Turn a local JSON object or record array into a downloadable CSV. Preview the union of its columns, preserve string identifiers, and keep nested values in one JSON cell.
Converted records
2 rows × 4 columnsLOCAL DATA PREVIEWFIRST 2 DATA ROWS · 2 TOTAL
| sku | price | color | size |
|---|---|---|---|
| 00123 | 29 | red | empty |
| 00456 | 39 | empty | M |
Protected formula-like text is visible with its leading apostrophe. Nested values stay in one JSON text cell.
KEEP THE CATALOG IDENTIFIERS
Convert the data shape without inventing product facts. A union header keeps later-record fields, and a visible preview makes missing cells easy to spot.
THE FIELD NOTES
Use the result now, then read the practical notes for assumptions, examples, limitations, and the choices behind it.
SKU strings 00123 and 00456 remain intact; the absent color or size cells are empty.
Columns follow JavaScript property order within each record, with integer-like keys sorted first. New keys from later records are appended. Nested objects and arrays stay as JSON text in one cell. Missing values and null become empty cells. Duplicate JSON keys follow the parser’s last-value rule.
String values keep their leading zeros. CSV text beginning with a spreadsheet formula character is prefixed with an apostrophe, including header text; the preview and exported CSV show that protection. Numeric negatives remain numbers.
Use the google sheets purchase order generator when the converted records become a purchasing document. For supplied product facts that need readable listing copy, use the product description generator after checking the table.
No API is called. Paste or choose a local JSON file of at most 250 KB. Quote long numeric identifiers as strings; unsafe or over-precise JSON numbers are rejected rather than silently rounded.
THE PRODUCT IS NEXT
Columns follow JavaScript property order within each record, with integer-like keys sorted first. New keys from later records are appended. Nested objects and arrays stay as JSON text in one cell. Missing values and null become empty cells. Duplicate JSON keys follow the parser’s last-value rule.
String values keep their leading zeros. CSV text beginning with a spreadsheet formula character is prefixed with an apostrophe, including header text; the preview and exported CSV show that protection. Numeric negatives remain numbers.
Use the google sheets purchase order generator when the converted records become a purchasing document. For supplied product facts that need readable listing copy, use the product description generator after checking the table.
No API is called. Paste or choose a local JSON file of at most 250 KB. Quote long numeric identifiers as strings; unsafe or over-precise JSON numbers are rejected rather than silently rounded.
Columns follow JavaScript property order within each record, with integer-like keys sorted first. New keys from later records are appended. Nested objects and arrays stay as JSON text in one cell. Missing values and null become empty cells. Duplicate JSON keys follow the parser’s last-value rule.
String values keep their leading zeros. CSV text beginning with a spreadsheet formula character is prefixed with an apostrophe, including header text; the preview and exported CSV show that protection. Numeric negatives remain numbers.
No API is called. Paste or choose a local JSON file of at most 250 KB. Quote long numeric identifiers as strings; unsafe or over-precise JSON numbers are rejected rather than silently rounded.
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