Fill the form, pick a theme, then either share a link (your page is encoded in the URL — no backend, no signup) or download a standalone HTML file to host anywhere. It's free because it's just JavaScript.
Your page's content is compressed into the share URL itself (base64 in the #hash). Anyone opening that link sees your page rendered straight from the URL — nothing is stored anywhere, so nothing can leak. Prefer a real URL you own? Hit Download HTML and drop the file on any free host (Cloudflare Pages / GitHub Pages / Netlify Drop), then put that link in your social bios.
Selling setups: this generator is also the product. Customize a page for a client's brand, send them the downloaded file or the share link, and charge for the setup ($15–40 on Fiverr/Gumroad). The tool costs nothing to run — that's the margin.