> For the complete documentation index, see [llms.txt](https://docs.pentaho.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.pentaho.com/pdia-data-integration/10.2-data-integration/pdi-transformation-steps-reference-overview/json-input/options-json-input/fields-tab/select-fields.md).

# Select fields

Click **Select Fields** in the **Fields** tab to open the Select Fields window. Select the checkbox next to each field in your source file that you want include in your output. All the fields selected in this step are added to the table. You can search for a field name by entering the field name in the **Search** box.

![Select fields](/files/iMmbuFqfx6slCnpPsoJ4)


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