Lightfern - AI Email

The AI-powered email experience with blazing fast autocomplete that writes in your style.

Finally, AI that understands you and can write just like you. Lightfern's browser extension integrates directly with your Gmail account to provide drafting assistance and AI feedback, summarization, and general assistance. • The world's best autocomplete model. Blazing fast autocomplete that understands your tone of voice and your relationship with recipients. Under the hood, uses your previous emails to come up with high quality suggestions. • Chat with more powerful models with a single hotkey. Get feedback on your tone, translate, and rewrite without having to copy-and-paste into ChatGPT. • Zero configuration necessary - just install the extension, login and go. • Privacy and security at its core. Zero data retention by default. === Privacy and security === Unless you opt-in to sharing your data with us for training, your email data is only used for transient processing to provide AI suggestions; we do not retain any copies on disk and do not train on your data. Access tokens (such as your Google login), also stay only on your machine and Lightfern's servers cannot fetch them.