Four Ems — build multi-page forms with conditional logic

Four Ems is a self-hosted form builder. Design a form across several pages, show and hide questions based on earlier answers, share it with a link, and collect the responses. No account, and nothing to install.

What you can build

• Multi-page forms that stay readable instead of one endless scroll.
• Conditional logic — questions appear only when they are relevant.
• Validation per field, with error messages people can act on.
• Embeddable forms, for dropping into a page you already have.

How it works

• Build the form in the browser; it saves as you go.
• Preview it exactly as a respondent will see it.
• Publish, and share the link that gets generated.
• Read responses back in the app, or export them.

Self-hosted means your responses live wherever you deploy it, not on someone else's platform.