Email Subject Line Generator
Generate high-open-rate email subject lines with psychological triggers.
Updated Feb 20, 2026
Variables to Customize
0/6 filledPrompt
Generate 20 email subject lines for: Email purpose: {{purpose}} Audience: {{audience}} Key message: {{message}} For each subject line: - Keep under 50 characters (mobile-friendly) - Label the psychological trigger used: a) Curiosity gap b) Urgency/scarcity c) Personal benefit d) Social proof e) Controversy/contrarian f) Question g) How-to/number h) Personalization - Rate predicted open rate: ⭐ to ⭐⭐⭐⭐⭐ Provide: - 10 options for the main send - 5 A/B test variants - 5 'risky but could work' options Industry: {{industry}} Brand tone: {{formal/casual/playful}} Avoid: {{spam_triggers_or_words}}
Powered by Hugging Face Inference API
Pro Tips
- •Labeling the psychological trigger makes subject line writing systematic instead of guesswork.
Prompt Output
See what this prompt produces — real output screenshots from community members, coming soon.
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