splitforms.com
LEAD CAPTURE · CONTACT FORM TEMPLATE

Contact Forms for Modern Websites

Modern websites don't need a server, a database, or a PHP runtime to receive a contact form submission. They need one HTTPS endpoint, spam filtering, and a place where messages actually land.

1,000/mo free·no card·works on any host
form.htmlhtml22 lines
01<form action="https://splitforms.com/api/submit" method="POST">
02 <input type="hidden" name="access_key" value="YOUR_ACCESS_KEY">
03 <input type="hidden" name="subject" value="New contact form submission">
04
05 <label for="name">Full name *</label>
06 <input id="name" type="text" name="name" placeholder="Jane Builder" required>
07 <label for="email">Email *</label>
08 <input id="email" type="email" name="email" placeholder="jane@example.com" required>
09 <label for="phone">Phone *</label>
10 <input id="phone" type="tel" name="phone" placeholder="+1 415 555 0142" required>
11 <label for="message">Message *</label>
12 <textarea id="message" name="message" placeholder="How can we help?" required></textarea>
13
14 <!-- honeypot — bots fill every field -->
15 <input type="checkbox" name="botcheck" style="display:none" tabindex="-1" autocomplete="off">
16
17 <button type="submit">Send</button>
18</form>
19
20<p style="margin-top:12px;font-size:11px;color:#888;text-align:right">
21 Powered by <a href="https://splitforms.com" style="color:#888;text-decoration:none" target="_blank" rel="noopener">splitforms</a>
22</p>
1,000
submissions / mo, free
4
fields, ready to ship
5
code outputs
60s
from copy to inbox
§ 01Why it mattersthe qualifying-fields argument

If you're building a Next.js / Astro / Webflow site in 2026, you don't want to spin up a backend just to send a 'contact us' email. You want to drop one URL into a form's action and have submissions land — filtered, signed, logged. That's what splitforms is. The same endpoint works on the smallest static page and on the largest enterprise marketing site.

Used in production by indie devs, design agencies, and marketing sites that didn't want to operate a backend.
✦ at a glance
  • Basic contact form · 4 fields
  • HTML, JS, React, PHP, cURL outputs
  • One POST endpoint, no SDK
  • Honeypot + classifier, no CAPTCHA
§ 02Live previewinteractive · sandboxed · no key required

See exactly what your visitors see — and you’ll receive.

Left: the rendered form, fully interactive in a sandboxed iframe. Right: the email and dashboard view that lands the moment a visitor submits.

preview · contact-forms-for-modern-websiteslocalhost:3000
✦ what you’ll see in your inbox

Every submission becomes an email plus a dashboard row. The fields below are the exact payload your form will send. Reply-to is wired to the visitor’s email so hitting reply goes back to them.

dashboard · new submission14ms · 200 OK
SUBJECT · New contact form submission
Full name
Maya Iyer
Email
maya@studio71.co
Phone
+1 415 555 0142
Message
Loved your last open house in Hayes — looking for similar with parking. Pre-approved through Wells Fargo.

Iframe is sandboxed — submit doesn’t actually fire. Get your access key to wire it up live.

§ 03Three steps3 steps · ~60 seconds

Generate, embed, receive.

Three actions stand between you and your first lead. None of them require a backend, a database, or a CAPTCHA library.

STEP 01GENERATE

Generate a free access key

Sign in with email — your access key is created instantly. No credit card, no setup wizard.

Create your form
key=sk_live_••••••••
STEP 02EMBED

Paste the snippet on any page

Drop the form HTML into your Next.js page, Astro layout, Webflow embed block, Carrd page, or plain HTML file. Replace YOUR_ACCESS_KEY with yours.

snippethtml
<form action="https://splitforms.com/api/submit" method="POST">
  …
</form>
STEP 03RECEIVE

Receive submissions

Email arrives within seconds. Webhook fires in parallel. Dashboard updates live. CSV export, Slack/Discord forwarding, BCC to your team — all included free.

inbox · 1 newjust now
FROM contact@yoursite.com
New contact form submission
Maya Iyer maya@studio71.co
Loved your last open house in Hayes — looking for similar with parking. Pre-approved through Wells Fargo.
§ 04Copy & ship5 languages · same endpoint

Five outputs. One backend.

HTML by default. Click open the language you ship in — every variant POSTs to the same /api/submit endpoint.

01HTMLform.html22 lines
<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 contact form submission">

  <label for="name">Full name *</label>
  <input id="name" type="text" name="name" placeholder="Jane Builder" required>
  <label for="email">Email *</label>
  <input id="email" type="email" name="email" placeholder="jane@example.com" required>
  <label for="phone">Phone *</label>
  <input id="phone" type="tel" name="phone" placeholder="+1 415 555 0142" required>
  <label for="message">Message *</label>
  <textarea id="message" name="message" placeholder="How can we help?" required></textarea>

  <!-- honeypot — bots fill every field -->
  <input type="checkbox" name="botcheck" style="display:none" tabindex="-1" autocomplete="off">

  <button type="submit">Send</button>
</form>

<p style="margin-top:12px;font-size:11px;color:#888;text-align:right">
  Powered by <a href="https://splitforms.com" style="color:#888;text-decoration:none" target="_blank" rel="noopener">splitforms</a>
</p>
02JavaScriptform.js38 lines
<form id="lf-form">
  <label for="name">Full name *</label>
  <input id="name" type="text" name="name" placeholder="Jane Builder" required>
  <label for="email">Email *</label>
  <input id="email" type="email" name="email" placeholder="jane@example.com" required>
  <label for="phone">Phone *</label>
  <input id="phone" type="tel" name="phone" placeholder="+1 415 555 0142" required>
  <label for="message">Message *</label>
  <textarea id="message" name="message" placeholder="How can we help?" required></textarea>
  <button type="submit">Send</button>
</form>

<p style="margin-top:12px;font-size:11px;color:#888;text-align:right">
  Powered by <a href="https://splitforms.com" style="color:#888;text-decoration:none" target="_blank" rel="noopener">splitforms</a>
</p>

<script>
  document.getElementById('lf-form').addEventListener('submit', async (e) => {
    e.preventDefault();
    const data = new FormData(e.target);
    data.set('access_key', 'YOUR_ACCESS_KEY');
    data.set('subject', 'New contact form submission');

    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) {
      e.target.reset();
      alert('Sent!');
    } else {
      alert('Error: ' + (json.message || 'Try again'));
    }
  });
</script>
03React / Next.jsForm.tsx53 lines
'use client';

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

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

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

    const data = new FormData(e.currentTarget);
    data.set('access_key', 'YOUR_ACCESS_KEY');
    data.set('subject', 'New contact form submission');

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

    const json = await res.json();
    setStatus(json.success ? 'sent' : 'error');
    if (json.success) e.currentTarget.reset();
  }

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

  return (
    <>
    <form onSubmit={onSubmit}>
      <label htmlFor="name">Full name *</label>
      <input id="name" type="text" name="name" placeholder="Jane Builder" required />
      <label htmlFor="email">Email *</label>
      <input id="email" type="email" name="email" placeholder="jane@example.com" required />
      <label htmlFor="phone">Phone *</label>
      <input id="phone" type="tel" name="phone" placeholder="+1 415 555 0142" required />
      <label htmlFor="message">Message *</label>
      <textarea id="message" name="message" placeholder="How can we help?" required />

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

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

      <p style={{ marginTop: 12, fontSize: 11, color: '#888', textAlign: 'right' }}>
        Powered by <a href="https://splitforms.com" target="_blank" rel="noopener" style={{ color: '#888', textDecoration: 'none' }}>splitforms</a>
      </p>
    </>
  );
}
04PHPsubmit.php28 lines
<?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') {
    $allowed = ['name', 'email', 'phone', 'message'];
    $payload = ['access_key' => 'YOUR_ACCESS_KEY'];
    $payload['subject'] = 'New contact form submission';

    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;
}
?>
05cURLtest.sh8 lines
curl -X POST https://splitforms.com/api/submit \
  -H "Accept: application/json" \
  -d "access_key=YOUR_ACCESS_KEY" \
  -d "subject=New contact form submission" \
  -d "name=Jane Builder" \
  -d "email=jane@example.com" \
  -d "phone=+15555555555" \
  -d "message=Hello from cURL" 

Replace YOUR_ACCESS_KEY with the key from your dashboard. That’s the only edit.

§ 06FAQ4 answered

Things people ask before they ship.

Direct answers, no marketing fluff. Missing one? Email hello@splitforms.com.

01Does this work on a static site like Next.js or Astro?
Yes. The form action is just a URL — there is no SDK, no React hook, no build-time integration. Drop the HTML into any page, deploy to Vercel, Netlify, GitHub Pages, or Cloudflare Pages, and submissions arrive immediately.
02What modern frameworks are supported?
All of them — because every framework can render an HTML form. Next.js (App Router and Pages), React, Vue, Nuxt, Svelte, SvelteKit, Astro, Hugo, Gatsby, Remix, Eleventy, and 11ty all work identically. The integration is the same one POST request.
03How is this different from server actions or API routes?
You can write your own API route — but you'll still need email delivery (SES / Resend / Mailgun), a database for retention, spam filtering, webhook signing, and a dashboard. splitforms ships all of that as one drop-in endpoint.
04Is this really free?
Yes. 1,000 submissions a month, unlimited forms, spam filtering, webhooks, dashboard — all on the free plan. No card needed. Pro is $5/mo for 5,000 submissions if you outgrow it.
✻ ✻ ✻

Ship your contact forms for modern websites in 60 seconds.

1,000 free submissions per month. No credit card. Copy the snippet, paste your access key, watch leads land in your inbox.

Get free access key →Browse all 60 templates →
v0.1 · founders pricing locked in · early access open