are not linked to anything you do inside the page.

Licences

A licence key is a signed string. It is verified in your browser against a public key built into the site, with no network call, which is why the tools keep working offline. The key carries no name and no email address — only a one-way hash of the address it was issued to, so that support can confirm a key is yours without the key itself carrying anybody’s personal data.

Getting in touch

Write to help@plotlad.com. An email is an email: we will have your address and whatever you put in the message, and we will keep it only as long as it takes to answer you.