How do I add a signup form if I have a WordPress.com site?

WordPress.com compatibility is limited to Business tier users only. You can learn how to add a signup form if you have a WordPress.com site by visiting the link: [How to add a signup form if you have a WordPress.com site](https://mailchimp.com/help/ways-to-add-a-signup-form-in-wordpress/)

What do I need to do when upgrading to version 1.2.1 of the plugin?

If you are upgrading to version 1.2.1 and you used the widget in your sidebar previously, all you need to do is drag the MailChimp Widget back into the sidebar, visit the MailChimp settings page (which will have maintained your prior settings), click the “Update List” button, and you’re done!

Which languages are supported for the plugin?

The plugin is currently configured to be easily translated and supports the following languages: Bulgarian in Bulgaria, Czech in the Czech Republic, Danish in Denmark, German in Germany, Modern Greek in Greece, English in the U.S., Spanish in Chile, Spanish in Spain, Estonian in Estonia, French in France, Hebrew in Israel, Hungarian in Hungary, Italian in Italy, Korean, Norwegian, Dutch, Portuguese in Brazil, Portuguese in Portugal, Romanian in Romania, Russian in the Russian Federation, Swedish in Sweden, and Turkish in Turkey.

How can I contribute a translation for a language that is not listed above?

If your language is not listed above, feel free to create a translation. You can follow these basic steps: Copy “mailchimp_i18n-en_US.po” to “mailchimp_i18n-LANG_COUNTRY.po” – fill in LANG and COUNTRY with whatever you use for WPLANG in wp-config.php. Grab a translation editor such as POedit. Translate each line – if you need some context, just open up mailchimp.php and search for the line number or text. Fork the repository on github. Clone the develop branch. Add the appropriately named files to the /po/ directory and edit the /readme.txt to include how you’d like to be attributed. Make a pull request.

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MailChimp List Subscribe Form

Use the MailChimp List Subscribe plugin to quickly add a MailChimp signup form widget to your WordPress 2.8 or higher site.

Rating:

2.6

Active Installations:

60000+

Last Updated:

Jan 31, 2025

WordPress Version:

6.3 or higher

Tested up to:

6.7.2

Features Download’s trend Changelog Reviews

Easy Mailchimp Signup

Quickly add a Mailchimp signup form to your WordPress site.

Description: Use the Mailchimp List Subscribe plugin to easily integrate a signup form into your WordPress site. No technical skills required.

Place the form anywhere on your site for maximum customization and flexibility.

Seamless integration with MailChimp

Connect your MailChimp list to your WordPress site effortlessly using the MailChimp List Subscribe plugin. Simply log in with your API key, select your MailChimp list, choose merge fields and groups, and add the widget to your site.

Secure Access Token

Encrypt your Mailchimp access token for enhanced security.

Author’s Site

1.6.3 – 2025-01-30

Added: Transform the mailchimp_sf_shortcode shortcode to the Mailchimp List Subscribe Form block (props @MaxwellGarceau, @jeffpaul, @dkotter, @qasumitbagthariya via #84).
Removed: Deprecated Sopresto code (props @MaxwellGarceau, @jeffpaul, @dkotter via #98).
Fixed: Fatal PHP error that would occur when the phone merge field was set to US format, but the merge field was not included in the Mailchimp plugin (props @MaxwellGarceau, @jeffpaul, @dkotter, @qasumitbagthariya via #108).
Fixed: Bug causing merge fields on the Mailchimp WP admin page to incorrectly display as not required when they were, in fact, required (props @MaxwellGarceau, @jeffpaul, @dkotter, @qasumitbagthariya via #109).
Fixed: Fix an issue that allows a user to select merge fields that were not selected as visible in the Mailchimp account (props @MaxwellGarceau, @jeffpaul, @dkotter, @qasumitbagthariya via #110).
Fixed: Bug causing all new subscribers to receive a double opt-in email (props Nathan Tetzlaff, @MaxwellGarceau, @jeffpaul, @dkotter, @qasumitbagthariya via #115).
Fixed: Bug causing contacts with any Mailchimp status (subscribed, unsubscribed, pending, etc.) to be able to submit the sign-up form even if “Update Existing Subscriber?” was disabled (props @MaxwellGarceau, @jeffpaul, @dkotter, @qasumitbagthariya via #115).
Fixed: Pending contacts will now still be required to confirm their original confirmation email if they try to update their contact while “Update Existing Subscribers?” and “Double Opt-in” are both enabled (props @MaxwellGarceau, @jeffpaul, @dkotter, @qasumitbagthariya via #115).
Security: Bump nanoid from 3.3.7 to 3.3.8 (props @dependabot, @iamdharmesh via #111).

1.6.2 – 2024-11-12

Note that this release bumps the WordPress minimum version from 6.1 to 6.3.

Changed: Bump WordPress “tested up to” version 6.7 (props @qasumitbagthariya, @vikrampm1, @dkotter via #71).
Changed: Bump WordPress minimum supported version from 6.1 to 6.3 (props @qasumitbagthariya, @vikrampm1, @dkotter via #71).
Fixed: Ensure the field name is properly added to the error message when the email address is blank (props @iamdharmesh, @jerclarke, @dkotter via #74).

1.6.1 – 2024-10-14

Changed: Improved migration flow from API Key to OAuth authentication for a better user experience (props @iamdharmesh, @jeffpaul, @dkotter, @qasumitbagthariya via #67).
Changed: Updated the menu SVG icon (props @dkotter, @jeffpaul via #65).
Fixed: Ensure that the settings remain persistent between logging out of the account and logging in again (props @iamdharmesh, @jeffpaul, @dkotter, @qasumitbagthariya via #66).
Security: Bump serve-static from 1.15.0 to 1.16.2 and express from 4.19.2 to 4.21.0 (props @dependabot, @dkotter via #55).
Security: Bump webpack from 5.91.0 to 5.94.0 (props @dependabot, @dkotter via #59).

1.6.0 – 2024-09-24

Note this version increased the WordPress minimum version to 6.1 and the PHP minimum version to 7.0.

Added: Mailchimp List Subscribe Form custom block (props @nateconley, @dkotter, @jeffpaul via #35, #38).
Added: PHP 8.3 compatibility and minimum PHP version of 7.0 (props @nateconley, @jeffpaul, @dkotter via #26).
Added: WordPress 6.5 compatibility (props @nateconley, @dkotter, @jeffpaul via #27).
Added: OAuth authentication for connecting a Mailchimp account with WordPress (props @iamdharmesh, @dkotter, @jeffpaul via #47, #48, #50, #52).
Added: New user signup flow, allowing users to sign up for a Mailchimp account from within the plugin (props @iamdharmesh, @dkotter, @jeffpaul via #51).
Added: Created a LICENSE.md file and sets the license in the plugin to GPL-2.0-or-later (props @jeffpaul, @dkotter via #14).
Added: Plugin icon and banner assets (props @eddieshrake, @jeffpaul, @dkotter via #28).
Changed: Bump WordPress “tested up to” version 6.6 (props @qasumitbagthariya, @vikrampm1, @jeffpaul via #43).
Changed: Ensure the signup form is only visible when a list is selected in the settings (props @iamdharmesh, @dkotter, @qasumitbagthariya via #54).
Changed: Moved settings page and link to top-level WP Admin menu item (props @nateconley, @dkotter, @jeffpaul via #29, #33).
Changed: Admin styles to match updated Mailchimp brand guidelines (props @nateconley, @dkotter, @jeffpaul, @eddieshrake via #31).
Changed: Replaced references of MailChimp to Mailchimp except where those references are explicitly functional code (to limit the additional class/function updates needed) (props @jeffpaul, @dkotter via #14).
Changed: Updated readme.txt and mailchimp.php header values to the WP.org standards (props @jeffpaul, @dkotter via #14).
Changed: Moved screenshots into a new .wordpress-org directory (props @jeffpaul, @dkotter via #14).
Changed: Moved translations to GlotPress (props @nateconley, @dkotter, @jeffpaul via #39).
Deprecated: Function mailchimpSF_signup_form deprecated in favor of mailchimp_sf_signup_form (props @nateconley, @dkotter via #24).
Deprecated: jQuery scrollTo (props @nateconley, @dkotter, @jeffpaul via #27).
Removed: Support for WordPress < 6.1.1 (props @nateconley, @dkotter, @jeffpaul via #27).
Removed: Polyfills for WordPress < 2.8.0 (props @nateconley, @dkotter, @jeffpaul via #27).
Removed: Monkey Rewards integration (props @nateconley, @dkotter, @jeffpaul via #30).
Removed: IE-specific admin stylesheet (props @nateconley, @dkotter, @jeffpaul, @eddieshrake via #31).
Fixed: Formatting from linting checks (props @nateconley, @dkotter via #23).
Fixed: Datepicker display on frontend (props @nateconley, @dkotter, @jeffpaul via #25).
Fixed: Accessibility for admin settings page (props @nateconley, @dkotter, @jeffpaul, @eddieshrake via #31).
Fixed: Properly handle the scenario where a non-valid list is updated (props @dkotter, @qasumitbagthariya, @nateconley, @vikrampm1 via #40).
Fixed: Ensure the custom block and shortcode both have consistent spacing (props @dkotter, @qasumitbagthariya, @nateconley, @vikrampm1 via #41).
Fixed: Address some PHP warnings when a form submission happens (props @iamdharmesh, @dkotter, @qasumitbagthariya via #54).

1.5.8 – 2022-09-26

Changed: Updated readme.txt link.
**Fixed:* PHP warning for merge tags.
Fixed: Double slashes on resources being loaded.

View historical changelog details here.

Abysmal implementation

By 15kstudios on February 6, 2025

The plugin is a complete joke and injects js that is abysmal.

Why has this been abandoned?

By LordLiverpool on September 5, 2023

Why has this plugin been abandoned?

A company of MailChimp's size can easily afford to maintain this WordPress plugin.

Either support the plugin or delete it.

Zero Functionality

By mysticza on July 22, 2023

Doesn't display anything in a sidebar, no instructions, screenshots look like they're from 2010 [as @ 22/07/2023].

Almost worthless.

By wyverndryke on January 15, 2023

This plugin does not help you incorporate MailChimp into your WordPress site, at all.

Needs an update BADLY! It's not compatible with PHP 8+

By ericksonstudio on June 14, 2022

If you have PHP version 8.0 or above on your website, you will receive the following message ONLY if you have the Javascript option OFF in the MailChimp plugin settings — if you don't have the Javascript option on, the form won't work and you won't receiving any error messages indicating why:

Warning: Undefined array key "phone_format" in .../wp-content/plugins/mailchimp/mailchimp.php on line 861

Downgrade to PHP 7.4+ if possible and it will work again. In the meantime, MailChimp really needs to up their game since WordPress+MailChimp integration is important to many, otherwise you'll telling us to move to Constant Contact, et cetera.

Very unstable, not working properly

By leotuorto on May 4, 2018

Upon installed it locked my admin and had to uninstall it by deleting plug-in files using my server file manager

Only one form supported! No way!

By Oleg (Oleg.applaud) on February 18, 2018

Does not support multiple forms. Only one mailchimp list can be connected.

Not recommended unlike Mailchimp

By danba on August 11, 2017

I rarely give bad reviews but on this plugin I was disappointed. Mailchimp is an awesome services and yet they did not maintain, fix and improve this plugin. Now if they release a new version, which should include bug fixes and maybe some simple page level Targeting of widget, I would happily test again and revise my review.

Works great, just a tiny detail that annoys me...

By gotwickdotcom on June 7, 2017

Using Twenty Seventeen theme, when I add this widget to a page, it has a dot, like a bullet point, at the top of the form. I tried and tried to remove it, but no luck. No other widget does it that I have found. Any suggestions?