CSV to JSON converter

Convert CSV to JSON. Paste CSV or import a file; adjust options (headers, delimiter, trim, etc.), preview, copy, and download.

CSV

Paste CSV directly or import a .csv or .txt file from this device.

Options

Adjust how CSV rows are parsed before you copy or download the converted JSON.

No header row

Custom headers

Delimiter

Newline

Quote character

Escape character

Skip empty lines

Indent size

Choose 0 for compact output or 1-8 for pretty-printed indentation.

Trim cells

Infer value types

Fast mode

Preview rows

Comments

Skip first N lines

Fallback delimiters

Include columns (regex)

Ignore columns (regex)

JSON

JSON output updates as soon as the input contains valid CSV.

Paste valid CSV on the left to preview the converted JSON here.

What this tool is for

Use this tool when you need to turn CSV rows into JSON that is easier to inspect, reuse, or hand off to another tool. Everything runs locally in the browser.

Where it helps

Converting spreadsheet-style exports into JSON for docs, config, or API testing.
Checking how headers, delimiters, and type inference affect the final JSON shape.
Preparing structured data for workflows that already expect JSON input.

What to watch for

Input must be valid CSV in this tool.
Header and delimiter settings change whether rows become JSON objects or raw arrays.
If you need the reverse direction, use the JSON to CSV converter instead.

How to use

Paste text or import a UTF-8 file, adjust options, then copy or download the complete result