MarketingNew
/tools/email-subject-tester
Email Subject Line Tester
Score your subject line before you hit send
Analyze length, power words, personalization and emoji usage to get a 0–100 score plus concrete tips to improve open rates.
Subject line score
A quick heuristic check for length, power words and spam triggers.
Checks
power word ✗number ✗emoji ✗no all-caps ✓
Score0/ 100 · Grade D
Suggestions
Start typing to get suggestions.