CSV to JSON
Convert CSV to JSON.
Paste CSV to convert it to JSON. With the header-row option, the first row becomes the object keys; otherwise you get an array of arrays. Quoted fields and commas are handled. Everything runs locally in your browser.
Your input is processed locally in your browser — nothing is uploaded, stored or logged.
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How it works
- 1 Paste your CSV.
- 2 Choose header-row and pretty-print options.
- 3 Copy or download the JSON.
Common use cases
- Import spreadsheet data as JSON.
- Feed CSV to a JSON API.
- Inspect CSV as structured data.
- Convert exports between formats.
Frequently asked questions
Is my text sent to a server?
No. Everything runs locally in your browser — your text is never uploaded, stored or logged.
Are quoted fields supported?
Yes — fields wrapped in double quotes (including commas and escaped quotes inside them) are parsed correctly.
What does the header option do?
On: the first row becomes the keys for each JSON object. Off: each row becomes an array of strings.
Is it really free?
Yes — free, with no signup and no limits.