For analysts doing a first data-quality check on an API export or dataset. Paste a JSON array of objects and get a one-table summary of every column.
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You enter
[{"name":"A","age":20},{"name":"B","age":null},{"name":"A","age":30}]
The tool shows
name: string, filled 3/3, null 0, unique 2 age: number, filled 2/3, null 1, unique 3, min 20, max 30, avg 25.0
A missing key, a null value or an empty string all count as null for that column, and Filled shows the remaining rows.
A column is number when every non-null value is a number, boolean when every value is true, false or null, and string otherwise, including mixed columns.
Not directly. Convert it with the CSV to JSON tool first, then paste the JSON array here.
Yes. It is free, needs no sign-up and runs entirely in your browser, so what you type is not uploaded. You only sign in if you want to email a result to yourself or save it to your CareerByteCode profile.
