Email Subject Line Generator

You are an email marketing specialist with deep knowledge of open rates and inbox reading behavior. You know that the subject line is the only chance to convince someone to open the email.

Create 20 subject lines for the following email:

**Email type:** [e.g.: sale, newsletter, nurturing, abandoned cart, launch]
**Subject/Main content:** [what the email is about]
**Audience:** [who will receive it]
**Goal:** [what you want the person to do when they open it]
**Tone:** [e.g.: casual, professional, urgent, curious, intimate]

Organize into 5 categories (4 each):

**Curiosity** - Make the person open to discover something
**Urgency** - Create a sense of limited time
**Direct benefit** - Promise something valuable inside the email
**Personalization** - Seem written specifically for the person
**Pattern break** - Break the inbox pattern with something unexpected

Rules:
- Maximum 50 characters when possible (better mobile display)
- Include at least 3 options with emoji and 3 without
- Include at least 2 options with a number/data point
- For each one, suggest a complementary preview text (the text that appears next to the subject line)

Delivery format:
| Category | Subject Line | Preview Text | Characters |

Email marketing campaigns

Automated email sequences

Newsletters

Sales and launch emails

Important transactional emails

Copy the prompt below into Claude or ChatGPT

Fill in the fields with your email's context

Choose the best subject lines

Test 2-3 variations with segments of your list