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Free Email Preview Text Generator

Craft the perfect preheader text to complement your subject line and boost open rates.

0 / 200 characters Optimal: 40-130 chars

Score

0 -

Length

Enter preview text

Inbox Previews

Gmail (Desktop)

Your Brand
Your subject line - Your preview text appears here...
9:41 AM

Gmail (Mobile)

B

Your Brand

9:41 AM

Your subject line

Your preview text appears here...

Apple Mail (Desktop)

Your Brand

Your subject line

Your preview text appears here...

Outlook (Desktop)

YB

Your Brand

Your subject line

Your preview text appears here...

9:41 AM

Issues Detected

Enter preview text to check for issues

Suggestions

  • Enter preview text to get suggestions

Preview Text Best Practices

What is Preview Text?

  • Text shown after the subject line in inbox
  • Also called "preheader" text
  • Pulled from first content if not set
  • Can be hidden using HTML/CSS tricks

Optimal Length

  • 40-130 characters is ideal
  • Gmail mobile shows ~40 chars
  • Desktop clients show ~100 chars
  • Outlook shows ~50 chars

Complement Your Subject

  • Don't repeat the subject line
  • Add extra context or details
  • Include a soft call-to-action
  • Create curiosity to open

Implementation

  • Add hidden div at top of email body
  • Use display:none CSS
  • Pad with zero-width characters
  • Most ESP's have a preheader field

Character Limits by Email Client

Email Client Preview Text Visible Notes
Gmail (Desktop) ~100-140 characters Depends on subject line length
Gmail (Mobile) ~35-40 characters Most limited view
Apple Mail (Desktop) ~80-90 characters Shows on separate line
Apple Mail (Mobile) ~75-100 characters Varies by device
Outlook (Desktop) ~35-50 characters Reading pane affects this
Outlook (Mobile) ~40-50 characters Similar to desktop app
Yahoo Mail ~100-110 characters Good visibility

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