Stop guessing. Get 10 subject lines that actually open.
10 techniques, 10 variants, rationale for each. Free 5/month.
5 free generations remaining this month
Your Email
Your Subject Lines
10 subject line variants will appear here
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Describe your email
Goal, audience, and the main message or hook you want to land.
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Get 10 variants
10 different psychological techniques — curiosity, urgency, social proof, and more.
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Pick the winner
Each variant includes the rationale — understand why it works before you A/B test.