CSV Dataset Profiler

Find missing values, distinct counts, inferred types and numeric statistics in a CSV dataset.

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Private by designProcessed locally · Originals unchanged

Choose local input and settings.

Preview & downloads

Your result will appear here

Choose a file, adjust the settings and select Analyze File.

How to use, limits & privacy

Choose a table with unique nonempty headers. Download the JSON report to review missing values, distinct nonblank values and numeric min/max/mean per column. Whitespace-only cells count as missing. Types are heuristic; browser floating-point statistics can round large or precise numbers. No source cells are modified.

Text: UTF-8 only, 4 MiB; CSV: 50,000 data records, 200 columns, 500,000 cells; exports: 16 MiB.

Inputs are never uploaded. Results are rendered as text or a locally generated image. Original files remain unchanged. Changing input invalidates previous results.