MARZ.tools

CSV Converter

Convert CSV to JSON, or JSON to CSV, instantly in your browser.

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About this tool

Paste or upload a CSV file to convert it to JSON, or paste a JSON array to convert it to CSV, with configurable delimiters.

How to use

  1. Paste CSV or JSON, or upload a .csv file.
  2. Choose the conversion direction and delimiter.
  3. Copy or download the converted result.

FAQ

Does it handle quoted fields with commas?

Yes, standard CSV quoting rules (double quotes, escaped quotes) are handled correctly.

Is there a file size limit?

Conversion happens in your browser's memory, so very large files (100MB+) may be slow depending on your device.

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