Get a free access key
Sign in to splitforms and create a form to get an access_key. The Free plan covers 500 signups a month with no credit card and unlimited forms.
Newsletter signup form
Newsletter signup form with Mailchimp sync.
A single email field that posts to a hosted backend — no server code. Every subscriber is stored, emailed to you, and synced to your ESP.
- 500 free / mo
- No server code
- Mailchimp sync
No server code
No PHP, SMTP, or server route — the endpoint is the backend. Your newsletter form posts straight to one URL.
Spam-filtered signups
A honeypot and form_loaded_at time-trap block bot signups before they're stored — no CAPTCHA needed.
Mailchimp + ESP sync
Every signup is emailed to you and, on Pro, forwarded by signed webhook to Mailchimp, ConvertKit, Brevo, or any ESP.
Copy-paste ready
Your newsletter signup form HTML, ready to paste.
Drop this into your footer, a popup, or an inline block, and swap in your access key. It posts directly to splitforms — no server, no PHP, no API route to write.
<form action="https://splitforms.com/api/submit" method="POST">
<input type="hidden" name="access_key" value="YOUR_ACCESS_KEY">
<input type="hidden" name="subject" value="New newsletter signup">
<input type="hidden" name="form_loaded_at" id="form_loaded_at">
<input type="email" name="email" placeholder="[email protected]" required>
<input type="text" name="first_name" placeholder="First name (optional)">
<!-- Honeypot — leave empty, bots fill every field -->
<input type="checkbox" name="botcheck" style="display:none" tabindex="-1" autocomplete="off">
<button type="submit">Subscribe →</button>
</form>
<script>
document.getElementById('form_loaded_at').value = Date.now();
</script>Setup
How to add a newsletter signup form to your website.
No server, no SMTP setup. These are the same six steps whether you paste the form into a footer, a popup, or a WordPress custom-HTML block.
Add the email field
Paste the form code below into your footer, a popup, or an inline block, and swap in your access_key. Email is the only required field — first name is optional.
Add the spam traps
Keep the hidden botcheck honeypot empty and the form_loaded_at time-trap set to the page-load timestamp — both are checked server-side before a signup is stored.
Test a submission
Submit a test signup from the live page and confirm it lands in your dashboard and inbox — owner email notifications are included free on every plan.
Connect Mailchimp or your ESP
On paid plans, forward each signup through a signed webhook to your own Mailchimp relay or to Zapier, Make, n8n, ConvertKit, Brevo, ActiveCampaign, or another ESP endpoint.
Redirect subscribers after they sign up
Add a hidden redirect field pointing at a thank-you page, or leave it out — the signup is already stored and routed either way.
Newsletter backend
What a newsletter signup form backend does.
A newsletter signup form is a single email field that posts straight to a hosted backend instead of your own server code. splitforms receives each signup at POST /api/submit, screens it for spam, stores it in your dashboard, and emails you instantly — and on paid plans forwards it by signed webhook to Mailchimp or another ESP. Building this in React or Next.js? The same endpoint accepts a JSON fetch() POST — see the API docs. On a WordPress blog? Use the WordPress form guide or the splitforms plugin instead of pasting raw HTML.
- Capture signups from a footer, popup, inline block, React component, iframe, or WordPress shortcode
- Filter bots with a botcheck honeypot and form_loaded_at time-trap, then content heuristics and rate limiting (6/min)
- Store every subscriber searchable in your dashboard, with CSV/XML/PDF exports on paid plans
- Sync each signup by signed webhook to Mailchimp, ConvertKit, Brevo, or any ESP on paid plans
Form fields
What to ask on a newsletter signup form.
Keep the required list short — every extra required field costs signups. A minimal, high-converting newsletter form asks for just an email, with everything else optional.
- Email — required, the only field you truly need
- First name — optional; lets you personalize the welcome email once it reaches your ESP
- Interest or segment — an optional dropdown if you run more than one newsletter or topic list
- Consent checkbox — optional; records explicit opt-in for EU, UK, or Canadian visitors (GDPR, CASL)
ESP sync
Send new subscribers to Mailchimp, ConvertKit, or any ESP.
paid plans can send each signup through a signed webhook. For Mailchimp, point it at your own small API relay or use Zapier or Make; the Mailchimp setup guide covers both paths. ConvertKit, Brevo, ActiveCampaign, and any other ESP that accepts webhook data can receive the same JSON payload — see the ConvertKit, Brevo, and ActiveCampaign guides, or the general webhooks page. Every signup is also available over the REST API (GET /api/submissions with a bearer token), or hand the token to an AI agent through the free MCP server.
How SplitForms works
From form to workflow in 3 simple steps.
Connect your form, collect every submission, and send data where it needs to go — without building backend infrastructure.
Add your endpoint
Point your form to your unique SplitForms endpoint. That's it.
Receive submissions
We instantly capture and organize every submission in your inbox.
Route anywhere
Send data to email, spreadsheets, CRMs, webhooks, and 7,000+ apps.
No credit card required. Set up in under 60 seconds.
Connect & automate
Connect your favorite tools and automate everything
SplitForms works with the destinations you route to and the platforms you build on — from Slack and Sheets to WordPress, Shopify, and Next.js. And 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 →Trusted by indie teams and agencies shipping forms worldwide
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Testimonials
Loved by developers shipping at every scale.
40 quotes on record — from indie hacks to agency migrations.
“I replaced a Lambda + DynamoDB + SES contact form with six lines of HTML. It took eleven minutes, and the dashboard is better than what I was going to build.”
“We migrated 14 client sites off Formspree in a single weekend. The price is a third of what we paid, the API is more honest, and the spam filter actually works.”
“The webhook payload is signed, idempotent, and well-shaped. It reads like code from a competent team, not a CRUD app held together with duct tape.”
“I stopped reaching for Typeform on small marketing sites. splitforms covers 90% of the use case at none of the bloat.”
“I onboarded our whole agency in an afternoon. The MCP integration meant Cursor literally dropped the form straight into our client repos for us.”
“The free plan gave me 500 submissions before I paid a cent, and Pro is five dollars a month. I've spent more on coffee deciding which backend to use.”
“Spam went from forty junk entries a day to zero, with no reCAPTCHA puzzle ruining the form. The honeypot and time-trap just quietly do their job.”
“Point the form action at one endpoint and you're done. No SDK, no client library, no build step. This is how a form backend should feel.”
“Leads land in Slack the second someone submits, and a copy goes to Google Sheets for the sales team. I wired both up in under ten minutes.”
“I run a static Hugo site on a five-dollar VPS. splitforms gave it a real contact form without me standing up a single server.”
Questions
Newsletter signup form questions.
View all FAQsHow do I add a newsletter signup form to my website?
Add an email input with a submit button, point the form's action at https://splitforms.com/api/submit, and add your access_key as a hidden field. Each signup is stored in your dashboard and emailed to you automatically — that's included free on every plan.
Can I send new signups to Mailchimp, ConvertKit, or another ESP?
Yes, on paid plans. Send a signed webhook to your own Mailchimp API relay, or use Zapier, Make, n8n, or another ESP endpoint. The dashboard's Mailchimp connection receives Mailchimp events; it does not add splitforms signups to an audience automatically.
Can I add a newsletter form to Ghost, WordPress, Webflow, or a static site?
Yes. The form posts from plain HTML, so it works on any platform — Ghost, WordPress, Webflow, Shopify, Astro, Hugo, or a static site. WordPress sites can also use the splitforms plugin instead of pasting raw HTML.
Is a newsletter signup form backend free?
Yes. Free covers 500 signups a month with unlimited forms, spam filtering, and email notifications included. Pro is $5/month for 5,000 submissions with exports, webhooks, integrations, and an auto-responder; Pro is $5/month for 5,000 with CC/BCC and priority support; the 3-Year plan is $59 for the first 3 years, then $59/year, for 15,000/month.
How do I stop bots from spamming my newsletter signup form?
Every submission passes through the hidden botcheck honeypot and the form_loaded_at time-trap, plus server-side content heuristics and rate limiting (6 submissions/minute per IP, 20 per 15 minutes — anything past that gets an HTTP 429). Add per-form allowed domains, strict origin mode, or your own reCAPTCHA v2 key for extra coverage.
Does splitforms handle double opt-in or GDPR consent?
splitforms doesn't send a confirmation or double opt-in email itself — it stores the signup, emails you, and can forward it to your ESP (Mailchimp, ConvertKit, and others), which then runs the double opt-in and welcome sequence. On paid plans you can switch on splitforms' own auto-responder for an immediate reply — a single automatic email, not a double opt-in flow. For GDPR or CASL, add a consent checkbox to the form so each subscriber's opt-in is recorded alongside their email.
Can I redirect subscribers after they sign up, or set a custom email subject?
Yes. Add a hidden redirect field with a URL to send subscribers to a thank-you page, and a hidden subject field to control the notification email's subject line — both work with no extra setup.
Can I embed the form as a popup or widget instead of a full page?
Yes. The splitforms dashboard gives you per-platform embed code — plain HTML, a React component, an iframe, or a WordPress shortcode — so you can drop the same form into a popup, a footer widget, or inline in a post without hand-coding the embed.
Simple pricing
Start free. Scale when you need more.
Choose a plan that fits your workflow — from a free form endpoint to full automations, exports, Stripe payments, and higher submission limits.
Free
$0
For side projects and indie devs.
- 500 submissions / mo
- Unlimited forms
- Email notifications included
- Honeypot spam filtering
- Submissions dashboard
- MCP setup stays free
- No credit card required
Most Popular
Pro
$5/ month
was $15 · save 67% · new-user price
For agencies and growing products.
- 5,000 submissions / mo
- Unlimited forms
- Stripe payments on your forms
- Every paid feature included
- Priority support (under 4hr)
- 10× free submission volume
- Cancel anytime
Pre-launch · founders pricing locked in
3-Year
$59/ first 3 years
was $99 · save 40% · new-user price
Pay $59. 3 years sorted.
- 15,000 submissions / mo
- Unlimited forms
- Everything in Pro
- $59 for 3 years, then $59/year
- Long-term discount
- Priority support included
- Vote on the roadmap
No credit card required on Free • Cancel anytime