Anonymous vs signed-in projects
Fantasma can start without an account, but browser-only and signed-in projects behave differently. The difference matters before you clear browser data, switch devices, upload images, connect Ghost, or publish.
Browser-only projects
Anonymous projects are stored locally on your device. They work well for trying the builder quickly, but they stay tied to that browser profile. Clearing site data, using another device, or losing local storage can remove the project.
Before wiping browser data, either move the project into your account or download the theme ZIP if it is ready to install in Ghost.
How to sign in
Open the sign-in dialog from the site header or from the builder. Enter your email and Fantasma sends you a one-time link; opening that link signs you in. There is no password to set or remember.
Continue with Google signs you in with a Google account instead. It both signs you in and creates the account on first use, so there is no separate sign-up step either way.
Projects in your account
Signed-in projects are saved to your Fantasma account within your account limits. They autosave, appear in your projects dashboard, and can be opened from other devices.
When you sign in with a browser-only project, Fantasma may show an Unsaved local project notice. Choose Save to cloud in that notice to create a project in your account, or Remove local project to discard the browser-only copy. Saving it to your account is different from shipping the theme. Download ZIP or Publish sends theme files to Ghost.
Signing in also gives Fantasma a secure account context for server-backed features. Pro features require a signed-in account because Fantasma needs to store or run work on behalf of a project.
Examples include project image uploads, connected Ghost preview, and direct publish. If a Pro control is unavailable, check that you are signed in, editing a project from your account, and on the required plan.