Low-code platforms have gained popularity for accelerating complex software engineering tasks through visual interfaces and pre-built components. Software language engineering, specifically language composition, is such a complex task requiring expertise in composition mechanisms and language workbenches multi-dimensional language constituents (syntax and semantics). This paper presents an extensible low-code platform with a graphical web-based interface for language composition. It enables composition using language components, facilitating systematic composition within language families promoting reuse and streamlining the management, composition, and derivation of domain-specific languages.