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.

jp2112

This plugin adds an email subscription form anywhere on your WordPress website for your Feedburner RSS feed. Add it to the end of posts to increase your subscriber count. This plugin is an implementation of the FeedBurner Optin form found <a href="http://www.wpsquare.com/add-feedburner-optin-form-wordpress-blog/" rel="nofollow ugc">here</a>.
There are two different formats: a ‘main’ format for most applications, and a ‘sidebar’ format for putting the form into your sidebar or smaller areas.
Disclaimer: This plugin is not affiliated with or endorsed by Feedburner.
<h3>If you need help with this plugin</h3>
If this plugin breaks your site or just flat out does not work, please go to <a href="https://wordpress.org/plugins/feedburner-optin-form/#compatibility" rel="ugc">Compatibility</a> and click “Broken” after verifying your WordPress version and the version of the plugin you are using.
Then, create a thread in the <a href="https://wordpress.org/support/plugin/feedburner-optin-form" rel="ugc">Support</a> forum with a description of the issue. Make sure you are using the latest version of WordPress and the plugin before reporting issues, to be sure that the issue is with the current version and not with an older version where the issue may have already been fixed.
Please do not use the <a href="https://wordpress.org/support/view/plugin-reviews/feedburner-optin-form" rel="ugc">Reviews</a> section to report issues or request new features.
<h4>Features</h4>
<ul>
<li>Display on any post or page</li>
<li>Completely self contained, includes CSS from blog post</li>
<li>CSS is only included on posts or pages where form is displayed</li>
<li>Automatically insert at the end of single posts</li>
<li>CSS and JS files automatically bust caches</li>
<li>Responsive CSS for mobile devices</li>
</ul>
<h4>Shortcode</h4>
To display the form on any post or page, use this shortcode:
[fb-optin-form]
Make sure you go to the plugin settings page after installing to set options. You may also pass the Feedburner userid through the shortcode.
If you use and enjoy this plugin, please rate it and click the “Works” button below so others know that it works with the latest version of WordPress.
Spanish translation courtesy of Andrew Kurtis @ <a href="http://www.webhostinghub.com/" rel="nofollow ugc">WebHostingHub</a>

Feedburner Optin Form

Display a Feedburner email subscription form on your posts or pages.

Capture vs Feedburner Optin Form