Stored in your browser
Each generator saves what you type in your browser's localStorage (keys starting with sf:) so your work survives a reload. The validator keeps your last input in sessionStorage until you close the tab. None of this leaves your device unless you use one of the features below.
Sent to our server
- URL fetch: when you click Fetch or give AI fill a URL, our server requests that public page and returns its HTML text. We don't store it.
- AI fill and AI review: the text or markup you submit is sent through Vercel AI Gateway to the model (openai/gpt-6-luna) to produce the answer. We don't store it. Don't paste confidential material.
- Your IP address is held briefly in memory to enforce fair-use rate limits and then discarded.
Analytics
We use Ahrefs Web Analytics, a cookieless analytics service, to count page views.