Letro AI

Letro AI is an AI email builder that turns a prompt into an on-brand, production-ready email. It learns your brand — colors, fonts, tone — and generates emails in clean MJML, so they render correctly across Outlook, Gmail, and every other client instead of breaking. You can then edit visually, refine with AI, or drop into the code, and export the MJML into any ESP (Klaviyo, Mailchimp, Shopify, etc.).
Key features: brand-aware generation, clone-any-email-from-a-screenshot, and a self-reviewing engine that checks its own output before you see it.