Create email newsletter sign-up forms in WordPress that integrate with Klaviyo. Connect WooCommerce, Elementor, and various contact form, membership, and LMS plugins to your Klaviyo account.
Your Klaviyo WordPress plugin should do two things well: connect without hassle and give you enough control to build the form experience your audience actually deserves. MailOptin does both, letting you create lead capture forms on your WordPress site that feed directly into your Klaviyo audience, contact, or email list.



The Best Klaviyo WordPress Plugin
MailOptin integrates WordPress with Klaviyo, making it easy to add new subscribers from your created optin forms. It automatically sends leads, tags, contact information, and custom data directly to Klaviyo.
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Connect Optin Forms to Klaviyo
Add a Klaviyo integration to your WordPress optin form created with MailOptin and send subscriber data to your email list with every submission.
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Custom Fields Mapping
Easily connect form fields to Klaviyo custom fields to make sure data is sent correctly for better targeting.
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Add Tags Automatically
If Klaviyo supports it, assign one or more tags to new subscribers after they submit the form.
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Select List to Join
Let your leads, contacts, or registering users select the Klaviyo audience or email list they want to subscribe to.
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Double Optin Support
If Klaviyo supports it, enable confirmation emails for each subscriber to ensure they have actively opted in.
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Content Locking
Restrict access to certain parts of your WordPress content for Klaviyo subscribers only.
You can automatically email your Klaviyo list subscribers every time you publish new posts on your WordPress website.
Want to send out daily, weekly, or even monthly email campaigns of your published content in WordPress to your Klaviyo subscribers? MailOptin has you covered.
You can also directly email your contacts and subscribers in Klaviyo directly from your WordPress website without having to log in to your Klaviyo account dashboard.

Grow Your Klaviyo Email List: Display targeted popups, slide-ins, notification bars, sidebar forms, and inline opt-ins to convert website visitors into email subscribers and customers
E-commerce Customer Engagement: Utilize WooCommerce integration to target customers with specific offers and Klaviyo signup form based on their cart contents, purchase history, or total spending, enhancing customer loyalty and driving sales
Sync Form Submissions to Your CRM: Connect Gravity Forms, Contact Form 7, WPForms, Ninja Forms, Elementor Forms, Fluent Forms, Formidable Forms, WS Form, and other form plugins to automatically send new leads to your Klaviyo account.
Automate Customer & Member Onboarding: Instantly add new WooCommerce customers, MemberPress members, Paid Memberships Pro subscribers, Ultimate Member users, GiveWP donors, and Easy Digital Downloads customers to your Klaviyo email lists for welcome emails and onboarding sequences.
Nurture Students from Your LMS: Subscribe students from LearnDash, LifterLMS, and Tutor LMS to Klaviyo and segment them based on their enrolled courses.
Send Automated New Post Notifications: Email your content to your Klaviyo contacts whenever you publish new blog posts, news articles, or custom post types in WordPress.
Create Scheduled Email Digests: Keep your email list subscribers in Klaviyo engaged by automatically sending daily, weekly, or monthly email digests featuring your latest content, products, or updates, without having to create each campaign manually.
Deliver Email Newsletters: Design and send professional newsletters and broadcasts directly from WordPress to subscribers, leads, or your audience in Klaviyo.
Klaviyo is an email and SMS marketing platform designed for ecommerce businesses to help them engage customers and drive more sales. It enables businesses to create campaigns, automate customer journeys, and segment audiences based on shopping behavior and other data.
To connect Klaviyo to WordPress, install and activate MailOptin, then connect your Klaviyo account using an API key or OAuth. Next, create an email signup form or popup in MailOptin and select Klaviyo as an integration. Once configured, new subscribers collected through your WordPress forms are automatically added to your chosen Klaviyo list.
No technical knowledge is required. The Klaviyo integration in MailOptin is designed to be user-friendly, allowing you to set up and manage your data connections with ease.
Stop letting your warmest leads slip away, and start making money with MailOptin by connecting your optin forms and WordPress website to Klaviyo.