Kibana offers nearly 20 different visualization types, but for those seeking more customization, the Vega and Vega-Lite frameworks provide powerful tools for extending its capabilities beyond standard options. Since version 6.2, users can create custom visualizations within Kibana using these JSON-based declarative languages, eliminating the need to build separate plugins. Vega is a comprehensive visualization grammar that allows for precise control over visual designs, while Vega-Lite provides a simpler syntax for rapid visualization creation, though it has limitations such as the inability to create complex visualizations like Sankey charts. The article illustrates the use of these frameworks through examples, including a basic bar chart and a more advanced Sankey chart, highlighting the importance of understanding Elasticsearch and Kibana, as well as basic JSON skills, for effectively leveraging these tools.