JSON to CSV

Convert JSON arrays of objects—or flat objects—into CSV rows. Optionally emit a header line with property names for spreadsheet import.

Supported JSON shapes

• Array of homogeneous objects → one row per object
• Array of arrays → rows without automatic headers
• Single object → key/value pairs as rows

Limitations

Nested objects are stringified rather than flattened into multiple columns. Invalid JSON is rejected before conversion.

When to use it

Export API fixture data for Excel review, build import templates from JSON configs, or share tabular snapshots with teammates who prefer spreadsheets. All conversion runs locally in the browser.

Example

Given the JSON array [{"name":"Ada","score":98},{"name":"Grace","score":95}] with headers enabled, the converter emits:

name,score
Ada,98
Grace,95

A single flat object such as {"b":2,"a":1} becomes two rows (a,1 and b,2 depending on key order after parse) so spreadsheet tools can import key/value pairs without writing a custom parser.

This skill is available over A2A JSON-RPC and REST. When you already know the skill id and export, call execute directly—no discovery step required.

REST example

curl -sS -X POST https://toolplaza.app/api/helpers/execute \
  -H 'Content-Type: application/json' \
  -d '{"skillId":"data-converter__json-to-csv","export":"fromJsonToCsv","args":["Hello"]}'

A2A JSON-RPC example

Send POST https://toolplaza.app/api/a2a with:

{
  "jsonrpc": "2.0",
  "id": "1",
  "method": "message/send",
  "params": {
    "message": {
      "messageId": "uuid",
      "role": "user",
      "parts": [
        {
          "kind": "text",
          "text": "ignored"
        }
      ]
    },
    "metadata": {
      "toolplaza": {
        "skillId": "data-converter__json-to-csv",
        "export": "fromJsonToCsv",
        "args": [
          "Hello"
        ]
      }
    }
  }
}

Full Agent API guide · Skill schema