CONTACT FORM (WITH PHONE) · ASTRO

Contact Form (with phone) for Astro

Name, email, phone, company, reason — for B2B inquiries that need qualification. Free for 500 submissions per month — no backend, no SDK, no plugin.

Get free access key Copy the code

500/mo free·no card·drop-in for Astro

form.htmlhtml30 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 detailed contact 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">Work email *</label>
08  <input id="email" type="email" name="email" placeholder="jane@company.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="company">Company</label>
12  <input id="company" type="text" name="company" placeholder="Acme Inc">
13  <label for="reason">What's this about? *</label>
14  <select id="reason" name="reason" required>
15    <option value="">Choose…</option>
16    <option>Sales / pricing</option>
17    <option>Partnerships</option>
18    <option>Press / media</option>
19    <option>Support</option>
20    <option>Careers</option>
21    <option>Other</option>
22  </select>
23  <label for="message">Message *</label>
24  <textarea id="message" name="message" placeholder="Give us context — links, dates, deal size, anything we should know." required></textarea>
25 
26  <!-- honeypot — bots fill every field -->
27  <input type="checkbox" name="botcheck" style="display:none" tabindex="-1" autocomplete="off">
28 
29  <button type="submit">Send</button>
30</form>

500

submissions / mo, free

fields, ready to ship

code outputs

60s

from copy to inbox

§ 00Astro + Contact Form (with phone)platform-specific integration guide

Why Astro developers choose splitforms for contact form (with phone)

Astro's static-first architecture means your form HTML ships pre-rendered with zero client JavaScript — perfect for fast page loads, but it also means you can't call a server-side endpoint on static hosts. splitforms is designed for exactly this: the browser POSTs directly to our edge endpoint, so the form works on Netlify, Cloudflare Pages, Vercel, or any static host without an Astro API route. The contact form (with phone) is pure HTML — no <code><script></code> tag, no client component, no island. Astro's view transitions and partial hydration don't interfere with the form submission because it uses a standard browser POST.

§ 00Quick answerHTML · lead capture

Yes — this is the shortest safe path for Astro.

Use the HTML snippet on this page, keep the contact form (with phone) fields visible in your Astro UI, and let splitforms handle delivery, spam filtering, storage, and webhooks.

best implementation

Paste the HTML version, then replace YOUR_ACCESS_KEY.

The posted payload contains full name, work email, phone, company, what's this about?, message. Required fields are full name, work email, phone, what's this about? and message.

native astro reality

Astro's whole pitch is shipping zero JavaScript by default.

use case fit

A contact form with a phone number field that auto-formats as the user types — (555) 123-4567 emerges from raw digits. Pure pattern validation, optional JS mask for the live formatting.

§ 01Contact Form (with phone) × Astrowhy this combination, in 80 words

Built for Astro developers who hate operating a backend.

Splitforms is the form backend for Astro sites. One POST endpoint, no SDK, no plugin — drop the contact form (with phone) into a page and ship.

Splitforms is the form backend for Astro sites. One POST endpoint, spam filtering, and a real dashboard — drop-in, no server, no PHP. Free for 500 dashboard submissions per month; Starter adds email, signed webhooks, exports, and retained uploads; Pro is $5/mo for 5,000.

✦ what you get on the free plan

✓500 form submissions per month
✓2 forms on Free; unlimited forms on Pro
✓Spam protection (honeypot + classifier)
✓Webhooks: Slack, Discord, WhatsApp, custom
✓CSV export of all submissions
✓Email notifications (CC and BCC on Pro)

§ 02Copy-paste codeHTML · 30 lines

Drop into any Astro project.

Replace YOUR_ACCESS_KEY with your splitforms key, paste into a Astro page, and ship. No build-time integration required.

form.htmlhtml30 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 detailed contact 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">Work email *</label>
08  <input id="email" type="email" name="email" placeholder="jane@company.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="company">Company</label>
12  <input id="company" type="text" name="company" placeholder="Acme Inc">
13  <label for="reason">What's this about? *</label>
14  <select id="reason" name="reason" required>
15    <option value="">Choose…</option>
16    <option>Sales / pricing</option>
17    <option>Partnerships</option>
18    <option>Press / media</option>
19    <option>Support</option>
20    <option>Careers</option>
21    <option>Other</option>
22  </select>
23  <label for="message">Message *</label>
24  <textarea id="message" name="message" placeholder="Give us context — links, dates, deal size, anything we should know." required></textarea>
25 
26  <!-- honeypot — bots fill every field -->
27  <input type="checkbox" name="botcheck" style="display:none" tabindex="-1" autocomplete="off">
28 
29  <button type="submit">Send</button>
30</form>

§ 03Setup3 steps · 60 seconds · zero config

Generate, embed, receive.

Three actions stand between you and your first contact form (with phone) submission. None of them require a backend, a database, or a CAPTCHA library.

STEP 01GENERATE

Generate a free splitforms key

Create your form

key=sk_live_••••••••

STEP 02EMBED

Paste the contact form (with phone) into your Astro project

Drop the form snippet into a Astro page, component, or layout. Replace YOUR_ACCESS_KEY with the key from your dashboard. The form action is a hard-coded URL — no env vars or build-time wiring needed.

snippethtml

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

STEP 03RECEIVE

Receive submissions

Dashboard updates live on Free. Starter adds email delivery, signed webhooks, CSV export, Slack/Discord forwarding, and BCC to your team.

inbox · 1 newjust now

FROM contact@yoursite.com

New detailed contact submission

Maya Iyer maya@studio71.co

Loved the demo — quick question about pricing on the 3-year plan. Are usage limits per project or account-wide?

§ 03bPhone Number Input Form (with masked input)template-specific playbook

The reason this contact form (with phone) exists.

Mobile-friendly numeric keypad, live mask, format-tolerant.

why it matters

Phone fields suffer from format chaos — users type +1 555 123 4567, (555) 123 4567, 555.123.4567, 5551234567. Three options: accept anything and normalize server-side (best for international), use a pattern attribute for client-side validation (good for US-only), or apply a JavaScript mask that formats as the user types (highest conversion, more code). splitforms accepts any format and your form's UX is whichever approach fits your audience.

route the submission

Use type="tel" not type="text"

Mobile keyboards open the numeric keypad for tel inputs. Desktop accepts the same characters as text but signals intent.

Add a pattern attribute for validation

`pattern="[0-9() +-]+"` allows the common phone characters. Or use a strict US format: `pattern="$?\d{3}$?[ -]?\d{3}[ -]?\d{4}"`.

(Optional) Add the JS mask

On input, strip non-digits and reformat to `(XXX) XXX-XXXX`. The mask runs on every keystroke, giving live formatting feedback.

§ 03cAstro production notesnative path · deploy · gotchas

What changes when this contact form (with phone) lives in Astro.

These notes come from the Astro platform registry and are rendered on this template page so crawlers see the framework-specific answer without opening a separate guide.

without splitforms

Astro's whole pitch is shipping zero JavaScript by default. A native contact form on Astro means either (a) building a form with no submission target — useless — or (b) standing up an API endpoint via output: 'server' or 'hybrid', which means writing a Node/Bun/Deno handler, picking an email provider, writing your own honeypot logic. Astro 5 added typed Actions, but they're a wrapper around the same underlying fetch — you still deliver the email yourself. The result: every Astro contact-form tutorial ends with 'now configure SendGrid'. Splitforms is the SendGrid-replacement that doesn't require an account, an API key for the email provider, or DNS records for SPF/DKIM.

deploy notes

Astro deploys cleanly to Vercel, Netlify, Cloudflare Pages, GitHub Pages, and any static host with output: 'static'. For Astro Actions (Pattern B), you need output: 'server' or 'hybrid' and a matching adapter (@astrojs/vercel, @astrojs/netlify, @astrojs/cloudflare). On Cloudflare Pages with the Cloudflare adapter, the Action runs in a Worker — keep the splitforms fetch tight (no extra proxying) to stay under the 10ms CPU budget on the free plan. The PUBLIC_ prefix is mandatory for env vars exposed to client-rendered .astro files; vars without it are silently undefined. Lock the key to your *.pages.dev and custom domain.

Astro gotcha

PUBLIC_ prefix is required for client-exposed env vars

Astro mirrors Vite's env-var convention: only variables prefixed with PUBLIC_ are exposed to client-side code (and to .astro files when output: 'static'). If you write import.meta.env.SPLITFORMS_KEY, you'll get undefined at build time. Rename to PUBLIC_SPLITFORMS_KEY.

Astro gotcha

client:load on the form island defeats the point of Astro

If you wrap the form in <MyForm client:load />, you ship a full React/Preact runtime just for one form. Use client:visible (load when scrolled into view) or client:idle (load after main thread is free) instead. For zero-JS forms, skip the island entirely and use a plain HTML form action.

Astro gotcha

Astro Actions need a try/catch or they crash the page

If your action throws, Astro 5's behavior is to render an error page rather than return the error to your form. Wrap the splitforms fetch in try/catch and return { success: false, message } from the action — your form component can then render the message.

Astro gotcha

View Transitions can break form re-submit state

If you've enabled <ViewTransitions /> in your layout, navigating to /contact and back may re-mount the form mid-submission. Add data-astro-reload to the form's submit anchor or guard with if (status === 'loading') return at the top of your handler.

PATTERN A

Pattern A — pure HTML form (zero JS shipped)

The Astro-native approach: a .astro file with frontmatter pulling the key from import.meta.env, then a static <form action> that posts directly. Zero hydration, zero island, zero KB JavaScript. Use the same wiring for the contact form (with phone) fields on this page.

pattern-a.txtastro10 lines

01---
02const ACCESS_KEY = import.meta.env.PUBLIC_SPLITFORMS_KEY;
03---
04<form action="https://splitforms.com/api/submit" method="POST">
05  <input type="hidden" name="access_key" value={ACCESS_KEY} />
06  <input type="hidden" name="redirect"   value="/thanks" />
07  <input name="email" type="email" required />
08  <textarea name="message" required />
09  <button type="submit">Send</button>
10</form>

PATTERN B

Pattern B — Astro Action for typed server-side proxying

Astro 5 Actions give you Zod-validated, type-safe form handlers. Use one to keep the access key off the client entirely — the form posts to the action, the action proxies to splitforms. Use the same wiring for the contact form (with phone) fields on this page.

pattern-b.txtastro17 lines

01// src/actions/index.ts
02import { defineAction } from "astro:actions";
03import { z } from "astro:schema";
04export const server = {
05  contact: defineAction({
06    accept: "form",
07    input: z.object({ email: z.string().email(), message: z.string() }),
08    async handler(input) {
09      const fd = new FormData();
10      Object.entries(input).forEach(([k, v]) => fd.append(k, v));
11      fd.append("access_key", import.meta.env.SPLITFORMS_KEY);
12      const r = await fetch("https://splitforms.com/api/submit", { method: "POST", body: fd });
13      if (!(await r.json()).success) throw new Error("Submission failed");
14      return { ok: true };
15    },
16  }),
17};

§ 04Field-by-field rundown6 fields · names you POST

What every field actually does.

Each field below ships in the contact form (with phone) template — rename, remove, or add your own. Splitforms accepts any name you POST.

nameREQUIRED

TEXT

Full name

Greeting + dashboard label so submissions don't all read 'anonymous'.

placeholder · Jane Builder

emailREQUIRED

Work email

Reply-to address — splitforms wires this so hitting reply goes back to the sender.

placeholder · jane@company.com

phoneREQUIRED

PHONE

Phone

Faster qualification — phone leads convert ~3× higher than email-only on B2B forms.

placeholder · +1 415 555 0142

company

TEXT

Company

Lets you sort enterprise vs SMB inquiries before you reply.

placeholder · Acme Inc

reasonREQUIRED

SELECT

What's this about?

Routes the lead to the right inbox folder or teammate.

Sales / pricingPartnershipsPress / mediaSupportCareersOther

messageREQUIRED

TEXTAREA

Message

Free-text context — what the visitor actually wants you to know.

placeholder · Give us context — links, dates, deal size, anything we should know.

§ 05Contact Form (with phone) on other frameworks21 frameworks · same backend

One backend. Every framework.

The same contact form (with phone) template works on every framework splitforms supports. Pick yours.

§ 06Questions9 answered

Contact Form (with phone) on Astro — FAQ.

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

01Does this contact form (with phone) work on Astro?

Yes. The form is plain HTML with a single POST endpoint, so it runs on any Astro site without server-side code, plugins, or SDKs. Drop the snippet into a Astro page or component and submissions land in your splitforms dashboard.

02How much does the contact form (with phone) cost on Astro?

Free for 500 submissions per month — no credit card, no trial. Pro is $5/mo for 5,000 submissions, and there's a one-time $59 3-year plan (15,000 submissions/mo for 36 months). The same pricing applies regardless of which framework hosts the form.

03Can I customize the fields?

Yes. The template ships with sensible defaults (full name, work email, phone, company…) — add, remove, or rename any of them. Splitforms accepts whatever fields you POST.

04How does spam protection work on the contact form (with phone)?

A hidden honeypot field catches dumb bots, and a tuned classifier scores the rest. You only see real submissions in your dashboard. No CAPTCHA, no friction for human users — and it works the same on Astro as on any other framework.

05Can I send the contact form (with phone) submissions to Slack or Discord?

Yes. Webhooks are available on Starter and above, with auto-formatted payloads for Slack, Discord, and WhatsApp (via CallMeBot). Or send raw signed JSON to any URL — Zapier, n8n, your own server. Configure in the splitforms dashboard.

06Will it work on a static Astro site?

Yes — the form posts directly to splitforms from the browser, so no server is involved. Works on Vercel, Netlify, GitHub Pages, Cloudflare Pages, S3, or any plain Apache host.

07Why use type="tel" if it doesn't do anything special on desktop?

Two reasons. (1) Mobile keyboards: tel triggers the numeric keypad, dramatically reducing typos. (2) Accessibility: screen readers announce the field type, helping users with assistive tech understand what's expected. The 'no desktop benefit' is a feature, not a bug — the behavior matches user intent.

08Should I validate international or US-only?

Depends on your audience. International contact forms should accept any format (use a permissive pattern + server-side normalization). US-only forms can use a strict pattern that matches `(555) 123-4567`. Either way, splitforms accepts whatever format the user submits — the validation is for UX, not data integrity.

09Does the JS mask work with paste?

Yes — listen for both `input` and `paste` events, and reformat on every change. The pattern only validates on submit, so the mask gives live feedback as the user types or pastes.

§ 07Comparisonvs Web3Forms · vs Formspree

splitforms vs everything else.

Same drop-in API. More free submissions, Starter signed webhooks, MCP support no other backend has.

Feature	Web3Forms	Formspree	splitforms
Free monthly submissions	250	50	500
Custom fields beyond contact	Yes	Pro tier	Free
Webhooks (Slack / Discord)	Pro tier	Pro tier	Free, signed
AI / MCP submission inbox	No	No	Yes
Long-term plan (3-year flat)	—	—	$59 every 3 years

§ 08More templates for Astro5 adjacent patterns

Ship a contact form (with phone) on Astro in 60 seconds.

500 submissions per month, free forever. No credit card. Copy the snippet above and paste it into your Astro project.

Get free access key →Read the docs

founders pricing locked in · early access open

Contact Form (with phone) for Astro

Why Astro developers choose splitforms for contact form (with phone)

Yes — this is the shortest safe path for Astro.

Paste the HTML version, then replace YOUR_ACCESS_KEY.

Built for Astro developers who hate operating a backend.

Drop into any Astro project.

Generate, embed, receive.

Generate a free splitforms key

Paste the contact form (with phone) into your Astro project

Receive submissions

The reason this contact form (with phone) exists.

Use type="tel" not type="text"

Add a pattern attribute for validation

(Optional) Add the JS mask

What changes when this contact form (with phone) lives in Astro.

PUBLIC_ prefix is required for client-exposed env vars

client:load on the form island defeats the point of Astro

Astro Actions need a try/catch or they crash the page

View Transitions can break form re-submit state

Pattern A — pure HTML form (zero JS shipped)

Pattern B — Astro Action for typed server-side proxying

What every field actually does.

Full name

Work email

Phone

Company

What's this about?

Message

One backend. Every framework.

Contact Form (with phone) on Astro — FAQ.

splitforms vs everything else.

Other ready-to-ship Astro forms.

Ship a contact form (with phone) on Astro in 60 seconds.