uencoder

JSON CSV Converter

Convert between JSON and CSV formats online. Free, private, and 100% client-side.

Local only

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How to use

  1. Paste JSON or CSV into the input box.
  2. Select JSON to CSV or CSV to JSON mode.
  3. Choose the delimiter if needed.
  4. Copy or download the result.

Frequently asked questions

How are CSV headers determined?
When converting JSON to CSV, object keys become headers. When converting CSV to JSON, the first row is used as headers.
Which delimiters are supported?
Comma (default), semicolon, and tab.

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