7 Best Free Optin Plugins for WordPress

  • By Darrel Wilson
  • Last Updated: November 21, 2019

Building your email list helps you nurture the relationship with your potential customers and clients. It allows you to establish authority, build credibility, and to turn those subscribers into actual customers by creating special offers or sending them a subscribers-only discount code.

But to build your email list, you need to add optin forms to your site, otherwise your website visitors won’t be able to sign up for your email list. Luckily, there is no shortage of optin plugins for WordPress and in this post, I’ve rounded up the best free plugins that you use to start growing your email list.


The first plugin on the list, MailOptin, touts itself as the ultimate WordPress plugin for growing your email list. The plugin allows you to create popup forms, inline forms which can be added before or after your blog posts, and sidebar forms which can be added to any sidebar or widgetized area on your website.

The MailOptin plugin comes with an easy to use form builder and template builder so you can easily save your forms as templates and reuse them. The plugin works out of the box with all popular email marketing service providers such as MailChimp, AWeber, ConvertKit, and more.

What’s more, the MailOptin plugin allows you to target which page or post a specific optin should show and you can integrate MailOptin with Elementor page builder.

It’s worth mentioning that MailOptin also comes with a premium version in case you need more advanced display rules or optin forms such as slideins. The premium version also includes the ability to A/B test your forms. Premium version starts at $69/year for one-site license.


Icegram is another popular plugin for WordPress that makes it easy to add different types of optin forms to your WordPress site. This plugin claims to be a multipurpose plugin that offers a lot more than simple optin forms.

For starters, you can add call to actions anywhere on your site and direct them to any page. You can also add announcement bars, slide-in forms, toast notifications, and more.

The Icegram plugin has an easy to use form builder and a collection of premade themes that you can use as a starting point for your forms. In terms of display rules, you can decide where and when to show your campaigns and optin forms. Display rules include specific pages, categories or posts; to certain users; on specific schedule, via shortcode, and many other rules.

This plugin also comes with powerful analytics and reporting features so you can easily see how your optin forms are performing.

The Icegram plugin also has a premium version which is worth considering if you want features such as abandoned cart recovery and more advanced features such as exit-intent popups. Premium version starts at $97/year for one-site license.


The next plugin on this list, Hustle, was developed by WPMU Dev team. The plugin was designed and developed to help you grow your email list, build your social media following, get more conversions, and display targeted ads across your site with pop-ups, slide-ins, widgets, and shortcodes.

The Hustle plugin makes it easy to design and customize your optin forms. You can choose colors, animations, layouts, drop shadows, and display conditions for pop-ups, slide-ins, email opt-ins, and social share bars. It also integrates with all major email marketing platforms such as Mailchimp, Aweber, Active Campaign, ConvertKit, and others.

What’s more, the Hustle plugin supports both Gutenberg and Classic editor and uses Google ReCAPTCHA to protect your signup forms from spam.

The free version of the plugin offers 1 email form, 1 social bar, and 1 free custom content ad which is more than enough to get you started. If you need more optin forms or social bars, you’ll need to upgrade to the paid version of the plugin which is available as a part of WPMU Dev membership.

Optin Forms


The Optin Forms plugin offers an easy way to create attractive optin forms for your site. The plugin comes with a number of predesigned themes that you can add to your posts and pages with a simple mouse-click, or use a shortcode to add it to specific posts and pages.

While not as feature-rich as some of the other plugins on this list, this plugin is as straightforward as they come and doesn’t overwhelm you with a ton of features. It integrates with the following email marketing platforms: AWeber, iContact, MailChimp

GetResponse, MadMimi, Interspire Email Marketer, and ConvertKit.

You’ll get access to 5 premade themes and you can easily adjust colors and fonts to match your website and brand. This plugin is completely free.

MailChimp for WP

MailChimp for WP is a well-known plugin that makes it easy to integrate your WordPress website with your Mailchimp list. You can create good looking opt-in forms or integrate with any existing form on your site, like your comment, contact or checkout form.

As the name suggests, this plugin works only with Mailchimp so it’s a great choice if you use Mailchimp and don’t want a lot of fancy features. The plugin also integrates with WooCommerce so you can easily add a signup checkbox for your email list to your checkout page.

There is also a premium version of the plugin that allows you to add multiple forms, has advanced e-commerce functionality, and includes more customization options. The premium version starts at $59/year for one-site license.


MailMunch is another popular plugin for WordPress that makes it easy to add various optin forms to your site. You can choose from popups, scroll boxes, inline forms, top bars, and sidebar forms, each of which can be customized to your liking. The MailMunch plugin also includes several beautiful and fully customizable themes that you can use as a starting point.

The plugin comes with the ability to split-test the performance of your forms and you can also choose whether to display the popover when a user enters your page, or when they’re about to exit your site. What makes MailMunch stand out is the exit-intent technology for popups that’s available even on the free plan.

The MailMunch plugin connects with all major email marketing providers including AWeber, MailChimp, Constant Contact, GetResponse, and Campaign Monitor.

Keep in mind that you will need to create a free account on the plugin’s official website which allows you to use the plugin on 1 website. If you need to use the plugin on multiple websites, you’ll need to sign up for a paid plan which starts at $15/mo.

Popup Alley

The Popup Alley plugin is one of the few free plugin on this list that comes with exit-intent technology on the free plan. The plugin comes with a visual editor that allows you to customize the look-and-feel of your popups with an instant preview.

You can create 2 optin forms with the free Popup Alley plugin and use a premade theme as a starting point. The forms can be added to any post, page or sidebar. In addition to that, the optin forms are responsive and mobile-friendly.

Premium version of the plugin comes with the ability to create and add an unlimited number of forms to your site, have full control over the style settings, and add advanced types of forms such as 2-step optins, and more. The premium version of the plugin is available for $99/year.

Final Thoughts

An email list full of engaged subscribers is one of the best ways to ensure you always have a way of communication with your target audience. Start growing your email list today by installing one of these free optin plugins for WordPress.

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One thought on “7 Best Free Optin Plugins for WordPress

  1. I am so confused after reading your article.

    The title says free plugins. The content displays a cost for most of them, really what made you use such a title?

    Clearly you could have use freemium in your title.

    This is the worst kind of clickbait. I hope you take my comment in a positive way.


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