CSV JSON Converter | Quick Tools
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CSV ↔ JSON converter

Convert CSV to JSON with schema detection and JSON to CSV with optional flattening.

Ready.

What this tool does

  • Converts CSV rows into JSON objects.
  • Converts JSON arrays into CSV output.
  • Supports delimiter, header, type detection, and nested flattening options.

How to use it

  • Paste data or choose a CSV or JSON file.
  • Set direction and parsing options.
  • Convert, review the output, then copy or download it.

Common use cases

  • Convert a partner CSV export into JSON for an API test.
  • Flatten a small JSON response before opening it in a spreadsheet.
  • Check delimiter issues before importing customer records.

Notes

  • Malformed CSV with embedded line breaks needs correctly quoted values.
  • Large files can be limited by browser memory.
  • Type detection is a convenience feature; verify IDs, ZIP codes, and leading zeros manually.

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