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
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.
How It Works
Three steps to a bigger, better email list
Reader finds your content
Through search, social, or a direct link. They see your article and start reading.
Registration wall appears
After a free preview, readers enter their email to keep reading. No popup. No interruption. A natural exchange of value.
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
Registration wall conversion rate
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
Free content
Builds trust with new readers
Registration wall
Captures email from engaged readers
Newsletter nurturing
Deepens the relationship over time
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