Email Subject Lines That Actually Get Opened

Start by describing your product, service, or email topic in detail — the more context you give the AI, the more specific and compelling your subject lines will be. Choose the right Email Goal for your campaign (sales, engagement, re-activation) as this shapes the psychological triggers used in the copy. Select your number of subjects and writing style — “Mixed” is recommended as it gives you the widest variety for A/B testing. Once generated, you’ll see each subject line as a clickable card — click any one to instantly copy it to your clipboard. Use “Copy All” to get everything at once. Run at least 2 subject lines as A/B tests in your email platform (Mailchimp, Klaviyo, ConvertKit). After 24 hours, check open rates and declare a winner. Run this generator 2–3 times for each campaign — more variations means better testing and higher peak performance.