Kai CSV Profiler lets you paste a CSV and get an immediate, consistent profile of the data. It is designed as a quick check and can also be used by agents, though no MCP client is required to try it.
There are limits: UTF-8 CSV up to 32 KiB, 5,000 rows and 64 columns. The service says it does not store submitted data, only aggregate usage counts, but you should still avoid pasting secrets.
