Free WordPress Plugin

Grow your email list 5× faster than popups.

List Builder replaces low-converting newsletter popups with a registration wall that turns readers into engaged subscribers. Free for WordPress. No credit card.

Powered by Leaky Paywall, the subscription platform trusted by 800+ publishers

Powered by Leaky Paywall
WordPress Native
Free Forever
No Credit Card

The Problem With Popups

Newsletter popups convert at 3%.
97% of your readers ignore them.

Popups interrupt before readers see your content. They collect emails from people who aren’t engaged. Those emails don’t convert. There’s a better way.

PopupsList Builder
Conversion rate~3%15–20%
Reader engagementLowHigh
Email qualityPassiveCommitted
Blocks AI scrapers
Path to paid subsBuilt-in
Annoys readersAlwaysNever

How It Works

Three steps to a bigger, better email list

1

Reader finds your content

Through search, social, or a direct link. They see your article and start reading.

2

Registration wall appears

After a free preview, readers enter their email to keep reading. No popup. No interruption. A natural exchange of value.

3

You own the relationship

Every registered reader goes straight to your email list. Nurture them with newsletters. Convert them when they’re ready.

Faster list growth than popups

15–20%

Registration wall conversion rate

800+

Publishers trust Leaky Paywall

Features

Everything you need to grow your list

List Builder comes loaded with features that newsletter popups can’t match.

📧

Registration Wall

Replace popups with a content-driven registration wall. Readers give their email to keep reading — a fair exchange that builds higher-quality lists.

🤖

AI Scraper Protection

Block AI bots from crawling your content for free. Protect your intellectual property while growing your email list at the same time.

📊

Metered Content

Control how many free articles readers see before the registration wall. Fine-tune your meter to balance discovery with list growth.

One-Click WordPress Install

Install from the WordPress plugin repo and activate. Works with any theme, any host, and your existing caching setup.

🔗

Export to Your Email Service

Export all new registered subscribers and import them into Mailchimp, Kit, ActiveCampaign, or any email platform. Upgrade to a paid plan for automatic ESP syncing.

🎨

Customizable Messaging

Control the registration wall copy, design, and placement. Match your brand. Speak in your voice. No generic popup templates.

💳

Stripe Connect Built In

When you’re ready to test paid subscriptions, Stripe is already wired up. Flip the switch — no upgrade required. Just a 10% revenue share on new paid subscribers.

The Insight

Popups collect emails.
Registration walls build relationships.

When a reader registers to access your content, they’re making a commitment. They want what you’ve written. That intent means higher open rates, more engagement, and more paid subscribers down the road.

A popup email is a maybe.
A registration is a yes.

The Publisher Flywheel

1

Free content

Builds trust with new readers

2

Registration wall

Captures email from engaged readers

3

Newsletter nurturing

Deepens the relationship over time

4

Paid conversion

Warm audience converts 3–5× better

Pricing

OK, what’s the catch?

There isn’t one. List Builder is free. Build your email list forever at no cost.

🤝

If you decide to turn on paid subscriptions, we charge a 10% revenue share on new paid subscribers only. Not on your existing subscribers. Not on your email list. Only on new revenue we help you generate.

No credit card to start. No setup fees. No commitment.

When You’re Ready

Paid subscriptions are already built in.
No upgrade required.

List Builder includes Stripe Connect, so you can test paid subscriptions whenever you’re ready. Same plugin — no migration, no new tool, no friction.

📧

Build your list

Free forever

💰

Test paid subs

When you’re ready

🚀

Scale revenue

Upgrade for support

Get Started

Set up List Builder in minutes

Stop losing readers to popups.
Start building relationships.

Download the free plugin. Set up in minutes. Start growing your email list with readers who actually want to hear from you.

Free forever · No credit card · Powered by Leaky Paywall