Business Letterhead Template

No artificial intelligence runs in the workflow. Rendering is deterministic: your JSON payload fills static HTML/CSS templates hosted in the codebase, guaranteeing predictable output for compliance-minded teams.

Modern excels at tech and creative boutiques. Classic signals heritage for law and accounting studios. Minimalist keeps executive memos restrained. Corporate projects confidence for regulated industries that want a commanding header strap.

Template style and brand triggers an immediate regenerate after your first successful build. Typed fields debounce every 500ms so you retain smooth typing performance while preserving near-live preview fidelity.

The API enforces sixty POST requests per IP per sliding minute. When you surpass that budget you receive HTTP 429 with RATE_LIMIT_EXCEEDED — pause briefly before retrying or switch networks responsibly.

Client-side localStorage persists your field values and template choices with the clear-form action wiping keys. HTML output itself is ephemeral and never persisted server-side, matching the privacy pledge in the specification.

Downloads use the pattern: the prefix business-letterhead-, then a slug derived from your company name, then.html. Special characters are removed and spaces become hyphens, per the tool's filename rules.