Data

JSON to CSV Converter

Export JSON arrays to CSV for spreadsheets - privately. Processing stays on your device — no upload, no account.

How to use JSON to CSV Converter

  1. Paste a JSON array of objects.
  2. Convert to CSV.
  3. Download and open in Excel or Sheets.

Why use this free json to csv tool?

  • All processing happens locally in your browser. Your files are never uploaded to a server.
  • Flattens object arrays.
  • Escapes fields safely.
  • Download .csv output.

Technical details

We collect union of keys across objects, escape quotes/newlines, and emit RFC-style CSV. Nested objects are stringified - prefer flat records for clean columns.

JSON to CSV Converter FAQ

Must JSON be an array?

An array of objects works best. Other shapes show a clear error.

Is JSON uploaded?

No. All processing happens locally in your browser. Your files are never uploaded to a server.

Nested fields?

They become stringified cells; flatten upstream for tidy columns.

Excel encoding?

UTF-8 CSV opens in modern Excel; use import wizard if characters look wrong.

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