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AI Email Subject Line Generator

Generate catchy, high-converting email subject lines in seconds. AI-powered tool for newsletters, promotional emails, abandoned cart recovery, and more.

Generate Subject Lines
Generated Subject Lines

Enter your topic and click generate to create subject lines

Subject Line Best Practices

Keep it Short

30-50 characters is ideal. Mobile devices show fewer characters.

Create Urgency

Use time-sensitive language to encourage immediate action.

Personalize

Subject lines with names have 26% higher open rates.

A/B Test

Always test different subject lines to find what works best.

Features

AI-powered subject line generation

Multiple email types (Promotional, Newsletter, Welcome, etc.)

Tone selection (Professional, Casual, Urgent, Playful)

Score each subject line based on best practices

Character count optimization for mobile

Optional emoji inclusion

Number/percentage inclusion for urgency

One-click copy to clipboard

Generate unlimited subject lines

100% free with no signup required

Perfect For

Email Marketers

Generate A/B test variations quickly and find winning subject lines faster.

E-commerce Stores

Create compelling subject lines for sales, product launches, and cart recovery.

Newsletter Publishers

Keep your newsletter fresh with engaging subject lines that boost open rates.

SaaS Companies

Craft onboarding emails, feature announcements, and re-engagement campaigns.

Email Subject Line Statistics

47%

of recipients open email based on subject line alone

69%

mark email as spam based solely on the subject line

6-10

words is the ideal subject line length

22%

higher open rate with personalized subjects

Subject Line Formulas That Work

The Question Formula

Ask a question that resonates with your audience's pain points.

"Struggling to get more email opens?"

The Number Formula

Use specific numbers to create concrete expectations.

"7 email mistakes costing you sales"

The Urgency Formula

Create FOMO with time-sensitive language.

"Last chance: Sale ends at midnight"

The Curiosity Gap Formula

Tease information without giving everything away.

"The one thing top marketers never tell you"

Words to Avoid in Subject Lines

FREE
Act Now
Limited Time
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Buy Now
Urgent
Winner
Congratulations
Cash
Earn $
No Cost
Risk Free

These words can trigger spam filters. Use them sparingly or find alternatives.