According to AlphaMoat, as of 2026-09, the Chrome extension AI Auto Reply has 49 users (+22.5% MoM) — ranked #5,490 of 9,324 AI browser extensions, and #1,133 of 1,839 in Office & Collaboration.
What is AI Auto Reply
AI-powered email auto-reply for Gmail and Outlook AI Auto Reply - Transform Your Email Drafts into Professional Messages
Stop spending time crafting the perfect email response. Simply jot down your key points, and let AI transform them into polished, professional business emails.
HOW IT WORKS 1. Open a reply in Gmail or Outlook Web 2. Type your main points as bullet points or brief notes 3. Click the glowing "AI Rewrite" button in the compose toolbar 4. Review the AI-generated reply in the side panel 5. Edit if needed, then click "Copy & Paste" to insert
KEY FEATURES
- Works with Gmail and Outlook Web (including Office 365)
- Side panel interface for easy review and editing
- One-click paste directly into your compose window
- Regenerate with additional instructions for fine-tuning
- Bilingual UI (English and Japanese)
- Customizable system prompts for your writing style
SUPPORTED AI PROVIDERS
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- OpenAI (GPT-4o, GPT-4, etc.)
- Anthropic Claude
- OpenRouter
- Groq
- Sakura Internet AI Engine
- Any OpenAI-compatible API endpoint
PRIVACY & SECURITY
- Your API key is stored locally in your browser
- Email content is sent directly to your chosen AI provider
- No data is collected or stored by this extension
- No account required - bring your own API key
PERFECT FOR
- Business professionals who write many emails
- Non-native speakers who want polished communication
- Anyone who wants to save time on email responses
REQUIREMENTS
- Chrome 114+ or Edge 107+
- API key from your preferred AI provider
Get started in minutes - install the extension, add your API key, and transform how you write emails.
--- Questions or feedback? Visit our GitHub page. Icon by Freepik from Flaticon
Extension profile
User Growth Trend
Popular in Office & Collaboration
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+ CompareData month: 2026-09 · User counts and ratings come from public Chrome Web Store data, aggregated monthly. See methodology.