Real forms, running on Fillo.
Every one is a live, working form. Fill it out, then read the exact code that renders it — from a one-object form to a fully hand-built layout.
Form defined in code
A complete form written as a plain object, rendered with no visual editor. Includes two custom field types.
Code-firstCustom fields
Your own layout
FilloProvider runs the engine while the page renders every field and the submit button itself.
HeadlessuseField
Job application
A two-page application with contact details, a start date, and a signature.
Multi-pageSignature
NPS survey
A 0–10 score with a follow-up question that only appears for low scores.
Conditional logicLinear scale
Contact form, dark theme
The same SDK restyled with a theme prop to sit on a dark page.
Theming