// Email Marketing
Character Counter for Email Subjects
Track your email subject line characters. Keep it under 41 characters for mobile optimization to avoid truncation in the inbox.
Your subject line is the most important part of your email marketing campaign. If it is too long, mobile devices will cut it off mid-sentence. This character counter helps you restrict your copy ensuring total visibility next to the vital preview text.
Mobile Subject Line Limit
💡 The vast majority of emails are opened on mobile devices which truncate subject lines at around 41 characters. Put your offer up front.
Email Copy Limits
Mobile First Email Marketing
With mobile opens dominating email marketing, treating 41 characters as your hard limit ensures your core message is read by everyone. Utilize the additional 90-character preview text to support the subject line hook, rather than repeating it.
Frequently Asked Questions
What is the ideal character limit for an email subject line?â–¾
For desktop users, subject lines should stay under 60 characters. For mobile apps (like Gmail or Apple Mail), truncation occurs much earlier around the 41-character mark.
What is preview text?â–¾
Preview text (or preheader text) is the snippet of copy pulled from the body of the email that appears next to the subject line in an inbox. It usually ranges from 40 to 90 characters.
Does a shorter subject line increase open rates?â–¾
Yes, studies from Mailchimp and HubSpot show that subject lines ranging from 9 to 60 characters consistently provide the highest open rates. Avoid writing entire sentences here.