CSV Type & Null Ratio Profiler
Inspect CSV columns for blanks, numeric values, booleans, and inferred types.
Processing stays in your browser. Blank cells count as empty, not database NULL. Type inference uses the observed sample and treats ambiguous values as text.
How to use the csv type & null ratio profiler
Inspect CSV columns for blanks, numeric values, booleans, and inferred types. Complete the csv with header row fields above, or upload a UTF-8 text file for the first field. Choose Run tool, review the output, then copy or download the result.
Example
One blank age among two rows produces a 50% empty ratio.
Good to know
Blank cells count as empty, not database NULL. Type inference uses the observed sample and treats ambiguous values as text.