JSON to CSV
Convert a JSON array of objects into CSV text.
POST
1 credit
/v1/convert/json-to-csv
curl -X POST "https://convert.toolkitapi.io/v1/convert/json-to-csv" \
-H "Content-Type: application/json" \
-H "Authorization: Bearer YOUR_API_KEY" \
-d '{"data": [{"name":"Alice","age":30},{"name":"Bob","age":25}], "include_header": true}'
import httpx
resp = httpx.post(
"https://convert.toolkitapi.io/v1/convert/json-to-csv",
json={"data": [{"name":"Alice","age":30},{"name":"Bob","age":25}], "include_header": true},
)
print(resp.json())const resp = await fetch("https://convert.toolkitapi.io/v1/convert/json-to-csv", {
method: "POST",
headers: {
"Content-Type": "application/json",
},
body: JSON.stringify({"data": [{"name":"Alice","age":30},{"name":"Bob","age":25}], "include_header": true}),
});
const data = await resp.json();
console.log(data);# See curl example
Response
200 OK
{
"csv": "name,age\nAlice,30\nBob,25\n",
"rows": 2,
"columns": 2
}Description
Convert a JSON array of objects into CSV text.
How to Use
1
1. POST a JSON array of flat objects in `data`.
2
2. Optionally set `delimiter` and `include_header`.
3
3. Read the `csv` string from the response.
About This Tool
Converts a JSON array of objects into a CSV string. Object keys become column headers (the union across all objects), preserving insertion order. Nested objects are flattened with dot-notation keys.
Why Use This Tool
- Exports — Produce CSV downloads from API responses
- Analytics ingestion — Feed tabular data into BI tools
- Spreadsheet integration — Let users open your data in Excel/Sheets
- Pipeline staging — Stage JSON data as CSV before database bulk-load
Frequently Asked Questions
What if objects have different keys?
The union of all keys becomes the column set; missing values are empty cells.
Are nested objects flattened?
Yes — using dot-notation keys (e.g. `address.city`). Arrays are JSON-stringified into cells.
Can I use a custom delimiter?
Yes — pass `delimiter` (e.g. `;` or `\t`).
Start using JSON to CSV now
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