Picsova

CSV to JSON

Paste or upload CSV and instantly get clean JSON with header detection and an array-of-objects output. Convert back from JSON to CSV too. Everything runs in your browser.

Runs entirely in your browser. Nothing is uploaded.

Turn spreadsheets into JSON

CSV is what you export from a spreadsheet; JSON is what code actually wants. Converting between them is a constant chore, and the data involved is often exactly the kind you should not paste into an unknown website: customer lists, order exports, internal reports. This converter parses the file in the page, detects the header row, and gives you a clean array of objects — and it runs in reverse when you need to hand JSON back to a spreadsheet.

How to convert CSV to JSON

  1. 1

    Paste or upload your CSV

    Drop in a file or paste rows straight from a spreadsheet.

  2. 2

    Check the detected headers

    The first row becomes the object keys. The parsed JSON updates live so you can confirm the columns lined up.

  3. 3

    Copy the JSON

    Take the array of objects, or switch direction to turn an existing JSON array back into CSV.

Good to know

  • Output is an array of objects keyed by column name, which is the shape almost every API and script expects.
  • Quoted fields containing commas are handled correctly, so addresses and free-text notes survive the round trip.
  • All values arrive as strings, which is exactly what CSV can express — cast numbers and booleans on your side afterwards.
  • Nothing is uploaded, which is what makes this usable with real customer or financial exports.

What people use it for

  • Turning a spreadsheet export into seed data or a fixture for an application
  • Reshaping a client's CSV into the JSON body an API import expects
  • Converting a JSON API response back into CSV so a colleague can open it in Excel

Frequently asked questions

Does it handle quoted fields and commas?+

Yes. The parser understands quoted values, escaped quotes, and commas inside quotes, following standard CSV rules.

Can I convert JSON back to CSV?+

Yes: switch the mode and paste a JSON array of objects to get CSV with a header row.

Is my data sent to a server?+

No. Converting happens entirely in your browser using built-in web APIs. Nothing is uploaded, stored, or logged.

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