EVENT RSVP · HTML

Event RSVP for HTML

Attendance confirmation with headcount and dietary needs. 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 HTML

form.htmlhtml25 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 event RSVP">
04 
05  <label for="name">Your 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="attending">Will you attend? *</label>
10  <select id="attending" name="attending" required>
11    <option value="">Choose…</option>
12    <option>Yes — count me in</option>
13    <option>Maybe</option>
14    <option>No, I can't make it</option>
15  </select>
16  <label for="guests">How many guests are you bringing?</label>
17  <input id="guests" type="number" name="guests" placeholder="0">
18  <label for="dietary">Dietary preferences</label>
19  <input id="dietary" type="text" name="dietary" placeholder="Vegan, gluten-free, allergies…">
20 
21  <!-- honeypot — bots fill every field -->
22  <input type="checkbox" name="botcheck" style="display:none" tabindex="-1" autocomplete="off">
23 
24  <button type="submit">Send</button>
25</form>

500

submissions / mo, free

fields, ready to ship

code outputs

60s

from copy to inbox

§ 00HTML + Event RSVPplatform-specific integration guide

Why HTML developers choose splitforms for event rsvp

Plain HTML sites have zero built-in form delivery — <code>mailto:</code> links open broken email clients, shared-hosting PHP is vanishing, and setting up Node just for a contact form is overkill. splitforms gives you a production-grade submission pipeline from a single <code><form action></code>. No build step, no framework lock-in, no server-side code. The event rsvp on this page posts standard <code>application/x-www-form-urlencoded</code> data — the same format browsers have used since 1999 — so it works on every host from GitHub Pages to S3 to Apache.

§ 00Quick answerHTML · events

Yes — this is the shortest safe path for HTML.

Use the HTML snippet on this page, keep the event rsvp fields visible in your HTML 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 your name, email, will you attend?, how many guests are you bringing?, dietary preferences. Required fields are your name, email and will you attend?.

native html reality

Plain HTML has no built-in way to deliver a form submission anywhere — the spec only covers serializing fields and either GETting or POSTing them to whatever URL you put in action.

use case fit

Eventbrite charges 3.7% + $1.79 per ticket. For a free event, fundraiser, or private gathering, the RSVP form does the same job for $0 — and lives on your own domain.

§ 01Event RSVP × HTMLwhy this combination, in 80 words

Built for HTML developers who hate operating a backend.

Splitforms is the form backend for HTML sites. One POST endpoint, no SDK, no plugin — drop the event rsvp into a page and ship.

Splitforms is the form backend for HTML 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 · 25 lines

Drop into any HTML project.

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

form.htmlhtml25 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 event RSVP">
04 
05  <label for="name">Your 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="attending">Will you attend? *</label>
10  <select id="attending" name="attending" required>
11    <option value="">Choose…</option>
12    <option>Yes — count me in</option>
13    <option>Maybe</option>
14    <option>No, I can't make it</option>
15  </select>
16  <label for="guests">How many guests are you bringing?</label>
17  <input id="guests" type="number" name="guests" placeholder="0">
18  <label for="dietary">Dietary preferences</label>
19  <input id="dietary" type="text" name="dietary" placeholder="Vegan, gluten-free, allergies…">
20 
21  <!-- honeypot — bots fill every field -->
22  <input type="checkbox" name="botcheck" style="display:none" tabindex="-1" autocomplete="off">
23 
24  <button type="submit">Send</button>
25</form>

§ 03Setup3 steps · 60 seconds · zero config

Generate, embed, receive.

Three actions stand between you and your first event rsvp 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 event rsvp into your HTML project

Drop the form snippet into a HTML 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 event RSVP

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?

§ 03bEvent RSVP Form (Public / Private Events)template-specific playbook

The reason this event rsvp exists.

Webhooks into Notion / Airtable / Google Sheets · auto .ics calendar invite.

why it matters

Eventbrite, Splash, and Hopin take 3-7% of every paid ticket and charge subscription fees for the white-label option. For free events (fundraisers, private parties, conferences with sponsor-only revenue, weddings), the platform fees are pure waste. The RSVP form captures attending yes/no, guest count, plus-one names, dietary restrictions, and any custom fields (workshop preference for conferences, song requests for weddings). Webhook to a Notion / Airtable / Google Sheet for the running headcount, plus an automatic confirmation email. Final headcount goes to catering 5-7 days out, same as any platform would deliver.

route the submission

Capture attendance and party

Required: attending yes/no, guest count, plus-one names if applicable. Optional: dietary restrictions, song requests, workshop preference, accessibility needs.

Update the running list

Webhook to a Notion / Airtable / Google Sheet that the host references. Each RSVP appends a row; conditional formatting highlights special diets. Real-time headcount without spreadsheet work.

Confirm via email

Auto-respond with confirmation, event details, and a calendar invite (.ics file). Most guests forget the date once they've RSVP'd — calendar adds reduce no-shows by 30-40%.

§ 03cHTML production notesnative path · deploy · gotchas

What changes when this event rsvp lives in HTML.

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

without splitforms

Plain HTML has no built-in way to deliver a form submission anywhere — the spec only covers serializing fields and either GETting or POSTing them to whatever URL you put in action. Without a backend, the historical fallback is mailto: links (broken on Gmail, Outlook web, and most mobile devices) or PHP on shared hosts (extinct on S3, GitHub Pages, Cloudflare Pages, Netlify-static). That's the gap splitforms fills: you keep using the same <form action method=POST> HTML you already wrote, and the action points at our endpoint instead of a server you'd otherwise have to operate.

deploy notes

Plain HTML deploys to anywhere that serves files: GitHub Pages, S3 + CloudFront, Cloudflare Pages, Netlify, Vercel, plain Apache/nginx, even Dropbox public folders (RIP). The form posts cross-origin from the browser to splitforms.com, so the host is irrelevant to delivery — but enforce HTTPS on your domain, otherwise the browser blocks the mixed-content POST. On GitHub Pages, toggle 'Enforce HTTPS' under Settings → Pages. On S3, terminate TLS at CloudFront. Lock the splitforms access key to your custom domain in the dashboard so a leaked key from View Source is inert elsewhere.

HTML gotcha

method="GET" turns your form into a URL query string

If you forget method="POST" (or omit it — GET is the HTML default), the browser appends form fields to the URL: ?name=Maya&email=…. Splitforms's endpoint returns 405 Method Not Allowed because it only accepts POST. Always specify the method explicitly.

HTML gotcha

Multiple inputs with the same `name` only send the last value

If you accidentally name two fields email, FormData posts both — but the splitforms dashboard shows the last one. For checkbox groups, use name="interests[]" or unique names per checkbox.

HTML gotcha

File inputs require enctype="multipart/form-data"

Standard forms submit as application/x-www-form-urlencoded, which can't carry binary file data. If you add <input type="file">, also add enctype="multipart/form-data" to the form tag — otherwise the file silently doesn't upload.

HTML gotcha

Hidden honeypot field needs to be invisible to bots' DOM parsers

style="display:none" is what splitforms uses, but some sophisticated bots ignore display:none. Stack defenses: display:none + tabindex="-1" + aria-hidden="true" + an off-screen label. Splitforms's classifier catches the rest.

PATTERN A

Pattern A — pure HTML with redirect-on-success

The simplest possible setup: zero JavaScript, full graceful degradation, the browser handles the round-trip. Splitforms 302s to your redirect URL on success, so users always land on a thank-you page even with JavaScript disabled or a flaky network. Use the same wiring for the event rsvp fields on this page.

pattern-a.htmlhtml9 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="redirect"   value="https://yoursite.com/thanks.html" />
04  <input name="name"  required />
05  <input name="email" type="email" required />
06  <textarea name="message" required></textarea>
07  <input type="checkbox" name="botcheck" style="display:none" tabindex="-1" />
08  <button type="submit">Send</button>
09</form>

PATTERN B

Pattern B — HTML with progressive-enhancement fetch

Same HTML, plus a tiny inline <script> that intercepts the submit, posts via fetch, and renders inline status — without a framework. Falls back to native form behaviour if JS fails to load. Use the same wiring for the event rsvp fields on this page.

pattern-b.htmlhtml14 lines

01<form id="cf" action="https://splitforms.com/api/submit" method="POST">
02  <input type="hidden" name="access_key" value="YOUR_ACCESS_KEY" />
03  <input name="email" type="email" required />
04  <textarea name="message" required></textarea>
05  <button type="submit">Send</button>
06  <p id="msg" aria-live="polite"></p>
07</form>
08<script>
09  document.getElementById("cf").addEventListener("submit", async (e) => {
10    e.preventDefault();
11    const r = await fetch(e.target.action, { method: "POST", body: new FormData(e.target) });
12    document.getElementById("msg").textContent = (await r.json()).success ? "Thanks!" : "Try again";
13  });
14</script>

§ 04Field-by-field rundown5 fields · names you POST

What every field actually does.

Each field below ships in the event rsvp template — rename, remove, or add your own. Splitforms accepts any name you POST.

nameREQUIRED

TEXT

Your name

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

placeholder · Jane Builder

emailREQUIRED

Email

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

placeholder · jane@example.com

attendingREQUIRED

SELECT

Will you attend?

Dropdown — keeps responses normalised so you can filter the dashboard.

Yes — count me inMaybeNo, I can't make it

guests

NUMBER

How many guests are you bringing?

Standard input — splitforms accepts whatever you POST under this name.

placeholder · 0

dietary

TEXT

Dietary preferences

Logistics input you'd otherwise gather over email anyway.

placeholder · Vegan, gluten-free, allergies…

§ 05Event RSVP on other frameworks21 frameworks · same backend

One backend. Every framework.

The same event rsvp template works on every framework splitforms supports. Pick yours.

§ 06Questions9 answered

Event RSVP on HTML — FAQ.

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

01Does this event rsvp work on HTML?

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

02How much does the event rsvp cost on HTML?

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 (your name, email, will you attend?, how many guests are you bringing?…) — add, remove, or rename any of them. Splitforms accepts whatever fields you POST.

04How does spam protection work on the event rsvp?

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 HTML as on any other framework.

05Can I send the event rsvp 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 HTML 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 not just use Eventbrite or Splash?

For free events, both charge subscription fees ($30-100/mo for white-label) plus per-ticket fees. The form costs $0, lives on your own domain (which matters for weddings and brand events), and the data is yours — not licensed inside their platform.

08Can I send a calendar invite (.ics) automatically?

Yes — generate an .ics file and attach to the auto-responder. Webhook to a Zapier / Make automation that crafts the .ics with event title, date, location, and notes. Most email clients render the attachment as 'add to calendar' inline.

09How do I handle plus-ones?

Add 'plus-one yes/no' and a name field that appears conditionally. For weddings, the 'plus-one allowed' is invitation-specific — capture invitation code on the form, and the webhook validates whether that invite includes a plus-one before accepting the second name.

§ 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 HTML5 adjacent patterns

Ship a event rsvp on HTML in 60 seconds.

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

Get free access key →Read the docs

founders pricing locked in · early access open

Event RSVP for HTML

Why HTML developers choose splitforms for event rsvp

Yes — this is the shortest safe path for HTML.

Paste the HTML version, then replace YOUR_ACCESS_KEY.

Built for HTML developers who hate operating a backend.

Drop into any HTML project.

Generate, embed, receive.

Generate a free splitforms key

Paste the event rsvp into your HTML project

Receive submissions

The reason this event rsvp exists.

Capture attendance and party

Update the running list

Confirm via email

What changes when this event rsvp lives in HTML.

method="GET" turns your form into a URL query string

Multiple inputs with the same `name` only send the last value

File inputs require enctype="multipart/form-data"

Hidden honeypot field needs to be invisible to bots' DOM parsers

Pattern A — pure HTML with redirect-on-success

Pattern B — HTML with progressive-enhancement fetch

What every field actually does.

Your name

Email

Will you attend?

How many guests are you bringing?

Dietary preferences

One backend. Every framework.

Event RSVP on HTML — FAQ.

splitforms vs everything else.

Other ready-to-ship HTML forms.

Ship a event rsvp on HTML in 60 seconds.