Privacy policy

The short version: no accounts, no trackers, no ads — and nothing your child types in the editor ever leaves their device.

Last updated: October 25, 2026

What this site stores

Two small preferences, saved in your browser's local storage on your own device:

• your preferred site language
• your lesson progress and which lessons are unlocked

Local storage never travels to us — there is no server to send it to. Clearing your browser data removes it.

What we never receive

• Your code. Everything written in the editor runs in a sandbox inside the browser and is never uploaded.
• Accounts or profiles. There is no sign-up, no password, no email capture.
• Payment details. Card numbers go directly to the checkout provider and never pass through this site.

Third parties involved

• Google Fonts serves the site's typefaces — your browser requests font files from Google, the same as on any site using Google Fonts. See Google's privacy policy.
• The checkout provider handles all payment information when you buy, under its own privacy policy.
• No analytics, advertising or session-replay scripts are included. Nothing watches you while you read this page.

For parents of younger children

The course is made for families, and we do not knowingly collect personal information from children. If you believe a child has sent personal information by email, contact us and it will be deleted.

Changes to this policy

Any change will be published on this page with an updated date at the top.