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The 10 Best Mailing List Plugins for List Building (2025)

The success of any digital marketing campaign largely revolves around the amount of relevant customer information. That’s why email campaigns are an integral part of any digital marketing initiative.

After all, to make your digital marketing campaign an impactful revenue generator, you need to have the email addresses of relevant online customers. Therefore, it is crucial to building a robust list of email addresses.

If you’re planning to start a WordPress website or a blog, list building plugins can offer a reliable and efficient solution to generate a large list of relevant email addresses.

What Is a List Building Plugin?

List building plugins help you capture user information of maximum website visitors. These plugins offer immersive design, high attention-grabbing capabilities, and various customization features to meet the branding guidelines of your business.

You can quickly leverage the plugin to create an email signup form on your website.

Moreover, the plugin offers various capabilities, including analytics, control to display the popup on specific pages, design customization, drag and drop feature, and pre-built templates to instantly create a popup.

What to Look for in a List Building Plugin?

To put it simply, list building plugins help you encourage your prospects to share their email information and engage with promotions and discounts. A perfect list building plugin should be able to help you grow your mailing list quickly.

All in all, a list building plugin can help you grow your email list as well as conversion rate.

Here are a few key features that you should look for in a capable list building plugin:

There are several paid and open-source list plugins available for WordPress websites. To make your task easier, we collated the roundup of the top 10 list building plugins.

Best List Building Plugins

Here’s a list of some of the best list building plugins:

  1. Thrive Leads
  2. OptimizePress
  3. Optin Forms
  4. WP Subscribe
  5. Bloom by Elegant Themes
  6. Leadpages
  7. OptinMonster
  8. Sumo (formerly SumoMe)
  9. PopUp Domination
  10. Ninja Popups

1. Thrive Leads

Thrive Leads is one of the most popular list building plugins on this list. It offers a faster mechanism to build emailing lists that increases the conversion rate. It comes powered with an attention-grabbing unblockable overlay that displays over the content.

The list building plugin also offers modern user experience and advanced targeting capabilities based on various metrics.

Moreover, you can leverage the option to show or hide forms to different users to boost the conversion rates. It also provides a unique feature, called the ‘Content Lock’ feature, which helps you encourage users to sign-up.

Pros:

Cons:

Price: It costs $67 for a single site license, $97 for 5 licenses,  and 15 licenses cost $147.

2. OptimizePress

OptimizePress is another one of the most acclaimed list building plugins in the market. It has the capability to build highly functional landing pages, funnels, and sales pages. The plugin comes with over 30 highly customizable templates that can help you boost the conversion rate of your website.

Pros:

Cons:

Price: Its subscriptions start from $99 and go up to $199 per annum. 

3. Optin Forms

Optin Forms lets you create highly immersive forms without the need to know HTML or CSS. All you need to do is to select an email solution, choose the right form design, and customize its looks as per your business’ branding requirements.

Moreover, it works with multiple email solutions, including AWeber, iContact, MailChimp, GetResponse, MadMimi, Interspire Email Marketer, ConvertKit, and MailerLite.

Pros:

Cons:

Price: It is available free of cost on WordPress.

4. WP Subscribe

WP Subscribe by MyThemeShop comes equipped with an optimized code to ensure lightning-fast loading on your WordPress website. Moreover, you don’t need any prior technical know-how to install the plugin and build your opt-in form. It also offers a free version with all the relevant features.

On top of that, it also enables you to meet all your branding needs by customizing the plugin through unlimited color. Moreover, to make everything more streamlined, it provides robust integration with various third-party apps, such as Mailchimp, Aweber, and FeedBurner.

Pros:

Cons:

Price: Its price starts from $19 and goes up to $49.

5. Bloom by Elegant Themes

Bloom offers over 100 highly customizable templates, along with multiple display types to meet different UI requirements. The fully responsive plugin also offers highly targeted display settings to boost the conversion rate.

With Bloom, you can also leverage Automatic Fly-In and Pop-Up Triggers to trigger the pop-up after the controlled time delay. Moreover, it provides split testing to help you gauge the performance of multiple variations and better optimization of the campaign.

You can learn more about Bloom in our detailed Elegant Themes review.

Pros:

Cons:

Price: Its yearly subscription costs $89, and a lifetime subscription costs $249.

6. Leadpages

Leadpages is one of the best list building plugins that can help you skyrocket your conversion rate. It offers code-free integration and over 200 high converting templates to boost your conversion rate easily. Moreover, it provides real-time guidance and AB testing to gauge the performance of different parameters and optimize the campaign accordingly.

Pros:

Cons:

Price: Its subscription cost starts from $25 per month and goes up to $199 per month billed annually.

7. OptinMonster

Over a million websites are currently leveraging OptinMonster for their landing pages and list building tasks. It enables users to easily create visually stunning popups. Moreover, one of the best things about it is that it targets the audience in a highly personalized manner to boots sales and conversion rates. It also allows you to test and adjust the campaign in real-time.

Pros:

Cons:

Price: It offers multiple subscription plans starting from $9 per month to $49 per month. All the plans are billed annually.

8. ConvertBox

ConvertBox calls itself the “easy, more intelligent way to convert your visitors.” And if you’ve ever used this plugin, you probably agree (at least to a certain extent).

You have the power to launch lead capture forms, personalized offers, and segmentation funnels to your visitors, all with an easy to use on-site engagement platform.

Pros

Cons

Price: early access + special lifetime pricing of $395 (while it lasts)

9. Convert Pro

With a guaranteed increase in subscribers and conversions how can you go wrong?

Convert Pro provides a highly efficient and easy to use editor, all with the idea of making pop-ups and opt-in forms available to everyone (even though without coding experience).

Best yet, there’s a “huge library of conversion oriented professionally designed templates” so you can hit the ground running.

Pros

Cons

Price: $79/year for Convert Pro ($399 for lifetime access) and $249/year for Agency Bundle ($699 for lifetime access)

10. Ninja Popups

Ninja Popups comes equipped with a highly capable add-on plugin to easily display the same popup design in posts and widgets by using a shortcode. It also offers social network locker and page-level targeting capabilities.

Moreover, it makes everything more streamlined by integrating with numerous third-party apps, including GetResponse, Aweber, iContact, Campaign Monitor, Mailchimp, and Mymail.

Pros:

Cons:

Price: Its license fee starts from $27.

Wrapping-Up

So, this is it! These were some of the best list building plugins available on the internet.

It’s essential to make the final decision after going through all the pros and cons carefully.

If you are a small business with a limited budget, then I’d recommend Optin Forms plugin. Moreover, one of the best things about this list building plugin is that it is available free of cost and offers all the relevant features that you would need.

However, if you’re looking for more advanced features and are willing to shell out a decent budget, then you might want to go with Thrive Leads. It offers all the modern capabilities, including A/B testing, robust analytics, user-friendly drag & drop feature, and so forth. Moreover, you can easily leverage the plugin to offer multiple choices to the customer to boost your conversion rate. The plugin’s license fees are also affordable for businesses of all sizes.

If you’re planning to start a new blog, creating attractive list building forms isn’t enough. You might also want to go through our guide on How to Spice up Your Blog Posts for Better Engagement.

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