Replace HubSpot Forms,
keep HubSpot
You don't have to choose between your CRM and your frontend. Fieldpost gives you full control of markup and UX, then syncs every submission to HubSpot behind the scenes.
Your markup, not an iframe
The HubSpot embed injects its own styles and layout. Fieldpost is headless — your design system, your components, your Lighthouse score.
~200KB lighter
The HubSpot forms script weighs hundreds of kilobytes. The Fieldpost embed is 959 bytes gzipped — or zero bytes with the React hook.
Spam-filtered before HubSpot
Email validation, bot detection, and rate limiting run first — so junk contacts never pollute your CRM or trigger your workflows.
How the sync works
Enable the HubSpot integration on your form; accepted submissions are forwarded to the HubSpot Forms API and become contacts as usual. Your existing workflows, lists, and attribution keep working.
curl -X PATCH https://api.fieldpost.dev/v1/manage/forms/me \
-H "Authorization: Bearer YOUR_SECRET_KEY" \
-H "Content-Type: application/json" \
-d '{
"integrations": [{
"type": "hubspot",
"enabled": true,
"config": {
"access_token": "YOUR_PRIVATE_APP_TOKEN",
"portal_id": "12345678",
"form_guid": "abcd-ef01-…"
}
}]
}'What you give up
HubSpot's drag-and-drop form builder, progressive fields, and native cookie-based analytics tracking. If marketers build your forms without engineers, the HubSpot builder may still be the right tool. If engineers own the frontend and HubSpot is the system of record, Fieldpost is the cleaner architecture.
Your forms. Your frontend. HubSpot still gets the lead.
One endpoint, one access key, zero backend code. Free tier included.
Start building →