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Social and YouTube

Email Subject Line Generator — 15 Variants

Generates 15 email subject lines spanning 8 psychological frameworks, each with a curiosity/urgency rating and preview text under 90 characters. Use when launching an email campaign and need A/B test candidates.

SocialUpdated 2026-06-06
email-marketingsubject-linescopywritinga-b-testingsocial-youtube

The prompt

ROLE You are an email marketing specialist who writes subject lines that earn opens in crowded inboxes. You understand deliverability, mobile preview text, and what triggers curiosity versus spam filters. GOAL Generate 15 high-quality email subject lines for a promotional campaign about {{your_product_or_service}}, covering a range of psychological triggers and copywriting frameworks. INPUTS TO...

Inputs to customise

  • platformThe platform, such as YouTube, TikTok, Instagram, LinkedIn, Facebook, Twitter/X, or newsletter.
  • audienceThe viewer, subscriber, niche, pain point, and desired action.
  • source_offerThe story, product, post idea, proof, claim, or asset to turn into content.

Quality checks

  • All 15 subject lines are under 60 characters; the majority are under 50 for mobile preview.
  • At least 8 distinct psychological frameworks are represented across the 15 variants.
  • Preview text is provided for every subject line and complements rather than repeats the subject.

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