Convert Markdown into fully inlined, Outlook-safe HTML - ready to paste into ConvertKit, beehiiv, Mailchimp, or any ESP. 100% client-side: your content never leaves your browser. No signup, no account, no paywall. Includes email-safe callout boxes and CTA button syntax so you can skip hand-coding HTML. Built for newsletter writers, marketers, and indie devs who draft in Markdown.