GeniusTex is a smart textiles innovation platform that uses semantic technologies to enable collaboration across the complex smart textiles value chain. The platform provides a common language through an ontology that describes relationships between materials, components, and processes. This allows manufacturers, inventors, developers and end users to connect and work together. Users can upload ideas and component specifications to access suitable products and suppliers. The configurator tool allows adapting ideas into functional products through configuration and collaboration. The platform was validated by developing a smart pillow prototype and defining its component modules and production process. GeniusTex aims to scale smart textiles production by connecting the value chain and bringing the industry from niche to mainstream.