Newsletter signups

Grow a mailing list from any static or marketing site with one domain-locked form endpoint and optional double opt-in.

The problem

You need emails for a list without standing up a backend or wiring a heavy ESP form embed.

How Simple Signups fits

Create a campaign, allow-list your site domains, and point a plain HTML form at the subscribe endpoint. Export confirmed addresses whenever you send.

Working example

Swap in your public campaign id (pub_...) and add your site domain to the campaign allow-list. Full field reference is in the developer docs.

HTML newsletter form

<p>Subscribe to our newsletter for occasional updates. No spam — unsubscribe anytime.</p>
<form action="https://simple-signups.com/api/subscribe" method="POST">
  <input type="hidden" name="campaignId" value="pub_your_campaign_id" />
  <input type="email" name="email" required placeholder="you@example.com" />
  <input type="text" name="hp" tabindex="-1" autocomplete="off"
    style="position:absolute;left:-9999px" aria-hidden="true" />
  <button type="submit">Subscribe</button>
</form>

fetch (JSON)

await fetch('https://simple-signups.com/api/subscribe', {
  method: 'POST',
  headers: { 'content-type': 'application/json' },
  body: JSON.stringify({
    "campaignId": "pub_your_campaign_id",
    "email": "jane@example.com"
  }),
});

Next step

Create a campaign in the dashboard, copy the public id, and paste the form above onto your site.

Read the docs Back to home