Fillo

Fillo is form infrastructure that stays out of the page: validation, uploads, responses, versions and delivery live behind an API, and the fields render in your own React, Next.js, Vue, Svelte, Astro or plain HTML. Your route, components, spacing and account context stay yours — there is no iframe. A coding agent can provision the form through an agent skill; the visual editor and code-defined workflows are there too. Files can go browser-direct to Drive, Box, S3 or R2 while the response stays in Fillo.