How to Write Subject Lines That Get Opened

Craft Emails That Can’t Be Ignored — Start your topic-based website with Summrly and generate AI-powered headline content

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Let's get you set up with your first content topic. This will only take a few minutes.

What to Expect

We'll guide you through 5 simple steps to create your first content topic:

Choose a topic - The main subject you want to create content about
Add keywords - Terms your audience searches for
Set brand details - Tell us about your business
Select template - Choose your content layout
Start creating - Generate your first content

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Why this matters

This information helps us tailor the content to your brand's voice and style. We'll use it to:

Match your brand's tone and personality
Incorporate your unique value propositions
Reference your products/services naturally
Maintain consistency across all content

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Our professional tone creates content that is polished, well-researched, and authoritative while maintaining clarity and precision in communication.

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Published on: | Author: Summrly Team

Write Subject Lines That Get Opened — And Skyrocket Your Email Performance

You don’t need to guess what works in the inbox. With Summrly, you create a content-first website where AI generates high-CTR, curiosity-driven email subject lines — so your messages get seen, not skipped.

Why a Content-First Website Wins at Inbox Attention

Most subject lines are boring or clickbaity. Summrly uses proven psychology: urgency, curiosity, personalization, and benefit — to generate lines that stop scrollers and drive opens.

How to Write High-Open Subject Lines in 5 Steps

Create Your First Topic – Enter your email type (e.g., “promo,” “newsletter,” “announcement”).
Set Up Your Content Focus – Define your goal (e.g., “drive clicks,” “announce launch”).
Add Keywords – Include terms like “open me,” “you won’t believe,” or “last chance.”
Brand Details – Add your tone (e.g., “urgent,” “funny”) and CTA.
Complete Setup – Generate AI-powered subject lines and A/B test them.

Ready to turn 20% open rates into 45%?

Enter your topic in the form above and let Summrly generate your first scroll-stopping subject line — no more ignored emails.

Case Study: GlowWell Skincare

A brand’s emails had a 19% open rate. They used Summrly to generate AI-powered lines like “Your skin will glow by Friday (here’s how)” and “We’re dropping a new serum at midnight.” Open rate jumped to 41%, and revenue from email increased by 120%.

Frequently Asked Questions

Can AI write good subject lines?
Yes. Summrly uses emotional triggers, clarity, and curiosity — proven to increase opens.
Can I A/B test the lines?
Absolutely. Generate 5–10 variations and test the top performers.
Does it work for all email types?
Yes. Ideal for newsletters, promotions, announcements, and transactional emails.
Will this improve my CTR?
Yes. More opens = more clicks = more conversions.
How do I get started?
Enter your topic in the form above and generate your first high-CTR subject line. Craft Emails That Can’t Be Ignored — Start your topic-based website with Summrly and generate AI-powered headline content.

Summary

You don’t need to settle for low open rates. With Summrly, you create a content-first website that generates attention-grabbing, high-converting subject lines — so your emails get opened and acted on. Enter your topic in the form above and start dominating the inbox.