Forms

Build contact and sign-up forms and collect what visitors send, without a separate form service.

Marketing and commerce

Who offers it

Platforms are grouped by the cheapest way to get this feature.

Free

Costs nothing: open source or a free plan.

HubSpot Content Hub Form builder in the free CMS, tied to the HubSpot CRM
Joomla Core Contacts component with contact forms
Payload Form Builder plugin with field types, stored submissions, confirmation emails and a payment field
Webflow Native forms; the free Starter plan caps submissions at 50, paid plans are unlimited, file upload needs a higher tier

Included

Part of the cheapest paid plan.