splitforms.com
WAITLIST · CARRD

Waitlist for Carrd

Pre-launch capture form with optional referral source. Free for 500 submissions per month — no backend, no SDK, no plugin.

500/mo free·no card·drop-in for Carrd
form.htmlhtml23 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 waitlist signup">
04
05 <label for="email">Email *</label>
06 <input id="email" type="email" name="email" placeholder="you@example.com" required>
07 <label for="name">Name</label>
08 <input id="name" type="text" name="name" placeholder="Optional">
09 <label for="referral">How did you hear about us?</label>
10 <select id="referral" name="referral">
11 <option value="">Choose…</option>
12 <option>Twitter</option>
13 <option>Friend</option>
14 <option>Search</option>
15 <option>Newsletter</option>
16 <option>Other</option>
17 </select>
18
19 <!-- honeypot — bots fill every field -->
20 <input type="checkbox" name="botcheck" style="display:none" tabindex="-1" autocomplete="off">
21
22 <button type="submit">Send</button>
23</form>
500
submissions / mo, free
3
fields, ready to ship
5
code outputs
60s
from copy to inbox
§ 00Carrd + Waitlistplatform-specific integration guide

Why Carrd developers choose splitforms for waitlist

Carrd's embed element lets you inject custom HTML into your one-page site — perfect for a lightweight contact form. Carrd Pro includes a native form feature, but it caps submissions at 100/month on paid plans and lacks webhook delivery. The waitlist on this page drops into a Carrd embed, posts to splitforms, and gives you 500 dashboard submissions/month free; Starter adds Slack/Discord notifications. No Carrd Pro upgrade needed for the form to work. The HTML is self-contained — Carrd's minimal runtime handles the display, splitforms handles the backend.

§ 00Quick answerHTML · marketing

Yes — this is the shortest safe path for Carrd.

Use the HTML snippet on this page, keep the waitlist fields visible in your Carrd 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 email, name, how did you hear about us?. Required fields are email.

native carrd reality

Carrd's Form widget requires Pro Standard ($19/year) just to exist on the page, and even then it doesn't deliver email itself — the form 'works' by posting to an external integration: Mailchimp, SendGrid, Basin, Formspree, etc.

use case fit

Pre-launch waitlists let you capture demand before the product ships. The multi-step form qualifies the use case so launch-day conversions skew toward the highest-intent signups.

§ 01Waitlist × Carrdwhy this combination, in 80 words

Built for Carrd developers who hate operating a backend.

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

Splitforms is the form backend for Carrd 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 · 23 lines

Drop into any Carrd project.

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

form.htmlhtml23 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 waitlist signup">
04
05 <label for="email">Email *</label>
06 <input id="email" type="email" name="email" placeholder="you@example.com" required>
07 <label for="name">Name</label>
08 <input id="name" type="text" name="name" placeholder="Optional">
09 <label for="referral">How did you hear about us?</label>
10 <select id="referral" name="referral">
11 <option value="">Choose…</option>
12 <option>Twitter</option>
13 <option>Friend</option>
14 <option>Search</option>
15 <option>Newsletter</option>
16 <option>Other</option>
17 </select>
18
19 <!-- honeypot — bots fill every field -->
20 <input type="checkbox" name="botcheck" style="display:none" tabindex="-1" autocomplete="off">
21
22 <button type="submit">Send</button>
23</form>
§ 03Setup3 steps · 60 seconds · zero config

Generate, embed, receive.

Three actions stand between you and your first waitlist submission. None of them require a backend, a database, or a CAPTCHA library.

STEP 01GENERATE

Generate a free splitforms key

Sign in at splitforms.com — your access key is created instantly. No credit card, no setup wizard, no SDK to install.

Create your form
key=sk_live_••••••••
STEP 02EMBED

Paste the waitlist into your Carrd project

Drop the form snippet into a Carrd 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 waitlist signup
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?
§ 03bWaitlist Signup Form (Pre-Launch Lead Capture)template-specific playbook

The reason this waitlist exists.

Multi-step (Typeform-style) · webhooks into Loops / ConvertKit / Beehiiv.

why it matters

Waitlists are the cheapest growth tool a pre-launch product has — Superhuman, Notion, and Linear all built sizable waitlists before paid launch. The form captures email plus a question or two on use case ('what would you use this for?', 'what tools do you use today?') so the launch sequence segments by intent. Multi-step flow boosts completion vs a single form — the prospect commits in step 1 and answers the qualifying questions in step 2-3 with momentum. Push waitlist signups to a dedicated ESP audience (Loops, ConvertKit, Beehiiv) so launch-day emails segment by use case and target the highest-intent signups first.

route the submission
01

Step 1: capture email

Single email field — keep step 1 frictionless. Loss-rate from email-only is near-zero; once the email is in, momentum carries through later qualifying questions.

02

Step 2-3: qualify use case

One or two questions on use case ('what problem brings you here?', 'what tools do you use today?'). Optional but most users complete because they're invested by step 2.

03

Push to ESP segment

Webhook to Loops / ConvertKit / Beehiiv / Mailchimp into a 'waitlist' audience. Launch-day emails segment by use case so the highest-intent signups get the first invite waves.

§ 03cCarrd production notesnative path · deploy · gotchas

What changes when this waitlist lives in Carrd.

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

without splitforms

Carrd's Form widget requires Pro Standard ($19/year) just to exist on the page, and even then it doesn't deliver email itself — the form 'works' by posting to an external integration: Mailchimp, SendGrid, Basin, Formspree, etc. So the question isn't 'native vs splitforms' but 'which third-party backend do you wire up?'. Mailchimp is overkill (and surprisingly expensive once your list grows); Basin and Formspree limit free submissions; SendGrid requires DNS verification. Splitforms is the same shape of integration (Type: Custom, Method: POST, Action: a URL) at a better free tier and with built-in spam filtering. Carrd's Form widget settings don't change.

deploy notes

Carrd publishes to a *.carrd.co subdomain on every plan; Pro Standard adds a custom domain. The form posts to splitforms from the browser, so neither subdomain nor custom domain matters for delivery. Lock the splitforms access key to BOTH the *.carrd.co URL and your custom domain — Carrd serves the same content under both, with different Origin headers. Carrd's Designer preview never actually POSTs; you have to publish (free) and submit from the live URL to test. Embed elements bypass Carrd's CSS, so the form will look browser-default unless you inline styles.

Carrd gotcha

Pro Standard plan still required for Custom form Type

Carrd's free plan and Pro Lite don't expose the Form widget at all. Pro Standard ($19/yr) unlocks the Form widget with Type → Custom. Splitforms doesn't change Carrd's plan requirements — it just fills in the backend that Carrd doesn't ship.

Carrd gotcha

Embed element forms don't inherit Carrd's site styles

If you paste raw HTML via an Embed element, your form will look like browser-default — no Carrd typography, no site colors. Use the native Form widget for styling, then add a hidden access_key field via Custom fields.

Carrd gotcha

Carrd's success message + splitforms redirect can fight each other

Carrd's Form widget has a built-in success message that shows on 2xx response. If you also set a redirect field in the form, the user sees the success blip then redirects mid-message. Pick one: redirect via splitforms OR Carrd's success text.

Carrd gotcha

The form widget's Field labels don't match input names by default

Carrd uses friendly labels like 'Your name', but the actual input name attribute is name-1 or similar unless you set Custom in the field settings. Set the Custom name to name, email, message — splitforms uses the input names as keys in your inbox.

PATTERN A

Pattern A — native Form widget set to Custom type

In the Form widget's settings, set Type to Custom, Method to POST, Action to the splitforms URL. Add a hidden field access_key via the Custom Fields tab. Carrd handles the styling and mobile layout; splitforms handles delivery. Use the same wiring for the waitlist fields on this page.

pattern-a.htmlhtml8 lines
01<!-- Carrd auto-generates this on publish: -->
02<form action="https://splitforms.com/api/submit" method="POST">
03 <input type="hidden" name="access_key" value="YOUR_ACCESS_KEY" />
04 <input type="text" name="name" placeholder="Name" required />
05 <input type="email" name="email" placeholder="Email" required />
06 <textarea name="message" placeholder="Message" required></textarea>
07 <button type="submit">Submit</button>
08</form>
PATTERN B

Pattern B — Embed element with full HTML control

Drop an Embed element into a Carrd section and paste raw HTML. Loses Carrd's auto-styling but lets you add a honeypot, multi-field validation, or custom redirect. Useful for waitlist or job-application forms that exceed the Form widget's capability. Use the same wiring for the waitlist fields on this page.

pattern-b.htmlhtml9 lines
01<form action="https://splitforms.com/api/submit" method="POST" style="display:grid;gap:8px;max-width:380px;">
02 <input type="hidden" name="access_key" value="YOUR_ACCESS_KEY" />
03 <input type="hidden" name="redirect" value="/thanks" />
04 <input name="name" placeholder="Name" required />
05 <input name="email" type="email" placeholder="Email" required />
06 <textarea name="message" placeholder="What's up?" required></textarea>
07 <input type="checkbox" name="botcheck" style="display:none" tabindex="-1" />
08 <button type="submit">Send</button>
09</form>
§ 04Field-by-field rundown3 fields · names you POST

What every field actually does.

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

emailREQUIRED
EMAIL

Email

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

placeholder · you@example.com
name
TEXT

Name

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

placeholder · Optional
referral
SELECT

How did you hear about us?

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

TwitterFriendSearchNewsletterOther
§ 06Questions9 answered

Waitlist on CarrdFAQ.

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

01Does this waitlist work on Carrd?
Yes. The form is plain HTML with a single POST endpoint, so it runs on any Carrd site without server-side code, plugins, or SDKs. Drop the snippet into a Carrd page or component and submissions land in your splitforms dashboard.
02How much does the waitlist cost on Carrd?
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 (email, name, how did you hear about us?…) — add, remove, or rename any of them. Splitforms accepts whatever fields you POST.
04How does spam protection work on the waitlist?
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 Carrd as on any other framework.
05Can I send the waitlist 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 Carrd 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.
07Should I show waitlist position / numbers?
Showing 'you're #347 in line' on the confirmation creates social proof but invites comparison. Showing total waitlist size ('join 2,500 people on the waitlist') without per-person position is the safer middle. Refer-a-friend mechanics that move people up the list (Robinhood-style) drive viral growth but require more eng work.
08How do I trigger launch invites in waves?
Tag waitlist signups by use case in the ESP audience (Loops, ConvertKit). Launch-day, segment by tag and send invite waves over 48-72 hours. Highest-intent / closest-fit goes first; broadest casts go last. Spreads server load and lets you triage onboarding support.
09Can I integrate with Loops / ConvertKit / Beehiiv?
Yes — webhook the JSON. Loops has direct webhook support and is purpose-built for product transactional + waitlist email. ConvertKit and Beehiiv accept via API or Zapier. All three handle the launch-sequence segmentation cleanly.
§ 07Comparisonvs Web3Forms · vs Formspree

splitforms vs everything else.

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

FeatureWeb3FormsFormspreesplitforms
Free monthly submissions25050500
Custom fields beyond contactYesPro tierFree
Webhooks (Slack / Discord)Pro tierPro tierFree, signed
AI / MCP submission inboxNoNoYes
Long-term plan (3-year flat)$59 every 3 years
✻ ✻ ✻

Ship a waitlist on Carrd in 60 seconds.

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

Get free access key →Read the docs
founders pricing locked in · early access open