json → to → csv

Nested objects are flattened to dotted column names, so { "plan": { "tier": "pro" } } becomes a plan.tier column.

Arrays are kept as JSON text in a single cell rather than spread across numbered columns — otherwise one unusually long record widens the entire table.

Columns are the union of every record’s keys, in the order first seen. Records missing a key get a blank cell rather than being truncated.

Everything runs in your browser. Nothing is uploaded, so you can paste data you would not send to a stranger’s server.