Is there any Azure provided tool for visualization of graph data stored in Azure CosmosDB? If I search on this , I get third party tools that connect to Azure CosmosDB that one needs to buy. Isn't there any such tool provided by Azure itself or at least Microsoft based?
There aren't any graph visualization tools produced by Microsoft.
However there are graph visualization tools recommended by the Tinkerpop community to choose from. Some are open source and do not need to buy.