Repl1 – AI Email Reply Assistant

Privacy-first AI email replies for Gmail. Generate smart reply suggestions with one click.

Repl1 is a privacy-first AI assistant that helps you write email replies directly in Gmail—with one click. WHAT IT DOES Open any email thread in Gmail, click the Repl1 button, and get a suggested reply that matches the conversation and your tone. You stay in control: the AI suggests, you decide. Copy the text, edit it, or insert it into your compose window. Nothing is sent automatically. PRIVACY FIRST Repl1 does not scan your inbox in the background. It only sees the email you’re replying to, and only when you click. No permanent storage of your messages. Your data is used solely to generate that single reply. HOW IT WORKS 1. Install the extension and sign up at repl1.app 2. Open Gmail and open any email 3. Click the Repl1 button and choose "Generate Reply" 4. Review the suggestion, then copy or insert into your reply FREE & PRO • Free: 20 AI-generated replies per month, basic reply suggestions • Pro: 200 replies per month, custom instructions (e.g. "only available Tuesday", "mention max budget"), and reply refinement (e.g. "make it shorter", "sound more formal") WHO IT’S FOR Anyone who wants to save time on email without changing how they work. No new app—everything happens inside Gmail. Replies stay in your voice; the AI just helps you get there faster. Install Repl1 to try it free. No credit card required.