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The JSON to CSV Converter takes a JSON array of objects (or a single object) and produces a delimited CSV file with auto-detected headers from object keys. Useful for data analysts pulling JSON from APIs into Excel, Google Sheets, or pandas. Handles nested objects (flattened with dot notation), arrays (joined with semicolon), null/undefined (empty cell), and configurable delimiters (comma, semicolon, tab).
公式
CSV = headers + (each row joined by delimiter)
- J
- JSON Input (text) — JSON document
ステップバイステップガイド
- 1Paste JSON array or object
- 2Choose delimiter (comma, semicolon, tab)
- 3Calculator validates JSON and outputs CSV with detected columns
- 4Copy result to clipboard or paste into spreadsheet
解いた例
入力
[{"a":1,"b":2},{"a":3,"b":4}]
結果
a,b
1,2
3,4
避けるべきよくある間違い
- ✕Trailing commas in JSON (invalid)
- ✕Inconsistent keys across objects
よくある質問
What about nested arrays?
Nested arrays are joined with semicolons within a single cell. For complex nesting, normalize the JSON first.
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