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Developer Tools

JSON to CSV Converter

Convert JSON arrays into CSV for spreadsheets. Nested objects become dot-separated columns, and you can choose the delimiter.

Runs in your browser. Nothing you enter is uploaded. Last updated

How to use

  1. Paste a JSON array of objects (or a single object).
  2. Choose the delimiter: comma, semicolon or tab.
  3. Download the CSV and open it in your spreadsheet app.

What this tool does

Every key found in any object becomes a column. Nested objects are flattened (address.city), arrays of simple values are joined with a pipe, and cells containing the delimiter, quotes or line breaks are quoted correctly.

Tips

  • Use semicolons if your spreadsheet uses commas as decimal separators.
  • Turn on formula protection before opening data from untrusted sources in Excel.

Frequently asked questions

What does "protect against formulas" do?

Cells that start with =, +, - or @ are prefixed with an apostrophe so spreadsheet apps show them as text instead of running them.

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