AI Email Subject Line Generator

A dozen subject lines to test.

Get ~12 subject lines across proven styles — curiosity, benefit, urgency, question and more — plus preview-text options. Ready to A/B test, and never fakes urgency or discounts.

Across distinct styles — never invents discounts/deadlines ([blanks]).

How it works

  1. 1Describe the email's topic or offer and who it's going to.
  2. 2Get ~12 subject lines across distinct styles (curiosity, benefit, urgency, personal, question, number/list, contrarian, straightforward), plus preview-text options and tips.
  3. 3Pick a few to A/B test, filling any [bracketed] blanks with real specifics.

When to use it

  • You need several genuinely different subject lines to A/B test, not variations of one.
  • You're stuck on the subject and the email is otherwise ready.
  • You want options across styles so you can see what resonates.

Frequently asked questions

Is the Subject Line Generator free?

Every account gets one free run, then it's 1 credit each (free monthly credits cover normal use).

How is this different from the Subject-Line Tester?

This generates many subject lines to choose from; the Subject-Line Tester scores a single line you've written (length, spam words, mobile preview). Use them together — generate here, then test your favourite.

Does it use fake urgency or discounts?

No. It never invents a discount, price or deadline, and avoids clickbait the email can't deliver on. Real specifics are [bracketed] blanks you fill.