Privacy

Puzzle generation, validation, the on-screen preview and PDF creation all run as JavaScript in your browser. Book titles, custom word lists, generated puzzles, solutions and finished PDFs are never transmitted to us, because there is no server component that could receive them. After the page has loaded, the app works offline.

Your browser's local storage keeps your current book configuration, saved word lists, saved presets and your light or dark theme preference. That data stays in your browser, is readable only by this site, and is removed if you clear site data. Generated puzzles and PDFs are not stored, because the seed rebuilds them.

Files you save, such as project files, word list exports and PDFs, are written to your device by your browser's normal download mechanism.

This version ships with no analytics, no tracking scripts and no advertising, and it sets no cookies. If analytics were ever added, this page would say so before it shipped.

The site is a set of static files. Whoever hosts them may keep ordinary web server logs, such as IP addresses and requested URLs, in the normal course of serving a website. Those logs are the host's, and they contain no puzzle content, because puzzle content never leaves your browser.

Open your browser's developer tools, switch to the Network tab, and generate and export a book. You will see the initial page and asset loads, and no requests carrying your settings or puzzles. You can also disconnect from the network after the page loads and build a whole book.