metyris.

JSON to CSV

Convert an array of flat JSON objects to correctly escaped CSV.

Processed locally in your browser — your data is not uploaded.
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How to use JSON to CSV

  1. Paste an array of flat JSON objects up to 5 MB.
  2. Choose a delimiter and convert.
  3. Preview, copy or download the escaped CSV.

What JSON shape is supported?

Use an array of flat objects. Nested objects and arrays are rejected rather than silently discarded.

No sign-up is required. The calculation or transformation happens in this browser tab and the result is available immediately.

PRACTICAL GUIDESCleaning and validating data locally in your browserSeparate syntax checks, text cleanup, encoding and integrity verification while keeping working data in the browser.

Good to know

How are commas, quotes and newlines escaped?+

Fields containing delimiters, quotes or line breaks are quoted, and embedded quotes are doubled.

Are missing values allowed?+

Yes. Missing and null values become empty fields.

Is my input uploaded?+

No. Processing happens in this browser tab and the tool does not send your input or result to Metyris.

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