How to Write Catchy Email Subject Lines

Karen Le
November 20, 2022

Email subject lines are the first thing your email recipients see in their inboxes. 


So, it's essential to ensure your email subject lines are effective to get your recipients to open and read your emails.


Email is a powerful marketing and communication tool. For instance, 73% of companies have ranked email as an "excellent" marketing channel for their return on investment.


According to Optinmonster, 33% of email recipients open emails based on catchy email subject lines.


The question is, how can you pique readers' interests to encourage them to open your emails?


In this article, we will be sharing how to write creative subject lines and the most common words used in subject lines to help you increase your email's open rates. 

How to write creative subject lines

Determine The Type Of Subject Lines

There are many ways how you can approach subject lines. Let's start by looking at what industry you are in. Some subject lines are crafted and connect more to your industry than to another.

If you're not sure what email subject lines will perform best for your industry, try out a few different types to see which one works best!

Straight To The Point

Share what your intention is for sending the email.

The body of an email is important. However, if it didn't get opened in the first place, you would've spent all that time crafting that email not to receive a response. 

The email subject line is the first impression of what the recipient will see when receiving your email. 

Make it as easy and concise as possible for the person to understand the email’s content and purpose.

Power Words In Email Subject Lines

As mentioned, power words hold power.

Power words are descriptive, persuasive works you can use in your email subject lines that trigger an emotional response.

For instance, according to Invesp, emails that included 'free' in their subject lines were opened 10% more than those that did not have it.

A few examples of power words include:

  • Free
  • Create
  • Easy
  • Learn
  • Win
  • Ultimate
  • Exclusive
  • Bonus
  • New
  • Save
  • Now
  • Exclusive
  • Hurry

How Long Should Email Subject Lines Be

Email subject lines should contain key takeaways, keywords, and be short in length. You want to be as concise as possible because there is very little space in the subject line area.

For instance, 35% of business professionals use their mobile devices to check their emails.

With such a tiny screen, you need to let the email recipient understand the email's purpose.

Use Subject Lines And Preview Texts In Synergy

The subject line and preview text should be in synergy with one another. They should go hand in hand to give the person a brief idea of the email.


For example, if you're announcing a sale, your subject line could be, "Get 25% off your purchase!" and then followed by the preview text stating, "Shop now for 25% off your purchase!"


Before sending out the email, preview what the email will read.

Catchy email subject line examples for

For sales

  • Yes, this is for you {{Your Name}}
  • The truth about getting leads
  • Get more referrals
  • [Final Chance] The doors are closing 
  • Flash sale ends tonight
  • [Courtesy reminder[ Last chances: Only a few hours left]
  • Time is running out
  • Sale starts now!
  • Final Chance- sale ends tonight
  • Save big this week

For personal use cases

  • Happy birthday {{Your Name}}
  • Are you coming at 6?
  • Are you coming?
  • [Gift inside] for {Your name}

For retargeting

  • Did you RSVP?
  • Did you forget something?
  • Here's 25% off
  • Good news: we saved your shopping cart

To address pain points

  • Are you struggling with [insert pain point]?
  • Tired of [insert pain point]?
  • Is this what you want?
  • Are you not getting leads?
  • They lied to you about [insert pain point]
  • Don't have a large audience?
  • How to get more leads
  • Is this what you want?
  • This one change will help you overcome [insert pain point]

To trigger greed

  • 50% off your favourites
  • Buy one get one 50% off
  • Free shipping with purchases over $50
  • Flash Sale Alert
  • Sale ends tonight
  • Buy one get one free

To trigger vanity

  • Hello beautiful, yes we are talking to you!
  • Hello handsome
  • The most popular items this season
  • You are one in a million
  • [Insert name], you are looking sharp!
  • New arrivals just for you
  • You're invited to the VIP list
  • Come see what everyone is talking about

To trigger curiosity

  • Hey [Insert Name], can you keep this a secret?
  • [Insert Name], you're invited.
  • [Insert Name], you don't want to miss out!
  • Don't open this email
  • My heart is broken…
  • Did you watch this yet?
  • Guess who's back?
  • Is this what you want?
  • You won't believe what happened next…

To trigger fear

  • Hurry before it's too late!
  • Last chance!
  • Quantity is limited
  • Sale ends tonight
  • Only a few left in stock
  • Get this now before it's gone

For cold emails

  • Introduction: [Your Name] from [Insert company name]
  • Hello [nsert their Name]
  • Congratulations, you've been selected
  • Are you the right fit?
  • Can I pick your brain for 5 minutes?
  • I read your article about [insert reason]

For marketing

  • Ready to grow your audience?
  • Reduce email unsubscribes by doing this one thing
  • Get 50+ leads today
  • Here's how to re-engage your subscribers
  • How to turn unopened into opens
  • The quickest way to improve your SEO
  • How to increase your open rates
  • How to get your emails opened every time
  • Wrapping up
  • Will discounting your offer mean more buyers?
  • How to get 100 leads today

For newsletter

  • This week's top stories
  • Guest post by [Insert author's Name]
  • Check out what's new this week
  • Weekly roundup
  • Weekly roundup of the goodies
  • Daily newsletter
  • Weekly newsletter
  • Missed last week? Here's what you missed

For introduction

  • Introduction: [Your First Name, Last Name]
  • Introduction: [Your First Name, Last Name] at [Name of company]
  • Hello, my name is [Your First Name, Last Name]
  • Nice to meet you. I'm [Your First Name, Last Name]
  • Now available: [insert product launch]
  • New release: [insert product/service launch]

For survey

  • We want to hear from you
  • Tell us what you think
  • Your feedback matters to us
  • You're invited to take the survey

For webinars

  • Join us for a [insert title of webinar]
  • Learn more about [insert title of webinar]
  • You're invited: [insert Name of webinar]
  • [Event name] is just around the corner!
  • Did you RSVP yet?
  • Details about [insert title of webinar]
  • You're invited to [insert title of webinar]

For donation

  • Donate now and make a difference
  • Make a difference
  • See how your donation makes an impact
  • Thank you for your donation
  • Your contribution can help change lives
  • Could you help us reach our goal?

For meeting

  • Thank you for attending [meeting title]
  • Thank you for your time
  • Thank you
  • I appreciate your time
  • Reminder: [Meeting Title]
  • [Meeting title] is just around the corner
  • Schedule your meeting
  • Subject line: [First Interview Request] [Company Name] - [Insert Job Title]
  • Schedule your interview

For more interview meeting-related subject lines, check out our article here.

For real-estate

  • Open House: [list out the property address]
  • New listing: [Property address]

For school

  • Graduation ceremony: [date]
  • Class of [insert year]- Save the date!

For events

  • You're invited to [Name of event] on [date]
  • You’re invited to [name of event] on [date] and [date]
  • [Event Name]: [Event Date]
  • You are invited!
  • We invite you to [Name of event]

For job applications

  • Follow up: [insert job title] application
  • Next Steps: thank you for applying
  • Thank you for applying: next steps
  • Your application has been received
  • Confirmation: your application has been received

For recruiters

  • You're invited to interview: [insert job title]
  • Thank you for interviewing: next steps
  • Congratulations, here are the next steps
  • We're looking for a [insert job title]
  • You're invited to interview: [job title]
  • Congratulations!

Most common words in creative email subject lines

As you might have noticed, there are many common words used in creative email subject lines. 


They just work.


Common words will vary depending on which industry you are in.


For instance, according to bananatag, some common words used in internal email subject lines were:

  • Today
  • Inside
  • Weekly
  • News
  • Update
  • [Insert month]
  • Reminder
  • Message
  • Recap 
  • Report
  • Bulletin
  • Core

Alchemy Worx analyzed data by looking at 21 billion marketing emails sent by 2,500 brands. 

They reported that the best words to use were:

  • Upgrade
  • Just
  • Content
  • Go
  • Wonderful


While the worst words were:

  • Miss
  • Deals!
  • Groovy
  • Conditions
  • Friday!


They further breakdown how well words did in different industries in their findings.


A catchy email subject line can help you increase your email open rates, pique readers' interests and encourage them to click through to your content. However, creating creative and compelling subject lines can be challenging. You need to look into your industry, test out various subject lines and analyze what is doing well, what is not doing well, and where there is an opportunity for growth.

In this article, we've shared some of the most common words used in creative email subject lines and tips and examples to help you write your own.

We hope this article has given you further insight and helped craft your next email subject line.

Are you looking for additional help on email subject lines?

We have a free online email subject line generator to help you write catchy and creative copy for your next email!

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