DannyCooper

Capture is a powerful WordPress plugin designed to help you build your email list with ease. Whether you’re connecting to external Email Marketing Services (EMS) or storing subscribers locally, Capture provides a seamless solution for collecting and managing email subscriptions.
Key Features:
<ul>
<li>Dual Storage Options: Connect to your favorite Email Marketing Service or store subscribers locally in your WordPress database</li>
<li>Block Editor Support: Native WordPress block for easy form creation and customization</li>
<li>Local Subscriber Management: Built-in admin interface to view, search, and manage subscribers</li>
<li>CSV Export: Export your subscriber list for use in other tools</li>
<li>Privacy Compliant: GDPR-ready with data retention settings and unsubscribe functionality</li>
<li>Customizable Forms: Flexible form styling and layout options</li>
<li>Admin Notifications: Optional email notifications for new subscribers</li>
<li>Search & Filtering: Advanced admin tools to find and manage specific subscribers</li>
</ul>
Supported EMS Providers:
<ul>
<li>Mailerlite</li>
<li>Mailchimp</li>
<li>Kit (previously known as ConvertKit)</li>
</ul>
Perfect For:
<ul>
<li>Bloggers and content creators</li>
<li>Small businesses building email lists</li>
<li>Developers needing a flexible subscription solution</li>
<li>Anyone wanting control over their subscriber data</li>
</ul>
How It Works:
<ol>
<li>With EMS Connected: Subscribers are automatically sent to your configured email marketing service</li>
<li>Without EMS: Subscribers are stored securely in your WordPress database with full admin management tools</li>
<li>Always Functional: Forms work regardless of your EMS connection status</li>
</ol>
<h3>External services</h3>
This plugin connects to third-party Email Marketing Service (EMS) APIs to synchronize subscriber data when an EMS integration is configured. The plugin only connects to these services when users explicitly configure their API credentials in the plugin settings.
When an EMS connection is configured, the plugin sends subscriber information (email address and optional first name) to the selected email marketing service each time a user submits a subscription form.
Supported External Services:
<ul>
<li>
ConvertKit (Kit): https://api.convertkit.com/v3/
<ul>
<li>Used for: Validating API credentials, retrieving available forms/lists, and subscribing users</li>
<li>Data sent: Email address, first name (optional), custom fields, and tags</li>
<li>Privacy policy: https://convertkit.com/privacy</li>
<li>Terms of service: https://convertkit.com/terms</li>
</ul>
</li>
<li>
Mailchimp: https://{dc}.api.mailchimp.com/3.0/
<ul>
<li>Used for: Validating API credentials, retrieving available lists, and subscribing users</li>
<li>Data sent: Email address and first name (optional)</li>
<li>Privacy policy: https://www.intuit.com/privacy/statement/</li>
<li>Terms of service: https://www.intuit.com/legal/</li>
</ul>
</li>
<li>
MailerLite: https://connect.mailerlite.com/api
<ul>
<li>Used for: Validating API credentials, retrieving available groups/lists, and subscribing users</li>
<li>Data sent: Email address and first name (optional)</li>
<li>Privacy policy: https://www.mailerlite.com/legal/privacy-policy</li>
<li>Terms of service: https://www.mailerlite.com/legal/terms-of-use</li>
</ul>
</li>
</ul>
Important Notes:
<ul>
<li>No data is sent to external services unless users explicitly configure an EMS connection</li>
<li>When no EMS is configured, all subscriber data remains stored locally in your WordPress database</li>
<li>Users can disable EMS integration at any time, reverting to local-only storage</li>
<li>The plugin respects user privacy and only transmits data necessary for email marketing functionality</li>
</ul>
<h3>Developer Notes</h3>
Hooks & Filters:
The plugin provides various hooks and filters for developers to extend functionality:
<ul>
<li><code>capture_before_subscribe</code> – Action fired before processing subscription</li>
<li><code>capture_after_subscribe</code> – Action fired after successful subscription</li>
<li><code>capture_form_fields</code> – Filter to modify form fields</li>
<li><code>capture_success_message</code> – Filter to customize success messages</li>
</ul>
Database:
The plugin creates a <code>capture_subscribers</code> table to store local subscriptions with proper indexing for performance.
Source Code:
To view the unminified source code, visit the <a href="https://github.com/dannycooper/capture" rel="nofollow ugc">GitHub repository</a>.

Capture

A WordPress plugin for capturing email subscriptions with EMS integration and local storage options.

postduif

This WordPress plugin integrates listmonk with your WordPress / WooCommerce website.
You can use this plugin to:
<ul>
<li>Let people subscribe to your newsletter through a form on your website using WPForms or Contact Form 7.</li>
<li>Allow people to subscribe to your newsletter from the WooCommerce checkout page. After a customer pays, their email address and name will be sent to the listmonk mailing list of your choice.</li>
</ul>
Using listmonk as an open-source newsletter and mailing tool makes you less dependent on services like Mailchimp, costs less, and has no limits on the amount of emails you can send per month.
<h3>How to use this plugin</h3>
<ol>
<li>Install this plugin through the WordPress plugin directory.</li>
<li>Ensure you have access to a configured listmonk server. You can connect listmonk to email services like Amazon SES, which costs as little as $0.10 per thousand emails.</li>
<li>Access the plugin’s settings page from your WordPress admin dashboard under Settings to enable and disable components and enter listmonk credentials.</li>
<li>Determine the listmonk list ID you want to subscribe people to. See listmonk documentation for more details.</li>
<li>Utilize WPForms, Contact Form 7, or a custom field on the WooCommerce checkout page to send subscriber data to listmonk.</li>
<li>When using a custom field on the WooCommerce checkout page, you can input a text customers will see during checkout.</li>
</ol>
<h3>Requirements</h3>
<ul>
<li>WordPress website (latest version recommended);</li>
<li>Accessible listmonk server over HTTPS (tested up to listmonk v3.0.0);</li>
<li>WPForms or Contact Form 7 for form-based subscriptions;</li>
<li>WooCommerce for checkout-based subscriptions; (classic checkout supported, block-based checkout experimentally supported).</li>
</ul>
<h3>Privacy and Security</h3>
For compliance purposes, this plugin records the IP address each subscriber and sends it to your listmonk server. Subscribers through WooCommerce checkout do not require double opt-in, unlike form-based subscriptions. API credentials are stored securely on your server with encryption for the password. Please note that this plugin does not have any form of rate-limiting, so it is your own responsibilty to use a CATCHPA when using i.e. WPForms, to limit the amount of fake subscriptions that could be sent to your listmonk server.
<h3>Suggestions, Bugs, and Contributions</h3>
For bugs or suggestions, please create an issue on GitHub. Contributions, especially from those knowledgeable in PHP and the listmonk API, are welcome.
<h3>License</h3>
GNU General Public License v3.0. No commercial closed-source usage allowed.
<h3>Thanks</h3>
Huge thanks to Kailash Nadh for creating listmonk!
<h3>Dependency on external services</h3>
This plugin uses two external services: (1) a listmonk server of your choice, for which you are solely responsible and (2) a link to <a href="buymeacoffee.com" rel="nofollow ugc">Buy me a Coffee</a> to voluntarily support the development of this plugin. See their privacy policy <a href="https://www.buymeacoffee.com/privacy-policy" rel="nofollow ugc">here</a>. This plugin can be used without donating. This plugin does not store or use any customer data: this is all being handled by the listmonk server you connect to.

Integration for listmonk mailing list and newsletter service

Integrates the open-source mailing list tool listmonk with WordPress/WooCommerce so users can subscribe to your mailing list.

Capture vs Integration for listmonk mailing list and newsletter service