Letterbot AI

AI email assistant — generate emails, replies, subject lines, summaries, and grammar fixes in 13 languages. Write better emails in seconds. Letterbot AI lives inside your Gmail compose window — just click the robot icon in the toolbar and let AI do the writing.

6 Powerful Tools:

📧 Write Email — Describe what you want to say, and AI writes the full email for you ↩️ Smart Reply — Paste an incoming email and describe your intent. AI drafts a contextual reply 💡 Subject Line Generator — Get 3 subject line suggestions for any email 📋 Email Summary — Condense long emails into concise bullet points ✏️ Grammar Correction — Fix spelling, grammar, and punctuation mistakes instantly 📈 Sales Email — Generate persuasive cold outreach and sales pitches

13 Languages: English, German, Spanish, French, Portuguese, Croatian, Japanese, Korean, Chinese (Simplified & Traditional), Arabic, Hindi, and Russian.

5 Writing Tones: Formal, Casual, Friendly, Polite, or Respectful — match the right tone for every situation.

Works Inside Gmail: No switching tabs. Letterbot adds a button directly to your Gmail compose toolbar. Click it, pick a tool, type your prompt, and generate. Hit "Insert" to paste the result straight into your email.