Lightfern

Draft and complete email in your writing style using the context of existing conversations.

Meet Lightfern

Lightfern is a browser extension that assists with writing email in Gmail, Outlook Web, and Superhuman Web. It uses the current thread and relevant past conversations to suggest completions, draft replies, and adjust wording. Users can ask questions about a thread or refine a message inline while staying in their inbox.

Contact history provides context for follow-ups, including earlier discussions and relationship details. The product is intended for both brief replies and more involved messages where tone matters. Setup involves installing the extension and connecting an email account. Suggestions remain part of the writing workflow so users can accept, edit, or replace them before sending their response.

Discussion

Tried it? Share a useful thought or ask a question.

Product details

Website: lightfern.com
Status: Launched
Category: Communication
Listed: Oct 21, 2026

Explore related topics

AI Browser extension Email Email drafting Writing

Embed upvote button

Let visitors support Lightfern from your website.

Button appearanceLightDark

Lightfern

Upvote

Paste into your site’s HTML

<div data-betaneon-widget="light" style="box-sizing:border-box;display:flex;align-items:center;gap:12px;width:320px;max-width:100%;min-height:84px;padding:12px 14px;margin:0;border:1px solid #e1e0dc;border-radius:12px;background:#ffffff;color:#181818;font:400 14px/1.4 Arial,Helvetica,sans-serif;text-align:left;">
  <img src="https://m.betaneon.com/ic/332362ef-ea6e-4868-ad75-cb73b787a4a2.webp" alt="" width="36" height="36" referrerpolicy="no-referrer" style="box-sizing:border-box;display:block;flex:0 0 36px;width:36px;height:36px;margin:0;padding:0;border:0;border-radius:9px;object-fit:contain;background:#fff;">
  <div style="box-sizing:border-box;flex:1;min-width:0;margin:0;padding:0;">
    <span title="Lightfern" style="display:block;margin:0;padding:0;color:#181818;font:700 16px/1.4 Arial,Helvetica,sans-serif;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;">Lightfern</span>
    <div style="display:flex;align-items:baseline;gap:4px;margin:4px 0 0;padding:0;white-space:nowrap;">
      <span style="margin:0;padding:0;transform:translateY(-1.5px);color:#626664;font:400 14px/1.2 Arial,Helvetica,sans-serif;">on</span>
      <a href="https://betaneon.com/" target="_blank" rel="noopener noreferrer" aria-label="BetaNeon home (opens a new tab)" style="display:inline-flex;flex-shrink:0;margin:0;padding:0;border:0;background:transparent;text-decoration:none;outline-offset:3px;"><img src="https://betaneon.com/res/brand/wordmark.svg?v=453516e27973dc87" alt="BetaNeon" width="87" height="16" referrerpolicy="no-referrer" style="display:block;width:87px;height:auto;margin:0;padding:0;border:0;"></a>
    </div>
  </div>
  <a href="https://betaneon.com/vote/lightfern" target="_blank" rel="noopener noreferrer" aria-label="Upvote Lightfern on BetaNeon (opens a new tab)" style="box-sizing:border-box;display:flex;flex:0 0 68px;flex-direction:column;align-items:center;justify-content:center;gap:3px;min-height:56px;margin:0;padding:0 0 0 12px;border:0;border-left:1px solid #e1e0dc;background:transparent;color:#087f5b;font:400 14px/1.2 Arial,Helvetica,sans-serif;text-decoration:none;text-align:center;outline-offset:3px;">
    <span aria-hidden="true" style="box-sizing:border-box;display:block;width:9px;height:9px;margin:3px 0 0;padding:0;border:0;border-top:2px solid #087f5b;border-left:2px solid #087f5b;transform:rotate(45deg);"></span>
    <img src="https://betaneon.com/embed/upvote/lightfern/count.svg?theme=light" alt="Votes" width="56" height="20" referrerpolicy="no-referrer" style="display:block;width:56px;height:20px;margin:0;padding:0;border:0;">
    <span style="color:#087f5b;font:400 14px/1.2 Arial,Helvetica,sans-serif;">Upvote</span>
  </a>
</div>

Links open in a new tab. Visitors sign in on BetaNeon, then confirm their upvote. The vote count updates when the page loads.

Unclaimed

Building Lightfern?

Claim this profile to keep your product’s story up to date.

Sign in with your verified work email. Matching website domains are approved automatically; other requests are reviewed by our team.

Meet Lightfern

Discussion

Product details

Explore related topics

Similar products

Ready to Send

MailMaestro

Slashy

Faraday

Shortwave

TabMail