Can I use a custom delimiter?

Yes, choose comma, semicolon, tab, or pipe from the options bar.

What if my CSV has no header row?

Turn off the header toggle and rows are converted to plain arrays.

Does this handle quoted fields?

Yes, quoted fields with embedded commas or quotes are parsed correctly.

Csv To Json

Convert between CSV and JSON with delimiter and header options.

Works Offline

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No Login

No API

Delimiter

First row is header

CSV input

Output

[
  {
    "name": "Ada",
    "city": "London"
  },
  {
    "name": "Grace",
    "city": "New York"
  }
]

About the Csv To Json

Convert CSV spreadsheets to JSON arrays or JSON arrays of objects back to CSV, with configurable delimiter and header-row handling — all processed locally in your browser.

Examples

Simple CSV

name,city
Ada,London

Output

[{"name":"Ada","city":"London"}]

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Frequently asked questions

Version 1.0.0 · Updated 2026-08-06 · Runs entirely in your browser