Fillo Review 2026

Fillo lets coding agents add native, product-embedded forms while Fillo manages validation, uploads, submissions, versions, and delivery.

Fillo is built for product teams that want forms to look and behave like part of their application. A coding agent can generate the integration, while the product team keeps control of the route, components, CSS, and design system. The vendor says its renderer uses no iframe and supports React plus framework-agnostic browser applications, with Vue, Svelte, and Astro named on the homepage. Teams can start with default controls, replace individual fields, or use headless composition. That makes Fillo materially different from a hosted survey link: it handles validation, uploads, responses, versions, and delivery behind a form rendered inside the product.