Newsletter Signup · Next.js

Newsletter Signup for Next.js

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

Copy-paste code

Drop into any Next.js project.

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

Get free access key

Form.tsx

'use client';

import { useEffect, useState, type FormEvent } from 'react';

export default function NewsletterForm() {
  const [status, setStatus] = useState<'idle' | 'sending' | 'sent' | 'error'>('idle');

  // splitforms tracker (drop-off analytics + partial leads), loaded once. It
  // finds the form by data-sf-key and adds a hidden sf_sid field to it.
  useEffect(() => {
    const src = 'https://splitforms.com/embed.js';
    if (document.querySelector(`script[src="${src}"]`)) return;
    const script = document.createElement('script');
    script.src = src;
    script.async = true;
    document.body.appendChild(script);
  }, []);

  async function onSubmit(e: FormEvent<HTMLFormElement>) {
    e.preventDefault();
    setStatus('sending');

    // Capture the form now: React clears e.currentTarget once the handler
    // yields at the first await, so calling e.currentTarget.reset() later throws.
    const form = e.currentTarget;
    const data = new FormData(form);
    data.set('access_key', 'YOUR_ACCESS_KEY');
    data.set('subject', 'New newsletter subscriber');

    const res = await fetch('https://splitforms.com/api/submit', {
      method: 'POST',
      body: data,
      headers: { Accept: 'application/json' },
    });

    const json = await res.json();
    if (json.success && json.payment_url) {
      // Payment form: finish the payment on the secure Stripe page.
      window.location.href = json.payment_url;
      return;
    }
    setStatus(json.success ? 'sent' : 'error');
    if (json.success) form.reset();
  }

  if (status === 'sent') return <p>Thanks — we&rsquo;ll be in touch.</p>;

  return (
    <form data-sf-key="YOUR_ACCESS_KEY" onSubmit={onSubmit}>
      <label htmlFor="email">Your email *</label>
      <input id="email" type="email" name="email" placeholder="[email protected]" required />

      <button type="submit" disabled={status === 'sending'}>
        {status === 'sending' ? 'Sending…' : 'Send'}
      </button>

      {status === 'error' && <p>Something went wrong. Try again.</p>}
    </form>
  );
}

Next.js + Newsletter Signup

Built for Next.js developers who hate operating a backend.

Next.js Server Actions handle the submit side but still leave you wiring SMTP, spam filtering, file uploads, and a dashboard. splitforms replaces all of that with one fetch('/api/submit') call. The newsletter signup works identically in App Router and Pages Router — it's just a FormData POST, no router-specific magic. Because Next.js pre-renders pages, the form HTML is in the DOM before any JavaScript executes, meaning instant Time-to-Interactive. The honeypot field is invisible to users but catches bots that scrape rendered HTML — especially important for Next.js sites where the form HTML is statically generated and predictable.

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 Next.js

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 Next.js project

Drop the form snippet into a Next.js 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 Next.js — answered.

View all FAQs

Does this newsletter signup work on Next.js?

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

How much does the newsletter signup cost on Next.js?

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.

How does spam protection work on the newsletter signup?

A hidden honeypot field catches dumb bots, and a rule-based filter scores the rest; anything that looks like spam goes to a separate Spam tab instead of your inbox. No CAPTCHA, no friction for human users — and it works the same on Next.js as on any other framework.

Can I send the newsletter signup submissions to Slack or Discord?

Yes. Webhooks are available on paid plans, with auto-formatted payloads for Slack, Discord, and WhatsApp (via CallMeBot). Or send raw signed JSON to any URL — Zapier, n8n, your own server. Configure in the splitforms dashboard.

Will it work on a static Next.js site?

Yes — the form posts directly to splitforms from the browser, so no server is involved. Works on Vercel, Netlify, GitHub Pages, Cloudflare Pages, S3, or any plain Apache host.

Will my form trigger GDPR consent requirements?

If you have any EU or UK visitors, yes — GDPR requires explicit, freely-given consent for marketing emails. Add a separate consent checkbox (not pre-checked) below the email field. Same applies to CASL in Canada and PECR in the UK. US-only audiences fall under CAN-SPAM, which is less strict but still requires honest unsubscribe handling.

How do I push to ConvertKit / Mailchimp / Substack / Beehiiv?

Webhook the submission as JSON. ConvertKit has a native webhook receiver per form; Mailchimp accepts via API or Zapier; Substack accepts via Beehiiv/Substack import API or Zapier; Beehiiv has direct webhook support. The newsletter platform fires the welcome sequence automatically on add.

Does double opt-in hurt list growth?

Double opt-in drops list size by 20-30% but improves deliverability and engagement metrics — single-opt-in lists accumulate spam-trap addresses that tank inbox placement. Most serious senders run double opt-in for that reason. Substack and Beehiiv default to it.

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