How to Embed MailerLite Form in WordPress (Step-by-Step Guide)

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Wondering how to embed MailerLite form in WordPress without breaking your site or hiring a developer? You’re not alone. Whether you’re trying to grow your email list, promote a freebie, or just stay in touch with your readers, adding a MailerLite form to your WordPress site is one of the easiest ways to start.

But which method works best? Should you use the plugin, paste in a code block, or drop it into your sidebar?

In this guide, I’ll walk you through every method step-by-step, including how to fix common issues, track conversions, and even run A/B tests for better results. Stick around—this could be the email marketing upgrade your blog or business has been missing.

Why Embed a MailerLite Form in WordPress Matters for Growth

Adding an email form to your site gives visitors a simple way to connect with you. Done right, it can drive conversions, build trust, and even automate parts of your business.

The MailerLite + WordPress combo is especially powerful because:

• You can collect emails without third-party redirects.
• It integrates smoothly into posts, pages, or sidebars.
• It’s mobile-friendly and beginner-safe.

Generate Your MailerLite Form First Inside MailerLite

Before anything shows up on your site, you need to build the form in MailerLite itself.

Here’s how you can get it done:

Create and Customize the Form

Inside your MailerLite dashboard:

1. Go to Forms.
2. Click Create embedded form.
3. Choose Embedded form or Pop-up.
4. Add a name for your form and select the email group it connects to.

Once you’ve created it, customize the look:

• Edit fields (name, email, etc.)
• Change colors and fonts
• Add GDPR or confirmation boxes if needed

MailerLite’s form builder gives you real-time previews, which saves time and lets you see exactly how it’ll appear on your WordPress site.

Grab the Embed Code

When you’re done:

• Click Embed
• You’ll see two options: JavaScript and HTML
• Choose the HTML code for maximum flexibility (especially for Gutenberg or Custom HTML blocks)

This code will be used in WordPress, depending on the method you choose below.

Use Shortcode or HTML Block in Gutenberg (No Plugin Needed)

If you’re using the Gutenberg block editor, embedding your form takes under two minutes.

How to Add MailerLite HTML in WordPress Block Editor

Here’s what to do:

• Open the post or page you want to embed the form in
• Click the + icon to add a block
• Search for Custom HTML
• Paste the MailerLite HTML code you copied earlier
• Click Preview to check how it looks
• Save or publish your page

This method is perfect if you want full control and no added plugins. It also works well in Elementor (by using their HTML widget) or inside sidebars if your theme supports widgetized HTML areas.

Install MailerLite Official Plugin for More Control

If you’d rather use a plugin, MailerLite has an official WordPress plugin that streamlines the process.

Here’s how to use it:

Step-by-Step Plugin Setup

• Go to Plugins > Add New in WordPress
• Search for MailerLite
• Click Install Now, then Activate
• You’ll now see MailerLite in your WordPress dashboard menu

Connect MailerLite to WordPress

• In the plugin settings, paste your MailerLite API key
• You can find it inside MailerLite under Integrations > Developer API

Once connected, the plugin auto-syncs your email groups and lets you insert forms via dropdowns—no code required.

Pros and Cons of Plugin Method

Pros:

• Easier for beginners
• Auto-updates forms
• Direct access to MailerLite groups

Cons:

• Slightly slower performance than pure HTML
• Requires API connection

I usually suggest the plugin for multi-form sites or people who like drag-and-drop features.

Add MailerLite Form to Sidebar or Footer Widget

Want the form on every page? Place it in a widgetized area like the footer or sidebar.

Here’s how:

• Go to Appearance > Widgets
• Find Custom HTML or Text widget
• Paste your MailerLite HTML embed code
• Save changes

You can also use the plugin’s built-in widget if you’ve installed it. Either way, this keeps the form visible without distracting from main content.

Troubleshooting: Why Your MailerLite Form Might Not Show Up

Sometimes, you embed the form—but nothing happens. Here are common reasons:

• JavaScript conflicts: Try switching to plain HTML version.
• Cache issues: Clear your cache or use incognito mode to test.
• Theme limitations: Some themes strip or break certain scripts. Use Custom HTML block or widget instead.
• Form visibility settings in MailerLite: Check if form is set to visible or filtered by geo/IP rules.

Use Elementor or Page Builders to Embed Seamlessly

If you’re using Elementor or another builder, just drag in an HTML or code block, then paste the form code.

Elementor-specific tip:

• Use the “HTML” widget from the Basic section
• Don’t use “Shortcode” for raw HTML—it won’t work

Other popular builders like Divi, Beaver Builder, or WPBakery also allow HTML blocks.

Tracking MailerLite Forms with Analytics or Events

Want to track who submits your forms?

You can add basic event tracking in your MailerLite embed code using tools like:

• Google Tag Manager: Set up a trigger on form submission
• Facebook Pixel: Add fbq(‘track’, ‘Lead’); inside your form script
• MailerLite Reports: Check the form stats inside MailerLite directly

From what I’ve seen, even simple tracking improves opt-in strategy because you learn what pages drive signups best.

Expert Tip: A/B Test Forms to Increase Signups

Don’t just “set it and forget it.” Split test your forms to improve results.

Inside MailerLite:

• Duplicate a form
• Change headlines, button text, or design
• Use them on different posts or pages
• Compare signups in MailerLite Reports

Even small tweaks like “Get My Free Guide” vs “Join the Newsletter” can lift conversions.

Real-Life Use Case: 45% More Conversions with Inline Forms

One of my clients replaced a sidebar-only form with an inline form embedded mid-blog post. After just 30 days:

• Form impressions doubled
• Signup rate jumped from 3.2% to 4.7%
• That’s a 45% increase with no paid traffic

The difference? Better timing. Forms inside content get more attention because they appear when the reader is already engaged.

Chart: Which Embedding Method is Most Popular?

Based on usage patterns from freelancers and small business websites:

• 40% prefer Shortcode or HTML Block
• 25% use MailerLite Plugin
• 20% go with Widget areas (sidebar/footer)
• 15% use page builders like Elementor

These stats show how the majority still rely on WordPress’ built-in blocks or widgets for speed and control.

Conclusion: Best Practice for Embedding MailerLite Forms

There’s no one-size-fits-all answer, but here’s what I suggest:

• Use HTML block for blog posts or pages
• Go with widget areas for persistent forms
• Install the MailerLite plugin if you want built-in sync and dropdown selection
• Don’t forget to test and track your forms

Whatever method you choose, keep it simple, clean, and aligned with your reader’s journey.

Pro Tip: Use inline forms in high-traffic posts and always offer a strong reason to sign up—like a freebie, exclusive tip, or checklist.

Juxhin

I’m Juxhin, the voice behind The Justifiable.
I’ve spent 6+ years building blogs, managing affiliate campaigns, and testing the messy world of online business. Here, I cut the fluff and share the strategies that actually move the needle — so you can build income that’s sustainable, not speculative.

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