Newsletter Signup · WordPress

Newsletter Signup for WordPress

Email-only newsletter capture — perfect for footers and landing pages. Free for 500 submissions total — no backend, no SDK, no plugin.

Get free access key How it works

500 free total
1 fields ready
60-second setup

Overview

Adding a newsletter signup to WordPress usually means another plugin — Mailchimp for WordPress (MC4WP), Newsletter, or similar — to install, keep updated, and hope it doesn't clash with your theme or your other plugins. SplitForms skips all of that: it's the form backend, so you paste a plain HTML signup form into a Gutenberg Custom HTML block, a sidebar or footer widget, or a theme template, add one hidden access_key input, and every email posts to https://splitforms.com/api/submit and lands in your SplitForms dashboard. There's no plugin to activate, no PHP, and no new WordPress database table — and because it's just markup, it survives WordPress core and theme updates.

Copy-paste code

Drop into any WordPress project.

Replace YOUR_ACCESS_KEY with your splitforms key, paste into a WordPress page, and ship. No build-time integration required.

Get free access key

submit.php

<?php
// Drop into a PHP page. Receives a form POST and proxies it to splitforms.com.
// Useful when you want to add server-side validation or rate limiting.

if ($_SERVER['REQUEST_METHOD'] === 'POST') {
    // sf_sid: passing it on lets partial leads close once the visitor
    // submits. It only exists if the page with your form also has
    //   <form data-sf-key="YOUR_ACCESS_KEY" ...>   (this proxy adds access_key, so the form has none)
    //   <script src="https://splitforms.com/embed.js" async></script>
    // — embed.js then adds the hidden sf_sid input. Harmless without it.
    $allowed = ['email', 'sf_sid'];
    $payload = ['access_key' => 'YOUR_ACCESS_KEY'];
    $payload['subject'] = 'New newsletter subscriber';

    foreach ($allowed as $f) {
        if (isset($_POST[$f])) $payload[$f] = $_POST[$f];
    }

    $ch = curl_init('https://splitforms.com/api/submit');
    curl_setopt($ch, CURLOPT_POST, true);
    curl_setopt($ch, CURLOPT_POSTFIELDS, http_build_query($payload));
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
    curl_setopt($ch, CURLOPT_HTTPHEADER, ['Accept: application/json']);
    $response = curl_exec($ch);
    $status   = curl_getinfo($ch, CURLINFO_HTTP_CODE);
    curl_close($ch);

    header('Content-Type: application/json');
    http_response_code($status);
    echo $response;
    exit;
}
?>

WordPress + Newsletter Signup

Built for WordPress developers who hate operating a backend.

WordPress contact form plugins (Contact Form 7, WPForms, Fluent Forms) work but add database bloat, update fatigue, and a monthly subscription for features like webhook delivery or advanced spam controls. The newsletter signup on this page drops into a Custom HTML block — no PHP, no plugin activation, no settings page to configure. Every field POSTs to splitforms as standard form data, so your WordPress admin stays clean. You keep using WordPress for content management and page building while splitforms handles the form pipeline.

500 form submissions total, free to start
Unlimited forms on every plan, including Free
Spam protection — honeypot plus a rule-based filter

splitforms as the form backend for WordPress

Newsletter Signup fields

What every field actually does.

The posted payload contains your email. Required fields are your email. Rename, remove, or add your own — splitforms accepts any name you POST.

Your email — Reply-to address — splitforms wires this so hitting reply goes back to the sender.

Template playbook

The reason this newsletter signup exists.

Newsletter conversion benchmarks haven't moved much: ConvertKit / Substack landing pages convert at 1-2% of visitors, popup forms at 2-4%, content-upgrade lead magnets at 8-15%. The form itself is trivially simple (email field, optional name) but where it lives matters — exit-intent popup, scroll-triggered slide-in, footer inline, content-end inline all behave differently. Push the submission to your ESP (Mailchimp / ConvertKit / Substack / Beehiiv / Buttondown) via webhook so the welcome email fires automatically. GDPR / CASL require explicit consent — a checkbox or unbundled-consent text under the form covers it for EU and Canadian visitors.

Pick the form placement
Push to your ESP
Add GDPR / CASL consent

Setup

Generate, embed, receive.

Three actions stand between you and your first newsletter signup submission — no backend, no database, no CAPTCHA library.

Generate a free splitforms key

Paste the newsletter signup into your WordPress project

Drop the form snippet into a WordPress page, component, or layout. Replace YOUR_ACCESS_KEY with the key from your dashboard. The form action is a hard-coded URL — no env vars or build-time wiring needed.

Receive submissions

Dashboard updates live on Free. Free includes owner email delivery; paid plans add signed webhooks, CSV export, Slack/Discord forwarding, and BCC to your team.

Create your form Read the docs

How SplitForms works

What happens after someone submits your form?

splitforms receives the submission, filters spam, saves it to your dashboard and emails you — then, on paid plans, sends it on to your webhooks and integrations. No backend infrastructure to build.

A SplitForms contact form submission launching straight to your inbox

Add your endpoint

Point your form to your unique SplitForms endpoint. That's it.

HTML form pointing at a SplitForms submit endpoint

Receive submissions

We instantly capture and organize every submission in your inbox.

Submissions inbox with searchable leads and status pills

Route anywhere

Send data to email, spreadsheets, CRMs, webhooks, and 7,000+ apps.

Generic integration tiles for email, sheets, chat, CRM, automate, and webhook

Start Free Read the Docs

No credit card required. Set up in under 60 seconds.

Connect & automate

Where can submissions go besides email?

On paid plans, submissions can also go to Slack, Discord, Google Sheets, Notion, Airtable, Zapier or any signed webhook — and splitforms works on the platforms you build on, from WordPress and Shopify to Next.js. With Stripe connected, your forms can take payments too.

NewTake payments on your formsDeposits, bookings, order forms — submitters check out through Stripe and the money goes straight to your Stripe account. Included on every paid plan.See plans →

View all integrations →

Setup guides for the stacks you use

HTMLReactNext.jsAstroWebflowWordPress

Common questions

Newsletter Signup on WordPress — answered.

View all FAQs

Do I still need Mailchimp for WordPress (MC4WP), the Newsletter plugin, or similar to collect signups?

No. SplitForms is the form backend, so a plain HTML <form> with your hidden access_key is all it takes — paste it into a Custom HTML block and emails land in your dashboard. Nothing to install, activate, or update in wp-admin, and no signup plugin left to break when your theme or WordPress updates.

Where do I put the form — a block, a widget, or a theme file?

Any of the three, and the same HTML works everywhere. Use a Gutenberg Custom HTML block inside a post or page, a Custom HTML widget in a sidebar or footer for a site-wide signup, or paste it into a theme template like footer.php if you want it hardcoded. You never open functions.php or write a line of PHP.

Will a WordPress core update, theme switch, or plugin conflict break the signup form?

No. It's static markup posting to an external endpoint, not a plugin hooking into WordPress, so there's no code for a core update, a deactivated plugin, or a theme change to break. Switch themes and you just re-paste the same HTML into the new theme's Custom HTML widget.

How do subscribers get from my SplitForms dashboard into Mailchimp or ConvertKit?

Export the whole subscriber list to CSV and import it into any ESP, or — on paid plans — point a webhook at Zapier so each new signup is pushed as signed JSON and added to your list in real time. The auto-responder (paid plans) can also fire a welcome email the moment someone subscribes.

Does this newsletter signup work on WordPress?

Yes. The form is plain HTML with a single POST endpoint, so it runs on any WordPress site without server-side code, plugins, or SDKs. Drop the snippet into a WordPress page or component and submissions land in your splitforms dashboard.

How much does the newsletter signup cost on WordPress?

Free for 500 submissions — no credit card, no time limit. Pro is $5/mo for 5,000 submissions a month, and Annual is $49/year for 15,000 submissions a month. The same pricing applies regardless of which framework hosts the form.

Can I customize the fields?

Yes. The template ships with sensible defaults (your email…) — add, remove, or rename any of them. Splitforms accepts whatever fields you POST.

Simple pricing

How much does splitforms cost?

Free gives you 500 submissions for $0 — no card, no time limit. Pro is $5/month for 5,000 submissions a month, and Annual is $49/year for 15,000 a month with every Pro feature.

Free

$0— 500 submissions

No card, no time limit

Best for testing

For side projects and indie devs.

500 free submissions
Unlimited forms
Email notifications included
Smart spam filtering
Submissions dashboard
Redirect after submit
MCP server included

Get Started

Recommended

Pro

$5/ month

Billed monthly

Every paid feature, for agencies and growing products.

5,000 submissions / mo
Unlimited forms
Webhooks and integrations
CC/BCC, auto-replies and routing
File uploads with 500 MB storage
Stripe payments on your forms
3 team seats
Cancel anytime

Annual

$49/ year

About $4.08/mo, billed yearly

Best value

Every Pro feature with triple the volume — $0.27 per 1,000 at full use.

15,000 submissions / mo
Unlimited forms
Everything in Pro
File uploads with 5 GB storage
3 team seats
Priority email support

No credit card required on Free • Cancel anytime • Full pricing and FAQ