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JSON to CSV

Convert an array of JSON objects into a CSV table.

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About this tool

Convert a nonempty JSON array of flat objects to CSV. The server rejects nested arrays and objects, allows up to 10,000 rows and 100 columns, and writes UTF-8 CSV with a byte-order mark. Columns can be reordered; the default formula-protection option prefixes potentially executable spreadsheet cells with an apostrophe. One JSON/TXT input up to 5 MiB is supported.

How to use

  1. Paste a JSON array of flat objects or choose one JSON/TXT file.
  2. Choose comma, semicolon or tab separation; review column order and formula protection.
  3. Convert, inspect the table preview and download converted.csv.

Frequently asked questions

Can nested JSON be flattened?

No. Object or array values inside a row are rejected; flatten them before conversion.

Why do some cells start with an apostrophe?

Formula protection is enabled by default to prevent spreadsheet software from executing cells beginning with formula-like characters.

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