Sparklis is a Semantic Web tool that helps users explore SPARQL endpoints by guiding them in the interactive building of questions and answers, from simple ones to complex ones. It combines the fine-grained guidance of faceted search, most of the expressivity of SPARQL, and the readability of (controlled) natural languages. No endpoint-specific configuration is necessary, and no knowledge of SPARQL and the data schema is required from users. This demonstration paper is a companion to the research paper [2] .