Do your subject lines draw readers in and drive them to open your emails?
If not, you need to make use of an email subject line tester before hitting send.
But what's an email subject line tester?
It's a tool that analyzes email subject lines and tells you what you need to do to improve them. It checks for factors such as length, emotion, grammar, punctuation, personalization, etc.
Why should you care about subject lines?
Consider how many emails your recipients receive in a day from different sources. Then, factor in research reporting that the total number of emails sent and received will exceed 333 billion in 2022.
Image via Radicati
This begs the question:
Why should the recipient choose to open your email over others?
It's for this reason you need a subject line tester.
You need a tool that can increase your chances of getting higher open and click-through rates for your emails. A tool that recommends what words you need to change or include to improve deliverability and readability.
But which are the best subject line tester tools?
Find out below.
Disclaimer: This content contains some affiliate links for which we will earn a commission (at no additional cost to you). This is to ensure that we can keep creating free content for you.
Subject lines are the first thing your recipient sees in their email inbox.
These are often the deciding factor on whether the recipient opens your email or not. Therefore, it's crucial to stop relying on intuition and leverage tools that offer cold hard data on creating subject lines that work.
And in this section, we list out the best subject line tester tools your business can use to improve your email open rates.
Check these out.
Image via Attrock
We kickstart with our very own Email Subject Line Analyzer.
We are a digital marketing company, and since email marketing is part of the services we offer when helping brands drive great returns, we created a tool to make it possible.
But what makes our email subject line tester stand out?
The Email Subject Line Analyzer by Attrock assesses and scores your subject lines based on whether they can drive more clicks. This way, it becomes easy for you to write compelling and emotional subject lines that get more clicks and opens.
Additionally, you get suggestions on how to improve your subject line, including the ideal number of words, personalization, character count, etc. You can also access a word bank with words you can consider adding to your subject line.
But that's not all.
You also get a preview of how your email will look in your recipient's inbox and what it lacks.
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Image via Zurb
This subject line tester ensures that your subject lines display properly in the recipients inboxes without cutting off words.
Since most people open emails based on subject lines, you need to ensure you write subject lines that increase click-through and open rates so that you can increase conversions.
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Image via SubjectLine.com
This subject line tester gives you an overall score of your subject line with reasons that made you lose points.
It's one of the email marketing tools you can leverage to better understand what kind of email content can improve open and response rates.
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Image via CoSchedule
Improve your email and newsletter open rates by leveraging this subject line tester from CoSchedule.
Why use it?
You get suggestions on how to optimize the subject line for higher open rates.
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Image via SendCheckIt
This subject line tester claims to compare your subject line against more than 100K other emails sent by marketers.
And considering how content personalization is crucial, this subject line tester also scores your performance based on this factor.
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Image via Email Subject Line Grader
This subject line tester by Net Atlantic helps you score your headline and calculate character count.
It’s also a good tool when you want to calculate word balance and mix.
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Image via Automizy
Unlike other subject line testers that score against best practices, Mizy leverages deep learning to analyze email campaigns and make predictions.
It's an artificial intelligence-powered platform that grades subject lines using data from over 1 million campaigns.
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Image via Moosend
With the Refine subject line tester, you leverage artificial intelligence to test subject lines and create those that resonate with your audience.
And if you want to improve your email lead generation and conversion rate, you need to leverage a subject line tester like this one to get higher open rates.
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Image via Advanced Marketing Institute
If you want to find the emotional marketing value of your subject lines, you can use this ehadline analyzer by AMI. It is technically not an email subject line tester, but can act as one for this specific purpose.If you want to find the emotional marketing value of your subject lines, you can use this ehadline analyzer by AMI. It is technically not an email subject line tester, but can act as one for this specific purpose..
And since successful copywriting requires you to write content that touches your clients emotionally, you need a subject line tester that factors in this variable.
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Image via Capitalize My Title
This subject line tester uses over 60 different data points to score your subject lines.
Want to know the best part?
You can use it to capitalize your subject lines once you finish correcting them for readability and deliverability.
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Image via MailNinja
MailNinja's subject line tester is another tool that offers in-depth analysis on what you need to change for your subject line to drive positive results.
Incorporating these recommendations may be the key to boosting your email open rates and staying ahead of the competition.
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Image Via IsItWP
With the IsItWP email subject line tester, you can ensure that your subject lines have the perfect word balance, are scannable, and get straight to the point.
Additionally, it can help you leverage power words that improve your open rates.
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Image via Mailchimp
If you are looking for a subject line tester that offers comprehensive features to ace your email marketing campaign, Mailchimp is a great choice. Its Subject Line Helper is a tool that comes free with your Mailchimp account.
In addition to offering a subject line tester tool, Mailchimp is used to build ad campaigns, create beautiful landing pages, and send branded emails.
Let’s see what else makes Mailchimp an effective subject line tester.
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Image via Postmark
Are a large amount of the emails you send being marked as spam?
You should consider using a subject line tester tool such as Postmark’s Spam Check. This tool not only acts as a subject line tester but helps make sure that none of your emails are being misfiled as spam.
Read on to know what other features make the Spam Check a viable subject line tester tool.
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Image via Omnisend
Omnisend is a must-have subject line tester tool for teams who are serious about how they write emails. In addition to subject line testing, the tool also helps you with segment testing, email reporting, and email marketing automation.
You can A/B test your email subject lines to zero in on the best one.
That’s not all. The subject line tester evaluates, words, characters, and the length of the subject line and gives you suggestions on replacing spam-triggering words with safer words.
Check out this subject line tester’s features, pros, and cons.
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Image via Lavender
Lavender is the subject line tester you need to write impactful emails that have high open and response rates.
It offers AI-powered features that help you create persuasive emails, and ace your email marketing campaigns.
Let’s take a closer look at this subject line tester’s features, pros, and cons.
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Image via Mailshake
Mailshake is a great tool for any marketer who needs to run an email campaign. It's an easy-to-use subject line tester that will help you send out emails that deliver the results you seek.
Mailshake offers a variety of features such as A/B testing, automation, and drip campaigns. You can also use Mailshake for social media marketing and website traffic optimization.
Check out the features of this subject line tester.
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Q1. How do you test a subject line?
A. Use a subject line tester like the one offered by Attrock to test various aspects, including:
Q2. Why is subject line testing important?
A. Testing your subject lines before sending the emails helps you optimize them and ensure that they get the desired open rates. Subject line testing can help you avoid common mistakes and create engaging and high-coverting subject lines that compel recipients to click on your email.
Q3. What is Subject line A/B testing?
A. It's a process of comparing how one version of your email subject line performs when sent to an audience compared to another.
For example, you can send one version of your subject line to a percentage of your recipients and send another version to the rest. Then, after comparison, the subject line that receives the most opens emerges as a winner.
You can then use this winning subject line when sending emails to the rest of your contacts.
Q4. What is the most reliable way to test whether your subject line will get more people to open their email?
A. The simple answer is to use a subject line tester to optimize your subject lines before sending your emails. These tools analyze your subject lines on multiple parameters and give suggestions on how to improve them.
Q5. What is subject line optimization?
A. It is the process of analyzing your subject lines using a testing tool and then incorporating the suggestions provided to make them more engaging.
Q6. What are ssubject lines?
A. Subject lines are a sort of introduction to an email and are visible in a recipient’s inbox even if they do not open an email. Email subject lines provide information about the email and help people decide whether they want to open the email.
Q7. Are subject line testing sites valid?
A. Yes, they are.
They make the process of testing subject lines easier and provide a detailed analysis of subject lines and ways to improve them.
Q8. Which is the best email subject line tester?
A. Use this list to find some of the best email subject line testers:
With the right subject line tester, you can improve deliverability and open rates of your emails.
So, keep testing your subject lines, analyze different metrics, and see what works best for your recipients.
Which of the subject line tester tools do you like?
Share your experience with the subject line tester and how it helped you improve your email marketing results in the comments.
Disclaimer: This content contains some affiliate links for which we will earn a commission (at no additional cost to you). This is to ensure that we can keep creating free content for you.
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