GST e-Invoice mapping workbench
Prototype a source-to-payload mapping using non-sensitive sample data. Everything runs locally in your browser; no entered data is uploaded. The result is a technical draft, not a production IRP submission or tax advice.
1. Field map
Use dot paths and numeric array indexes, for example items.0.hsn. Blank source paths omit the target field.
| Target payload path | Source JSON path |
|---|
2. Source invoice JSON
3. Generated payload
Load the example or replace it with non-sensitive test data.