Email Preview Text Length Checker
Check email preview text length.
Keep or share the finished result
Copy or share after running the tool. Saved tools and settings stay in this browser.
What would you like to do next?
Check preview text length
Preview text appears near the subject line in many inboxes and can influence whether a subscriber opens. Paste preview text to check characters, words and a simple mobile preview hint. It is useful for newsletters, product emails, launch sequences and email QA.
Support the subject line
Use preview text to add context rather than repeating the same words from the subject.
Frequently asked questions
What is preview text?
It is the short snippet many inboxes show beside or below the subject line.
How long should preview text be?
Keep the important words early because inboxes show different lengths.
Does this generate copy?
No. It checks the length of the text you enter.