Cold Outreach Email Subject Line Generator — Free AI Tool
Generate cold email subject lines that get opened with AI. Perfect for sales prospecting, partnerships, and business development. Free tool.
Cold email open rates average just 15-25%. Your subject line is doing all the heavy lifting to earn that open from someone who doesn't know you. The best cold outreach subjects feel personal, relevant, and non-salesy — like a message from a colleague, not a pitch.
Tips for Cold Outreach
Keep it ultra-short: 1-5 word subjects have the highest open rates for cold emails
Reference something specific: their company, recent news, or mutual connection
Avoid sales language: 'Quick question' outperforms 'Exclusive offer for you'
Lowercase, informal subjects feel more personal: 'quick thought about [company]'
Try This Example
“Generate cold email subject lines for a B2B SaaS company reaching out to marketing directors”