Generate forms on demand, ship them as plain HTML, and connect every submission to automation workflows—without maintaining a backend.
Most "form builder" tools are optimized for building one form at a time in a UI. That’s fine—until you need speed, customization, and automation.
In this guide, you’ll learn a workflow that feels almost unfair: prompt an AI to generate an HTML form, publish it as a lightweight page, and send every submission to a webhook that triggers Make.com or n8n.
The result: you can ship a lead form, onboarding form, support intake form, or waitlist form in minutes, keep full control over markup + tracking, and connect it to your automations without writing a backend.
Form builders are great for simple landing pages. But they often become limiting when you need:
If you can generate the HTML on demand (with AI), the bottleneck moves from “building the form” to “what happens after submit”. That’s where webhooks and automation tools shine.
Use a structured prompt so the output is consistent and secure. Here is a template you can reuse:
You are a senior front-end engineer.
Generate a single-file HTML form (no external build step) with:
- TailwindCSS classes (no Tailwind config, assume CDN classes)
- Fields: name, email, company, message
- Required field validation (HTML5 + small JS)
- Honeypot field for spam protection
- Submit via fetch() POST to WEBHOOK_URL as JSON
- Show loading state + success + error messages
- Do not include any third-party trackers
Return ONLY the HTML. This is a minimal, production-friendly baseline. Replace WEBHOOK_URL.
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1" />
<title>Contact</title>
</head>
<body>
<main style="max-width: 640px; margin: 48px auto; font-family: ui-sans-serif, system-ui;">
<h1 style="font-size: 28px; font-weight: 700; margin-bottom: 12px;">Contact</h1>
<p style="color: #4b5563; margin-bottom: 24px;">Send a message. We usually reply within 24 hours.</p>
<form id="lead-form">
<!-- Honeypot (should stay empty) -->
<div style="position:absolute; left:-9999px; top:-9999px;" aria-hidden="true">
<label>Company Website</label>
<input name="website" autocomplete="off" tabindex="-1" />
</div>
<label style="display:block; margin-top: 12px;">
<span>Name</span>
<input name="name" required style="width:100%; padding: 10px; border:1px solid #d1d5db; border-radius: 8px;" />
</label>
<label style="display:block; margin-top: 12px;">
<span>Email</span>
<input name="email" type="email" required style="width:100%; padding: 10px; border:1px solid #d1d5db; border-radius: 8px;" />
</label>
<label style="display:block; margin-top: 12px;">
<span>Company (optional)</span>
<input name="company" style="width:100%; padding: 10px; border:1px solid #d1d5db; border-radius: 8px;" />
</label>
<label style="display:block; margin-top: 12px;">
<span>Message</span>
<textarea name="message" required rows="5" style="width:100%; padding: 10px; border:1px solid #d1d5db; border-radius: 8px;"></textarea>
</label>
<button id="submit" type="submit" style="margin-top: 16px; width: 100%; padding: 12px; border-radius: 10px; border:0; background:#4f46e5; color:white; font-weight:600;">
Submit
</button>
<p id="status" style="margin-top: 12px;"></p>
</form>
<script>
const WEBHOOK_URL = 'https://hook.example.com/your-webhook';
const form = document.getElementById('lead-form');
const btn = document.getElementById('submit');
const status = document.getElementById('status');
form.addEventListener('submit', async (e) => {
e.preventDefault();
status.textContent = '';
const fd = new FormData(form);
const honeypot = (fd.get('website') || '').toString().trim();
if (honeypot) {
status.textContent = 'Thanks!';
return;
}
const payload = {
name: fd.get('name'),
email: fd.get('email'),
company: fd.get('company'),
message: fd.get('message'),
source: window.location.href,
ts: new Date().toISOString()
};
btn.disabled = true;
btn.textContent = 'Sending…';
try {
const res = await fetch(WEBHOOK_URL, {
method: 'POST',
headers: { 'Content-Type': 'application/json' },
body: JSON.stringify(payload)
});
if (!res.ok) {
throw new Error('Webhook returned ' + res.status);
}
status.textContent = 'Submitted. Thank you!';
form.reset();
} catch (err) {
status.textContent = 'Something went wrong. Please try again.';
console.error(err);
} finally {
btn.disabled = false;
btn.textContent = 'Submit';
}
});
</script>
</main>
</body>
</html> In Make.com, create a new scenario and add a Custom webhook trigger. Then paste the webhook URL into the form’s WEBHOOK_URL.
{
"name": "Jane Doe",
"email": "[email protected]",
"company": "Acme Inc",
"message": "I need a quote for 20 seats.",
"source": "https://your-site.com/contact",
"ts": "2026-02-19T21:25:00.000Z"
}From there, typical steps are:
source. In n8n, use a Webhook trigger node. Choose POST and JSON. Paste the production URL into the form.
// n8n Function node
const body = $json;
if (!body.email || !body.name) {
throw new Error('Missing required fields');
}
return [{
...body,
email: String(body.email).toLowerCase().trim(),
name: String(body.name).trim()
}];Webhooks are simple, but production systems need guardrails. Here are the 3 most important ones:
const submissionId = crypto.randomUUID();
const payload = {
submissionId,
name,
email,
message,
ts: new Date().toISOString()
}; It’s fine for low-risk use cases, but for public forms you should add spam protection, rate limiting, and—if needed—proxy submissions through your own backend.
Start with a honeypot field, add basic rate limiting, and consider CAPTCHAs only if you truly need them.
For file uploads, you typically want a dedicated upload endpoint or a pre-signed URL flow (S3, GCS) rather than sending large binary data to a webhook.
Yes—Make.com and n8n can route the payload to almost any destination. If you need inspiration, explore our integration guides under Integrations.
AI-generated HTML forms are a pragmatic way to ship fast, stay flexible, and keep full control. When you connect them to webhooks, Make.com, and n8n, you get an automation-first system that scales from a one-off campaign form to a full intake pipeline.
If you want to automate more steps around web pages (testing, scraping, screenshots), CustomJS gives you a native API and ready-to-use modules.
Start free with 600 requests per month
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