Pricing

$20.00 / 1,000 file converteds

JSON to CSV Converter - Flatten Nested JSON to CSV API

Convert JSON to CSV. Input: url or jsonText. Output: ready-to-download CSV with nested objects flattened to dot-notation columns and keys unioned across all records. Sync run-and-return, pay-per-result at $0.02 per file converted.

Pricing

$20.00 / 1,000 file converteds

Rating

0.0

(0)

Developer

Anthony Snider

Actor stats

Bookmarked

Total users

Monthly active users

3 days ago

Last modified

JSON to CSV Converter

Turn any JSON — from a URL or pasted inline — into clean, ready-to-download CSV in one call.

Live on the Apify Store — run it instantly or call it as an agent tool via Apify MCP.

What you get

Fetch JSON by URL or paste raw JSON directly.
Flattens nested objects and arrays into dot-notation columns (e.g. address.city, tags.0).
Unions all keys across every record, so sparse/irregular records still line up into a single table.
Choose your delimiter (,, ;, \t, etc.).
Returns the CSV inline and as a downloadable file URL in the key-value store.

Input

{
  "url": "https://jsonplaceholder.typicode.com/users",
  "delimiter": ",",
  "flatten": true
}

Or paste JSON instead of a URL:

{
  "json": "[{\"id\":1,\"name\":\"Ada\",\"address\":{\"city\":\"London\"}}]"
}

Output

{
  "rowCount": 10,
  "columns": ["id", "name", "address.city", "address.zipcode", "company.name"],
  "csv": "id,name,address.city,...\n1,Leanne Graham,Gwenborough,...",
  "fileUrl": "https://api.apify.com/v2/key-value-stores/.../records/output.csv",
  "source": "https://jsonplaceholder.typicode.com/users"
}

Download the fileUrl to get the full CSV, or use the inline csv field directly in your workflow.

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