WerkTools

📧 Email Subject Preview

See exactly how your email subject line will appear in Gmail and on mobile devices. Check your character count and make sure nothing important gets cut off.

0 characters

Recommended: 50 characters or fewer for best display across all clients.

Gmail Desktop

Y
Your Name
Your subject line — Hey, just wanted to follow up on our conversation from earlier this week...
3:42 PM

Mobile

Y
Your Name3:42 PM

Your subject line

Hey, just wanted to follow up on our conversation...

How to use

  1. Type or paste your email subject line into the input field.
  2. Watch the character count — green means safe, yellow is borderline, red means it may get cut off.
  3. Preview how it looks in both Gmail desktop and mobile views below.

About Email Subject Preview

Email clients show different amounts of the subject line depending on the device and screen size. Desktop Gmail typically shows 60-70 characters, while mobile devices may show as few as 30-40. Keeping your subject under 50 characters ensures it displays fully across most clients.