According to AlphaMoat, as of 2026-09, the Chrome extension Supermail has 64 users (+20.8% MoM), rated 4.6 (7 reviews) — ranked #4,980 of 9,324 AI browser extensions, and #1,030 of 1,839 in Office & Collaboration.
What is Supermail
Supermail: The smart tool that transforms email into a powerful, professional communication hub, polished, and effortless. Elevate every aspect of your email communication within Google Mail with Supermail — your expert AI assistant for writing with clarity, tone, and precision. With a single click of the “Supermail” button—conveniently placed beside the “Send” button—you can instantly refine any message or reply, ensuring your emails always meet the highest standards of professionalism.
✅ No sign-up required. ✅ Free with premium features. ✅ No API key required.
🌟 What’s New
- Right-Click Smart Suggestions: Highlight any text and use Supermail from the context menu to instantly improve tone, clarity, or phrasing.
- Expanded Language Support: Compose and enhance emails in 20+ languages with natural fluency.
- Revamped User Interface: Enjoy a modern, faster, and more intuitive experience designed for seamless workflow inside Gmail.
💼 Multiple Profiles for Every Email Scenario
- Professional Profile: Perfect for business communication—concise, confident, and authoritative.
- Custom Profiles: Create tailored writing profiles for different tones, use cases, or audiences.
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🚀 Key Features
- Advanced Grammar & Style Corrections: Automatically refine grammar, punctuation, and writing style.
- Tone & Sentiment Control: Adjust emotional tone to match your intent.
- Multilingual Writing: Communicate globally with real-time translation and adaptation.
- Customizable Templates: Access ready-made, adaptable templates for any situation.
- *Smart Replies: Generate context-aware responses that sound natural and personal.
- *Email Summarization: Quickly understand long threads with smart summaries.
- *Voice-to-Text Composition: Dictate emails hands-free for maximum efficiency.
- *Scheduling & Follow-Up Reminders: Stay on top of your communication effortlessly.
- *Inbox Prioritization: Let AI highlight your most important messages first.
* Under paid service
Extension profile
User Growth Trend
Popular in Office & Collaboration
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Data month: 2026-09 · User counts and ratings come from public Chrome Web Store data, aggregated monthly. See methodology.