Tool
AI subject line generator:
Create high-converting email headlines
Check out our ultimate guide to A/B testing.
Use cases for AI-generated subject lines
B2B sales & cold outreach
Cold emailing is a volume game, but the subject line must feel personal. Use the generator to create "pattern interrupt" headlines that don't look like typical sales pitches. Example: "Quick question regarding [Company Name]'s Q4 strategy."
E-commerce & retail
For retail, urgency and value are king. The AI can help you find fresh ways to announce a sale without sounding like every other brand in the "Promotions" tab. Example: "Your cart is lonely (and 15% off for the next 2 hours)."
Content newsletters
If you’re a thought leader or a publisher, your subject line needs to promise value. The AI focuses on "how-to" and "listicle" formats that have historically high open rates. Example: "5 ways to automate your email workflow by Friday."
FAQ
What is an AI subject line generator?
An AI subject line generator is a tool that uses machine learning (like GPT-4 or proprietary models) to generate catchy, relevant, and high-performing email headlines based on a short description of your email content.
What is the ideal length for a subject line?
For mobile optimization, we recommend keeping subject lines between 40 and 60 characters. Since over 60% of emails are opened on mobile devices, our AI subject line generator prioritizes brevity to ensure your message isn't cut off.
Will AI-generated subject lines trigger spam filters?
Our tool is designed to avoid "spammy" language (like "FREE $$$ NOW"). However, it is always best practice to avoid excessive capitalization or multiple exclamation points to ensure high deliverability.
Why are email subject lines so important?
Should I use emojis in my subject lines?
Yes, in moderation!✨Emojis can increase open rates by helping your email stand out visually. Our generator can suggest relevant emojis based on the sentiment of your copy.
How do I improve my email open rates?
Beyond using a great subject line, you should optimize your preheader text, maintain a clean email list to avoid spam filters, and ensure your "from" name is recognizable. High-quality responsive email design also plays a major role in keeping subscribers engaged over time.
