Drop a file in and this reads every column: what type it really is, what fraction is missing, how the values are spread, which ones look like keys, and which look like mistakes. Then it writes the data dictionary for you. Nothing leaves your browser. There is no server here to send it to.
Drop a .csv or .tsv anywhere on this page — or paste raw text below.
| Column | Inferred type | Missing | Distinct | Distribution | Summary |
|---|