What is Letty?
Letty is your personal AI email assistant, helping you craft high-quality emails in your unique style directly within Gmail.
Designed to enhance email-writing efficiency and professionalism, allowing you to use it directly within Gmail without switching interfaces.
Catering to busy professionals, customer service teams, non-native English speakers, managers, freelancers, and more.
Key features
AI-Powered Email Composition: Automatically generates accurate email bodies or replies that align with the current context of the email thread, tailored to the appropriate tone and style.
Smart Reply Suggestions: Provides real-time options for concise or detailed AI-generated replies, adapting to various communication needs.
Tone Customization: Allows flexible adjustment of tone—formal, friendly, or other preferences—to ensure each message feels just right.
Use cases and audience
Suitable for busy professionals, customer service teams, non-native English speakers, executives and entrepreneurs, as well as freelancers.
- Quickly compose business emails in Gmail, generating accurate content tailored to personal or corporate needs based on the conversation context.
- Instantly generate responses to customer inquiries for customer service teams, boosting response speed and satisfaction.
- Help non-native English speakers write grammatically correct emails or translate email content.
The email exchange context within Gmail—including recipients, subject lines, and existing conversation content.
Complete email bodies or reply suggestions that match the user’s specified tone (e.g., formal, friendly, etc.).
Frequently asked questions
Which email platforms does Letty currently support?
Letty currently supports only Gmail, while support for Outlook and Zoho is under development.
Will Letty store my email content?
No. Letty does not store your email content; it only analyzes the conversation context in real time to generate responses, without retaining any personal data.
How to use
- 01
Install the Letty extension from the Chrome Web Store.
- 02
Link Letty to your Gmail account.
- 03
When composing a new email or replying in Gmail, simply use the AI suggestions provided by Letty.
Official website & sources
Updated on 2026-10-27
