AI Email Subject Line Scorer

Why Email Subject Lines Matter

Your email subject line is the first thing recipients see. It determines whether your email gets opened or ignored. Studies show that 47% of email recipients open an email based solely on the subject line, while 69% report emails as spam based on the subject line alone.

What Makes a Great Subject Line?

• Length: Aim for 40-50 characters. Shorter lines work better on mobile devices.
• Personalization: Including the recipient's name can increase open rates by 26%.
• Urgency: Creating a sense of urgency (without being spammy) can drive action.
• Clarity: Be clear about what's inside. Vague subject lines hurt trust.
• Avoid Spam Triggers: Words like "FREE!!!", "ACT NOW", or excessive caps can land you in spam.
• Use Numbers: Subject lines with numbers tend to have higher open rates.
• Ask Questions: Questions engage curiosity and encourage opens.

Common Subject Line Mistakes

• Using ALL CAPS (looks like spam)
• Too many exclamation marks!!!
• Being vague or misleading
• Making it too long for mobile displays
• Using spammy words like "Free Money" or "Click Here"
• Not testing different variations

How Our AI Scorer Works

Our AI analyzes your subject line across multiple dimensions including length, sentiment, urgency, personalization potential, spam risk, and overall effectiveness. It provides a comprehensive score along with specific, actionable recommendations to improve your open rates.

Legal Disclaimers & Privacy

Not Professional Marketing Advice: This tool provides general suggestions for educational purposes only. Results may vary based on your audience, industry, and email platform. Always test subject lines with your specific audience.

No Guarantees: We cannot guarantee improved open rates or email performance. Email deliverability depends on many factors including sender reputation, content, and recipient preferences.

Privacy Policy: This website uses Google AdSense to display advertisements. Google may use cookies to serve ads based on your visit to this site. You can opt out at Google's Ads Settings. Your subject lines are analyzed locally in your browser and are not stored or transmitted to our servers. Read our full Privacy Policy.

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