Matthew Poer

I wrote this plug-in mostly as an attempt to learn more about creating WordPress Plug-ins, but I think it is potentially useful for certain folks and so I am releasing it as an open-source, unsupported piece of software. I hope you enjoy it.
The goal of the plug-in is to help a WordPress Site Administrator integrate a MailChimp mailing list into the WordPress site. Once the plug-in is installed, you must provide a MailChimp.com APIKey, then select a list to enroll your visitors to.
The default widget is practical, but not very pretty. Basically, it includes a typical widget layout containing three input fields, one hidden field to track the page URL, and a submit button. The HTML for the widget can be customized to fit your site and WordPress theme. If you choose to do this, please don’t try to change the input fields’ NAME or ID attributes. It won’t work if you change these.

MailChimp Newsletter Widget

The goal of the plug-in is to help a WordPress Site Administrator integrate a MailChimp mailing list into the WordPress site.

Email Subscription Popup is the easiest way to grow your email list in WordPress. Show a beautiful newsletter signup popup, embed a subscription form anywhere with the Gutenberg block or widget, and automatically sync new subscribers to Mailchimp — all for free.
<blockquote>
Want more? <a href="https://i13websolution.com/product/wordpress-newsletter-subscription-pro-plugin/" rel="nofollow ugc">Email Subscribe PRO</a> adds 6 stunning popup styles, ESP integrations (Mailchimp, Brevo, Kit, Klaviyo), full analytics dashboard, exit-intent trigger, unlimited subscribers and more.
</blockquote>
<h4>Why use Email Subscription Popup?</h4>
<ul>
<li>Zero setup — install, activate, done. Popup works immediately.</li>
<li>Gutenberg block — drag and drop the subscription form anywhere in your pages, posts or templates.</li>
<li>Mailchimp sync — automatically sync new subscribers to your Mailchimp audience (free: 100 syncs/month).</li>
<li>GDPR ready — optional consent checkbox with customizable text and links.</li>
<li>Fully translatable — all labels and messages are customizable.</li>
<li>Lightweight — no bloat, fast loading.</li>
</ul>
<h4>Free Features</h4>
<ul>
<li>📧 Newsletter popup modal with customizable heading, subheading and button text</li>
<li>🧩 Gutenberg block — add subscription form to any page or post</li>
<li>🔌 Mailchimp integration — sync new subscribers automatically (100/month free)</li>
<li>🔒 GDPR compliance — optional agreement checkbox with custom text</li>
<li>📊 Basic analytics — subscriber count and growth overview</li>
<li>👥 Manage subscribers — view, search, delete, export</li>
<li>📨 Send mass email to all subscribers</li>
<li>🔇 Unsubscriber list management</li>
<li>🎨 Show/hide name field</li>
<li>⚙️ Flexible display — show on homepage only or all pages</li>
<li>🍪 Cookie control — set how long to wait before showing popup again</li>
<li>📱 Responsive design — works on all screen sizes</li>
<li>🌍 Translation ready (WPML compatible)</li>
<li>🔗 Custom link trigger — open popup on any button/link click</li>
<li>📦 WordPress widget support</li>
<li>🔐 WordPress user capabilities and roles support</li>
</ul>
<h4>PRO Version Features</h4>
Upgrade to <a href="https://i13websolution.com/product/wordpress-newsletter-subscription-pro-plugin/" rel="nofollow ugc">Email Subscribe PRO</a> for:
<ul>
<li>🎨 9 popup styles — Dark/Night, Minimal, Bold/Vibrant, Split Layout with image, Coupon Reveal, Slide-in Bar + 3 classic styles</li>
<li>📧 4 ESP integrations — Mailchimp, Brevo, Kit (ConvertKit), Klaviyo — unlimited syncs, double opt-in</li>
<li>📊 Full analytics dashboard — subscriber growth charts, date range picker, best day tracker, unsubscribe rate</li>
<li>🚀 Exit-intent trigger — show popup when visitor is about to leave</li>
<li>♾️ Unlimited subscribers — no monthly limits</li>
<li>📥 Unlimited CSV import — import thousands of subscribers at once</li>
<li>🎟️ Coupon reveal popup — show discount code after subscription</li>
<li>🖼️ Split layout popup — image on left, form on right with color bar</li>
<li>📢 Slide-in notification bar — bottom or top bar, less intrusive than a popup</li>
<li>📋 Newsletter templates — create reusable email templates</li>
<li>⏰ Cron-based mass email — send newsletters via WordPress cron</li>
<li>🔔 Admin notifications — get notified when someone subscribes</li>
<li>✅ Activation email — verify subscribers via email confirmation</li>
<li>🔍 Advanced subscriber search — filter by status, date, name</li>
<li>🗑️ Mass delete — bulk remove subscribers</li>
</ul>
<a href="https://i13websolution.com/product/wordpress-newsletter-subscription-pro-plugin/" rel="nofollow ugc">Get PRO →</a>
<h4>How to use the Gutenberg Block</h4>
<ol>
<li>Edit any page or post in the block editor</li>
<li>Click the + button to add a block</li>
<li>Search for “Email Subscribe”</li>
<li>Add the block — the subscription form appears instantly</li>
<li>Customize heading, labels, messages and GDPR checkbox in the block sidebar</li>
</ol>
<h4>Mailchimp Setup</h4>
<ol>
<li>Go to Email Subscription → Mailchimp Sync</li>
<li>Enter your Mailchimp API key and Audience List ID</li>
<li>Click Test Connection to verify</li>
<li>Enable sync — new subscribers will be automatically added to your Mailchimp audience</li>
</ol>
<h4>Shortcode</h4>
You can also embed the form using a shortcode:
<pre><code>[print_email_subscribe_form]
</code></pre>
With custom parameters: 
 [print_email_subscribe_form heading=”Join our newsletter” shownamefield=”1″ show_agreement=”1″]

Email Subscription Popup — Newsletter & GDPR Consent

Popup working good

Grow your email list with a beautiful newsletter popup, Gutenberg block, widget and Mailchimp sync. GDPR ready. Free forever.

MailChimp Newsletter Widget vs Email Subscription Popup — Newsletter & GDPR Consent