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Missingness Pattern Explorer
Profile missing values and co-missing patterns in bounded CSV or flat JSON data, entirely in your browser.
Descriptive only: missingness patterns and pair metrics do not establish causes, randomness mechanisms, bias, or an appropriate imputation strategy.
Data
Missing-value rules
Filters
Summary
Load data to begin.
Row completeness
Per-column missingness
| Column | Missing | Percent | Absent keys | Present nulls |
|---|
Exact missingness patterns
Pattern columns list fields that are missing. Rare overflow patterns are combined into a tail bucket.
| Pattern | Rows | Percent |
|---|
Co-missing pairs
Jaccard = both missing / either missing. Phi is a descriptive binary association and can be undefined when a margin has no variation.
| Columns | Both missing | Jaccard | Phi |
|---|
UpSet-like pattern view
Top patterns only; accessible values are also available in the pattern table.
Missingness preview
M = missing, P = present. Preview capped at 200 rows and 50 columns.