Parse a JSON String Column in Power Query M

Parses a column that holds a JSON string (not yet nested records) into structured data.

API & Web DataIntermediatejsonparsetextstring

Power Query M code

let
    Source = YourTable,
    AddedParsedJson = Table.AddColumn(Source, "ParsedJson", each Json.Document([JsonTextColumn]))
in
    AddedParsedJson

Tidy JSON with the JSON Formatter

Notes

ParsedJson will contain records or lists depending on the JSON's shape; expand it the same way you would after Json.Document(Web.Contents(...)).

Requirements

How to use this snippet

  1. In Power BI Desktop, choose Transform data to open Power Query, then open the Advanced Editor on a query (or start from a blank query).
  2. Paste the snippet and replace the placeholder names (tables, columns, file paths) with your own. Check the requirements above first.
  3. Run it through the Power Query M Formatter to tidy the layout.

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