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.

Gregor Capuder

ProteusThemes

Primoz Cigler

Prelc

This plugin registers a custom WordPress widget called Mailchimp by ProteusThemes. This widget will allow you to connect to your Mailchimp account with your API key and you will be able to select the list you want your visitors to subscribe to.
This widget can be used for all sorts of things, like: newsletter, lead capture, email sequence, and much more!
The Widget will output an email input field and a submit button, that’s all you need to capture your visitor’s email address. Main idea behind this plugin is that’s easy and simple to use.
Do you want to contribute?
Please refer to the official <a href="https://github.com/proteusthemes/mailchimp-widget" rel="nofollow ugc">GitHub repository</a> of this plugin.

Mailchimp Widget by ProteusThemes

There are tons of plugins with similar functionality, most of them will clutter your wp-admin with banners and upgrade notices or be very hard to use and configure. Most probably both.

This is a perfect example how the plugins should look like. Easy to use and without all the unnecessary clutter and gazillion of options. Great work!

Finally a plugin which does one thing and does it well

Capture your visitor's email address and subscribe them to your newsletter campaign with this simple Mailchimp widget plugin!

MailChimp Newsletter Widget vs Mailchimp Widget by ProteusThemes