Formarium
A SaaS for building online surveys and forms with Typeform's respondent experience and Google Forms' simplicity: one question per screen, smooth transitions and keyboard shortcuts for whoever answers, while the author just writes the questions and publishes without touching a single setting. Twelve question types, conditional logic written as a single line, themes with hue, textures and images, stats already calculated including per-question drop-off, and CSV export. A free plan with no cap on responses, a Pro subscription through Stripe, and a fully bilingual interface and runner.
I designed and built the whole product: the public runner with autosave and resume, the builder with reordering and continuous saving, the conditional-logic engine shared between browser and server, the theming system, image uploads to private storage with signed URLs, plans and the Stripe subscription, the bilingual SEO infrastructure and the deployment.









