Text & chat prompt
Generate email subject lines that get opened
Generate email subject lines that get opened: a free, copy-paste prompt for ChatGPT, Gemini and Claude. Paste the prompt and replace each [BRACKETED] field with your own details.
The prompt
Write 15 email subject lines for this email. Email is about: [TOPIC] Audience: [WHO] Goal: [OPEN / CLICK / REPLY] Give 3 each in these styles: curiosity, benefit, urgency (honest, no fake deadlines), personal and short (under 30 characters). Mark your top 3 and say why. No ALL CAPS, no more than one emoji, no spammy words like "free" or "act now".
Pro tip: A/B test your top two. Change only the subject line so the result is clean.
How to use this prompt
- Open ChatGPT and start a new chat.
- Paste the prompt.
- Replace each [BRACKETED] field with your real details and paste in your own text where asked.
- Reply with follow-ups such as "make it shorter" or "make it sound more like me".
Prompt at a glance
- Category
- Text & chat
- Works with
- ChatGPT · Gemini · Claude
- Length
- 62 words
- Fields to fill in
- TOPIC, WHO, OPEN / CLICK / REPLY
- Last updated
Frequently asked questions
Which AI tools work with this prompt?
It is written for ChatGPT, Gemini and Claude. Paste it into your preferred tool and adjust the wording if the result is off.
What do I need to fill in?
Replace these fields before you send it: TOPIC, WHO, OPEN / CLICK / REPLY. Each field shows an example in the prompt.
Should I paste private information into the prompt?
Only what the task needs. Remove names, contact details and other sensitive data before pasting a resume or document into any AI tool.
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