We’ve all been there: staring at the blinking cursor, trying to craft the perfect subject line that makes people open our emails. Because let’s face it, if your subject line flops, your carefully crafted message might as well be shouting into the void.
The truth? Writing subject lines that get clicks isn’t just an art, it’s a science. And like any science, there are proven strategies you can use to increase your open rates and make your emails impossible to ignore.
Here’s how to write subject lines that get clicked every single time.
Keep It Short and Sweet
Your subject line is the first thing people see, often on a tiny phone screen. Aim for 40-50 characters max so it won’t get cut off. Think of it like a headline: punchy, clear, and intriguing.
Example:
- “Your Weekend Plans, Sorted”
- “Unlock Your Exclusive Discount Today”
Spark Curiosity (Without Being Clickbait)
Curiosity is a powerful motivator, but don’t promise something you can’t deliver. That’s the quickest way to lose trust. Instead, hint at a benefit or tease a secret.
Example:
- “Why Everyone’s Talking About This New Trend”
- “The One Email You’ll Want to Read This Week”
Use Numbers and Lists
Numbers stand out in a sea of text and set expectations. People love lists because they’re easy to digest.
Example:
- “5 Ways to Boost Your Productivity Today”
- “3 Secrets to Writing Irresistible Subject Lines”
Personalize When Possible
Including a name or relevant detail can increase open rates because it feels tailored. Many email platforms support personalization tags, so don’t hesitate to use them.
Example:
- “Sarah, Here’s Something Just for You”
- “John, Ready to Take Your Business to the Next Level?”
Create Urgency or Scarcity (Tastefully)
Limited-time offers or deadlines make people act faster. Just be genuine; false urgency is easy to spot and can hurt your reputation.
Example:
- “Last Chance: 24 Hours Left to Save 20%”
- “Only a Few Spots Left — Don’t Miss Out”
Ask a Question
Questions invite readers to pause and think, and that engagement can translate to clicks.
Example:
- “Struggling to Find New Clients?”
- “Ready to Transform Your Morning Routine?”
Test, Test, Test
What works for one audience might flop for another. Use A/B testing to experiment with different styles, tones, and lengths — then double down on what gets results.
Bonus Tip: Avoid Spammy Words
Words like “Free,” “Buy now,” or excessive punctuation (!!!) can trigger spam filters or turn off readers. Keep it professional but conversational.
Wrapping It Up
Great subject lines are like the perfect handshake — they invite people in and build trust before they even read your message. Keeping them short, curious, personal, and action-driven will boost your open rates and build stronger connections with your audience.
Next time you draft an email, spend as much time on the subject line as the message itself. Because in the inbox, first impressions do matter.


