The Difference Between “Delete” and “Open” is 5 Words.
Your email content could be Pulitzer-worthy, but if your subject line is boring, no one will ever know. Most creators treat subject lines as an afterthought. That’s a fatal mistake. The Email Subject Line Tester & Scorer acts as your ruthless, data-driven copy editor. Inspired by the advanced copywriting principles in our AI Content Accelerator, this tool doesn’t just grade your homework; it fixes it.
Input your draft, and the AI evaluates it against the four pillars of high-converting copy: Curiosity, Benefit, Urgency, and Brevity. It gives you a brutal score out of 100 and then generates 5 superior alternatives designed to trigger psychological “open loops” in your reader’s brain. Stop guessing what works and start sending emails that get read.
Pro Tip: Use the “Primary Goal” selector to tell the AI if you want to drive sales (direct) or build relationships (soft). The tool adjusts the psychological triggers accordingly.
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