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Email Subject Line Tester
Analyze your email subject lines for spam triggers, power words, and mobile preview. Get a score and suggestions to improve open rates.
Subject Line
0 characters0 words
Inbox Preview
Desktop (60 chars)
Your subject line will appear here...
Mobile (30-35 chars)
Your subject line...
Score
40
Needs Work
out of 100
Analysis
Character Count0 (30-50 optimal)
Power Words0 found
Spam Words0 ✓ None
Emoji Usage0
Contains NumbersNo
Recommendations
Subject line is too short
Aim for 30-50 characters for optimal engagement
Consider adding power words like 'you', 'new', or 'discover'
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