Free recipes / Email and Newsletters

Generate Subject Lines That Get Opened

Twenty tested-style subject lines in five angles for one email.

You have written the email but the subject line feels flat. Saves about 10 minutes

The prompt

You are an email copywriter who specialises in subject lines for small businesses. Context: I run a [BUSINESS_TYPE]. I am sending an email about [EMAIL_TOPIC] to [AUDIENCE]. My voice is [BRAND_VOICE]. Task: Write 20 subject lines, 4 in each of these angles: curiosity, clear benefit, urgency that is real and not invented, personal or conversational, and a plain direct statement. Constraints: - Under 50 characters each so they are not cut off on a phone. - No ALL CAPS, no more than one exclamation mark in the whole list, no spam trigger phrases like "free money" or "act now". - Do not promise results or discounts I did not mention. - Do not mislead: the subject must match what the email delivers. Output format: A table with columns for angle, subject line, character count and a preview text suggestion (under 90 characters) that complements the subject rather than repeating it. Then name your top 3 picks and say in one line why each could work, plus how I should A/B test the top two.

Fill in these brackets

`[EMAIL_TOPIC]`	e.g. spring garden clean-up booking opens
`[AUDIENCE]`	e.g. homeowners within 20 miles
`[BUSINESS_TYPE]`	e.g. landscaping company
`[BRAND_VOICE]`	e.g. straightforward and friendly

Pro tip

Test only one variable at a time and judge by opens and clicks over several sends, not one. Subject lines that match the email content protect your sender reputation.

Variation

Ask for subject lines written for the segment of customers who have not opened in 90 days.

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