Interactive Product Demos & Workflow Prototypes by Stefan BrkljačićInteractive Product Demos & Workflow Prototypes by Stefan Brkljačić
Interactive Product Demos & Workflow PrototypesStefan Brkljačić
Cover image for Interactive Product Demos & Workflow Prototypes
Give people a working version of your idea they can click through, understand and discuss. I build interactive web demos for early-stage products, AI concepts and business workflows.
DELIVERABLES • A defined primary user journey and screen structure • Responsive UI implemented with React and TypeScript • Interactive states, validation, previews and clear interface copy • Sample-data or simulated flows where live integrations are outside scope • A deployed demo URL, source code and handoff notes
PROCESS We select the core flow, agree on what is real versus simulated, build a reviewable first version, then refine the interactions and test the experience. Delivery dates and revision rounds are agreed after scoping.
EXAMPLES GlasAI: a Serbian-language AI receptionist concept and interactive voice demo. https://www.glasai.online/ Sheetpost: a multilingual spreadsheet-to-invoice prototype covering import, column mapping, validation, structured preview and simulated submission. https://sheetpost-seven.vercel.app/
SCOPE This service is for product demos and frontend prototypes. Production AI infrastructure, live calling, payment systems and regulated submissions require separate technical scoping.
Send your concept, target users, essential journey, existing assets and intended demo date.
FAQs

Contact for pricing
Duration3 weeks
Tags
React
Web Developer
Service provided by
Stefan Brkljačić Belgrade, Serbia
Interactive Product Demos & Workflow PrototypesStefan Brkljačić
Contact for pricing
Duration3 weeks
Tags
React
Web Developer
Cover image for Interactive Product Demos & Workflow Prototypes
Give people a working version of your idea they can click through, understand and discuss. I build interactive web demos for early-stage products, AI concepts and business workflows.
DELIVERABLES • A defined primary user journey and screen structure • Responsive UI implemented with React and TypeScript • Interactive states, validation, previews and clear interface copy • Sample-data or simulated flows where live integrations are outside scope • A deployed demo URL, source code and handoff notes
PROCESS We select the core flow, agree on what is real versus simulated, build a reviewable first version, then refine the interactions and test the experience. Delivery dates and revision rounds are agreed after scoping.
EXAMPLES GlasAI: a Serbian-language AI receptionist concept and interactive voice demo. https://www.glasai.online/ Sheetpost: a multilingual spreadsheet-to-invoice prototype covering import, column mapping, validation, structured preview and simulated submission. https://sheetpost-seven.vercel.app/
SCOPE This service is for product demos and frontend prototypes. Production AI infrastructure, live calling, payment systems and regulated submissions require separate technical scoping.
Send your concept, target users, essential journey, existing assets and intended demo date.
FAQs

Contact for pricing