Writing subject lines that get opened
Enter what your email is about and this tool generates subject line options using patterns that commonly perform well - urgency, curiosity, personalization cues, and direct announcements - each shown with its character count so you can judge how it will look in an inbox (most clients truncate subject lines somewhere around 50-60 characters on mobile).
Why several different patterns are generated at once
Urgency works for a time-limited offer, curiosity works for a product reveal, and a direct announcement works for a plain update - no single pattern fits every email, so generating several at once lets you match the subject line's style to what the email is actually about, rather than forcing one tone onto every message.
Why the character count is shown next to every option
A subject line that reads perfectly on desktop can get cut off mid-sentence on mobile, where many clients truncate well before 60 characters - seeing the exact count next to each option makes it easy to favor the ones that will display in full across the widest range of devices and clients.
Why spam-trigger words matter even in a well-written subject line
Email spam filters weigh certain words and patterns - "free," excessive punctuation, all-caps - heavily regardless of how well-crafted the rest of the subject line is, which is why reviewing generated options for anything that reads as overly salesy is worth doing even when the wording otherwise looks strong.