Taha Baba
Subject Line Length Checker
Optimize your email subject lines and preheader text by checking their lengths for compatibility with popular email clients.
Get instant feedback on your subject line's and preheader's lengths and learn how to improve their effectiveness.
How to Use Subject Line Length Checker
1. Enter Your Subject Line
Type or paste your email subject line into the input field provided.
2. Add Preheader Text (Optional)
Include your preheader text to evaluate its length alongside the subject line.
3. Observe Instant Results
As you type, the tool will instantly evaluate both the subject line and preheader text and provide feedback.
4. Optimize Based on Feedback
Follow the suggestions provided to shorten or adjust your subject line and preheader text for better performance.