Subject Line Analyzer 📊

Score your email subject line to increase your open rates instantly.

Your Subject Line

Write Catchy Email Subject Lines

Your subject line is the most important part of your email. If it doesn't hook the reader, your email won't be opened. Our Free Subject Line Analyzer evaluates your text based on proven marketing metrics to estimate its click-through potential.

Best Practices for High Open Rates:

  • Length: Keep it between 40 to 60 characters so it doesn't get cut off on mobile devices.
  • Word Count: The sweet spot is usually between 5 to 8 words.
  • Numbers: Subject lines with numbers (e.g., "3 tips for...") tend to have 45% higher open rates.
  • Questions: Asking a question creates curiosity and drives engagement.