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SnapOtter/apps/docs/tools/csv-json.md
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description
description
Convert between CSV and JSON, both directions.

CSV to JSON

Convert between CSV and JSON formats in both directions. Upload a CSV or TSV file to get a JSON array of objects, or upload a JSON array to get a CSV file.

API Endpoint

POST /api/v1/tools/csv-json

Accepts multipart form data with a CSV, TSV, or JSON file and a JSON settings field.

Parameters

Parameter Type Required Default Description
pretty boolean No true Pretty-print JSON output with indentation

Example Request

CSV to JSON:

curl -X POST http://localhost:1349/api/v1/tools/csv-json \
  -H "Authorization: Bearer si_your-api-key" \
  -F "file=@users.csv" \
  -F 'settings={"pretty": true}'

JSON to CSV:

curl -X POST http://localhost:1349/api/v1/tools/csv-json \
  -H "Authorization: Bearer si_your-api-key" \
  -F "file=@users.json" \
  -F 'settings={}'

Example Response

{
  "jobId": "a1b2c3d4-e5f6-7890-abcd-ef1234567890",
  "downloadUrl": "/api/v1/download/a1b2c3d4-e5f6-7890-abcd-ef1234567890/users.json",
  "originalSize": 1500,
  "processedSize": 2200
}

Notes

  • Conversion direction is auto-detected from the input file extension: .csv or .tsv produces .json, and .json produces .csv.
  • The pretty parameter only affects JSON output. When set to false, the output is a compact single-line JSON string.
  • JSON input must be an array of objects with consistent keys. Each object becomes a row, and each key becomes a column header.
  • TSV (tab-separated values) files are supported alongside CSV.