Ninja Forms – MailChimp

The Ninja Forms Mailchimp add-on turns any form on your WordPress site into a direct pipeline to your Mailchimp audiences. Add a Mailchimp action to a form and subscriber data goes to your audience with every submission.

Map form fields to audience fields using Mailchimp's native merge tags. Assign one or more Mailchimp tags to new subscribers at submission, and place them in specific Interest Groups based on the form they completed. A Mailchimp Opt-in field lets visitors choose to subscribe without conditional logic setup, and double opt-in sends a confirmation email.

To connect, paste your Mailchimp API key into Ninja Forms settings and choose your audience. A pre-built Mailchimp Signup Form template is included.