Select Columns
Keep only specific columns/fields from a JSON array of objects. Everything runs on your device — nothing is sent to a server.
The result will appear here…
or press Ctrl+Enter
Everything runs in your browser. Your data is never sent to our servers.
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Example
Example Input
[{"id":1,"name":"Aji","x":9}] (id, name)Example Output
[{"id":1,"name":"Aji"}]How to Use
- 1Paste your data into the Input field.
- 2If the tool has "More settings" (mode, query, columns, etc.), set them as needed.
- 3Click the button (or press Ctrl+Enter) to process.
- 4Copy the result with the Copy button.
About Select Columns
Select Columns trims each object in a JSON array to keep only the fields you list — like SELECT col1, col2 in SQL.
It is useful for dropping unneeded fields, shrinking data size, or preparing data for CSV export with only certain columns.
Enter a comma-separated list of columns. Processed entirely in the browser.
FAQ
Is my data sent to a server?
No. Select Columns runs entirely in your browser using client-side libraries. Your data never leaves your device.