How to Build an Astro Contact Form Without Serverless Functions (2026 Guide)


Astro is famous for its zero‑JavaScript‑by‑default, content‑focused approach — but the moment you need a contact form, most tutorials push you toward serverless functions, API routes, Cloudflare Workers, Netlify Functions, or custom backend logic. The problem is simple: most Astro sites don’t need a backend, and most developers don’t want to maintain one.

This guide shows you exactly how to build a fully functional Astro contact form without serverless functions, without API routes, and without writing a single line of backend code. This method works on Cloudflare Pages, Netlify, Vercel, GitHub Pages, and any static host.

Why Avoid Serverless Functions?

Serverless sounds simple — until you actually use it. Developers run into cold starts, rate limits, debugging complexity, provider‑specific quirks, deployment mismatches, CORS issues, email deliverability problems, and extra code to maintain. For a simple contact form, serverless is overkill. Astro is HTML‑first. Your form should be too.

The HTML‑Only Approach (No Serverless Required)

The simplest way to handle form submissions in Astro is to use a form backend — a service that accepts form submissions via a normal HTML <form> POST request. Fabform is built specifically for this use case: no serverless, no API routes, no JavaScript, no backend code, works everywhere, and uses a one‑time payment model instead of subscriptions.

Step 1 — Create a Fabform Endpoint

  1. Log into Fabform
  2. Create a new form
  3. Copy your unique endpoint URL:

i That’s your entire backend.

Step 2 — Add the Form to Your Astro Page

Open any .astro file — for example:

i Add this:

<form
  action="https://fabform.io/f/your-form-id"
  method="POST"
  class="space-y-4 max-w-md"
>
  <label>
    <span>Your Name</span>
    <input type="text" name="name" required />
  </label>

  <label>
    <span>Email</span>
    <input type="email" name="email" required />
  </label>

  <label>
    <span>Message</span>
    <textarea name="message" required></textarea>
  </label>

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