ForthWrite is an AI email drafting tool that writes in your voice by learning your patterns from your full correspondence history: past sent emails, threads you've replied to, context you've provided, and edits you've made to previous drafts.
Most AI email tools work by prompting: you describe your style and the model produces output that matches that description generically. ForthWrite uses your real threads instead. It reads your Gmail or Outlook email history, converts your past emails into a searchable model of how you actually write, and retrieves the most relevant examples when generating each draft (similar recipient type, relationship context, topic, etc.). The result carries your specific patterns: how you open with familiar contacts versus new ones, your typical length and structure per situation, the vocabulary you actually use. These are patterns you cannot describe in a prompt because you don't consciously know them.
ForthWrite also reads the current email thread before drafting, so conversation context is incorporated automatically. For high-volume users, batch drafting processes multiple emails at once. It runs as a Chrome extension directly inside Gmail and Outlook, so there's no tab-switching, and no copy-paste. Drafts appear in your compose window, and the voice calibration improves as more of your correspondence is indexed.