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Your subject line Roohlyn Newsletter · Preview text appears here...Browser utility
Email Subject Line Tester
Check a subject line before sending. Get practical warnings, simple suggestions, and mobile and desktop inbox previews.
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Add a subject line to get a practical score.
Desktop inbox preview
Your subject line Roohlyn Newsletter - Preview text appears here...Warnings
- Add a subject line to see checks.
Suggestions
- Use clear, specific wording that matches the email content.
Subject line help
Email Subject Line Tester FAQ
What does the score mean?
The score is a simple rule-based signal. It checks length, clarity, punctuation, all caps, and common spammy words. It does not predict open rates.
What makes a subject line clear?
A clear subject line tells the reader what the email is about and gives them a reason to open without misleading them.
Should I use emojis or punctuation?
Use them carefully. One punctuation mark can help, but repeated punctuation, all caps, or hype-heavy words can look spammy.