Step 1
In HubSpot, go to Settings → Integrations → Private Apps, create a Private App with crm.objects.contacts.write scope, and copy the access token.
Integration · HubSpot
Send form submissions to HubSpot.
Send form submissions to HubSpot as contacts.
- 500 free / mo
- No credit card
- Live in minutes
Form submissions, routed automatically
splitforms connects your forms to HubSpot and moves every submission across the moment it's received — no manual export, no copy-paste.
Your leads are never lost
Every submission is emailed to you and saved to a searchable dashboard, so the lead is captured even if HubSpot is unreachable.
No per-integration fees
Connecting HubSpot to your forms is included in your plan — no add-on charge and no per-message billing from splitforms.
Example: form markup
Send form submissions to HubSpot from plain HTML.
The form posts to https://splitforms.com/api/submit. The HubSpotrouting is configured in the splitforms dashboard against the form's access key — there's no client-side HubSpot-specific code in your HTML.
<form action="https://splitforms.com/api/submit" method="POST">
<input type="hidden" name="access_key" value="YOUR_SPLITFORMS_KEY" />
<input type="hidden" name="_route" value="hubspot" />
<input type="email" name="email" placeholder="you@example.com" required />
<textarea name="message" placeholder="Your message" required></textarea>
<button type="submit">Send to HubSpot</button>
</form>How it works
How to send form submissions to HubSpot.
Here's how to send form submissions to HubSpot in 6 steps — no code required, and most teams finish in a couple of minutes.
Step 2
Build a relay endpoint (Cloudflare Worker, Vercel function, or any small HTTP service) that receives the splitforms webhook and POSTs to https://api.hubapi.com/crm/v3/objects/contacts with the contact's email, name, and any other captured fields as properties.
Step 3
Paste the relay URL into the form's Webhooks tab in splitforms.
Step 4
Submit a test entry. A new contact should appear in HubSpot within a couple of seconds. Confirm the email matches what was submitted.
Step 5
Optional: associate the contact with a Deal or Company via additional /associations endpoints inside the relay, so new leads land in the right pipeline.
Step 6
Optional: enrich the relay with HubSpot list memberships so contacts are auto-added to the 'Website Inbound' or similar list for nurture campaigns.
How teams use it
How do teams send form submissions to HubSpot?
Use a HubSpot Private App access token and the CRM v3 contacts endpoint to create or update a contact for every submission. splitforms POSTs the submission via webhook through a small relay (or Zapier) that calls HubSpot. Prefer a plainer destination? The same form can also send form submissions to email or forward them to any webhook.
- Delivered via webhook + relay (or Zapier / Make)
- B2B SaaS sales teams capturing demo requests and creating contacts in HubSpot with a 'Demo Requested' lifecycle stage.
- Marketing teams running gated content forms — each download becomes a HubSpot contact tagged by asset.
Why splitforms
Do you need a separate tool to send form submissions to HubSpot? No.
HubSpot's hosted forms are free but force you to embed a HubSpot script; splitforms keeps the form fully yours. splitforms is free for 500 submissions per month, $5/mo on Pro, or $59 for a 3-year plan (15,000 submissions/month, 36 months of access), with no per-integration add-on fees.
- Customer success teams with support forms that create or update contacts and add a ticket via HubSpot's tickets API.
- Recruiting teams using HubSpot as a candidate CRM (less common, but workable) — each application creates a contact tagged by role.
- Newsletter signup forms whose subscribers become HubSpot marketing contacts ready for sequence emails.
How SplitForms works
From form to workflow in 3 simple steps.
Connect your form, collect every submission, and send data where it needs to go — without building backend infrastructure.
Add your endpoint
Point your form to your unique SplitForms endpoint. That's it.
Receive submissions
We instantly capture and organize every submission in your inbox.
Route anywhere
Send data to email, spreadsheets, CRMs, webhooks, and 7,000+ apps.
No credit card required. Set up in under 60 seconds.
Connect & automate
Connect your favorite tools and automate everything
SplitForms works with the destinations you route to and the platforms you build on — from Slack and Sheets to WordPress, Shopify, and Next.js.
Trusted by indie teams and agencies shipping forms worldwide
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Testimonials
Loved by developers shipping at every scale.
40 quotes on record — from indie hacks to agency migrations.
“I replaced a Lambda + DynamoDB + SES contact form with six lines of HTML. It took eleven minutes, and the dashboard is better than what I was going to build.”
“We migrated 14 client sites off Formspree in a single weekend. The price is a third of what we paid, the API is more honest, and the spam filter actually works.”
“The webhook payload is signed, idempotent, and well-shaped. It reads like code from a competent team, not a CRUD app held together with duct tape.”
“I stopped reaching for Typeform on small marketing sites. splitforms covers 90% of the use case at none of the bloat.”
“I onboarded our whole agency in an afternoon. The MCP integration meant Cursor literally dropped the form straight into our client repos for us.”
“The free plan gave me 500 submissions before I paid a cent, and Pro is five dollars a month. I've spent more on coffee deciding which backend to use.”
“Spam went from forty junk entries a day to zero, with no reCAPTCHA puzzle ruining the form. The honeypot and time-trap just quietly do their job.”
“Point the form action at one endpoint and you're done. No SDK, no client library, no build step. This is how a form backend should feel.”
“Leads land in Slack the second someone submits, and a copy goes to Google Sheets for the sales team. I wired both up in under ten minutes.”
“I run a static Hugo site on a five-dollar VPS. splitforms gave it a real contact form without me standing up a single server.”
Common questions
HubSpot form integration questions.
View all FAQsDoes splitforms have a native HubSpot integration?
Today, no — splitforms reaches HubSpot via outbound webhooks plus a small relay (or via Zapier/Make). That's the honest answer; a one-click HubSpot OAuth connector is on the roadmap. The webhook-relay route is reliable in production today and unlocks on Pro ($5/month) and above.
Can I create or update existing contacts (upsert)?
Yes. HubSpot's create endpoint returns 409 if a contact with the same email exists. The relay should catch the 409, then PATCH the existing contact at /crm/v3/objects/contacts/{id}. This avoids duplicate contacts when the same person submits twice.
Will this work with HubSpot Free?
Yes. Private apps and the contacts API are available on HubSpot's free CRM tier. You don't need a paid HubSpot plan to ingest form submissions — only to use advanced marketing automation features downstream.
What about HubSpot's own forms — why not just use those?
HubSpot forms ingest cleanly into HubSpot, but the form itself is hosted by HubSpot, which limits design control and adds a script tag to your site. splitforms keeps the form 100% your HTML, owned by you, and the data flows into HubSpot at the backend. You also keep the option to send the same submission to other destinations (Slack, email).
How do I avoid the relay becoming a single point of failure?
splitforms always sends the submission to email and saves it in the dashboard regardless of webhook outcome, so even if the relay is down, the lead is captured — a failed delivery is recorded as the webhook's last status (deliveries aren't auto-retried today, so you can re-check and fix the relay). Run the relay on a serverless platform with high availability (Workers, Vercel) and you'll rarely see a missed delivery.
Can I trigger a HubSpot workflow from this?
Yes. Set a property on the contact (e.g. 'website_form_submitted = true') and create a HubSpot workflow that triggers when that property updates. This gives you sequence enrolment, internal notifications, and lifecycle-stage updates.
Simple pricing
Start free. Scale when you need more.
Choose a plan that fits your workflow — from a free form endpoint to full automations, exports, and higher submission limits.
Free
$0
Free forever
For side projects and indie devs.
- 500 submissions / mo
- Unlimited forms
- Email notifications included
- Honeypot spam filtering
- Submissions dashboard
- MCP setup stays free
- No credit card required
Most Popular
Pro
$5/ month
was $15 · save 67% · new-user price
For agencies and growing products.
- 5,000 submissions / mo
- Unlimited forms
- Every paid feature included
- Priority support (under 4hr)
- 10× free submission volume
- Cancel anytime
Pre-launch · founders pricing locked in
3-Year
$59/ 36 months
was $99 · save 40% · new-user price
Pay $59. 3 years sorted.
- 15,000 submissions / mo
- Unlimited forms
- Everything in Pro
- Renews every 3 years
- Long-term discount
- Priority support included
- Vote on the roadmap
No credit card required on Free • Cancel anytime