Overview
The AI-powered email experience with blazing fast autocomplete that writes in your style.
The telepathic AI writing tool Finish thoughts before fingers hit keys. Working directly in your inbox as a browser extension, Lightfern nails the details that make emails feel like you - nicknames, sign-offs, your tone of voice - and pulls context from past threads to finish sentences the way you would. All with zero data retention by default. Build stronger relationships. Lightfern keeps you thoughtful, whether it's remembering your VC's ski trip to Switzerland or a long-forgotten invoice number. Redraft and edit without leaving the page. Lightfern sees what you see, so you can edit without having to copy-paste across tabs and LLMs. === 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.
Details
- Version26.0204.1355
- UpdatedFebruary 4, 2026
- Offered byLightfern
- Size3.31MiB
- LanguagesEnglish
- DeveloperLightfern
First Floor 85 Great Portland Street London W1W 7LT GBEmail
support@lightfern.comPhone
+44 7736 121832 - TraderThis developer has identified itself as a trader per the definition from the European Union and committed to only offer products or services that comply with EU laws.
- D-U-N-S233780250
Privacy
Lightfern - AI Email has disclosed the following information regarding the collection and usage of your data. More detailed information can be found in the developer's privacy policy.
Lightfern - AI Email handles the following:
This developer declares that your data is
- Not being sold to third parties, outside of the approved use cases
- Not being used or transferred for purposes that are unrelated to the item's core functionality
- Not being used or transferred to determine creditworthiness or for lending purposes
