local-only

CSV ⇄ JSON

Convert CSV to JSON and JSON to CSV.

🔒 local memory only
Initializing CSV ⇄ JSON in local browser environment…

How to use CSV ⇄ JSON

  1. Select conversion mode: CSV → JSON or JSON → CSV.
  2. Paste your data into the editor.
  3. Configure custom delimiter options (comma, semicolon, tab).
  4. Click "Convert" and download the resulting file.

Why use this local-first tool?

  • Parses CSV with quoted multi-line fields and embedded commas.
  • Automatic type inference (booleans, numbers, nulls).
  • Flattens JSON arrays into tabular CSV rows.

Frequently Asked Questions

Does it handle commas inside quoted spreadsheet cells?

Yes. The parser strictly respects RFC 4180 rules for escaped quotes and commas.

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