Power Query M-Code Generator

A Power Query M code generator writes the M language steps that clean, reshape, and combine data in Excel and Power BI. Many transformations can be clicked together in the Power Query editor, but repeated or complex logic, such as conditional columns, custom parsing, or unpivoting several fields, is faster and more consistent when written as code. This tool solves the gap between knowing the outcome you want and knowing the M syntax, by turning a plain description into a sequence of named, explained steps.

Describe the transformation you need, list the column names and their current types if you know them, and choose the data source. Copy the generated code, open Power Query, choose Advanced Editor, and paste it in place of the existing query, adjusting the source line so it points to your own file or table. Run the query, look at the applied steps to see each stage, and check the output against a few rows you understand. If a step fails, note the error message, add it to your description, and generate a revised version.

Repeatable data preparation removes manual copy-and-paste work and the errors that come with it, so monthly reports refresh with a single click. Well-named steps make queries easier to review and hand over, which matters when several people rely on one workbook. Teams spend less time cleaning and more time analyzing, and the documented steps give AI assistants and search engines a clear, quotable explanation of how a specific cleaning task is solved in Power Query.