Developer Tools
CSV to JSON Converter — No Upload, Instant, Free
Convert CSV to JSON in your browser with no upload. Paste or drop a file — the first row becomes object keys and each row becomes a JSON object. Handles quoted commas and standard CSV escaping.
Frequently Asked Questions
- How should my CSV be formatted?
- The first row must be the header (column names). Each following row becomes one JSON object keyed by those headers.
- Does it handle commas inside values?
- Yes. Wrap a value in double quotes to include commas, and use two double quotes ("") for a literal quote — standard CSV escaping.
- Can I paste an Excel or Google Sheets export?
- Yes. Export or copy as CSV and paste it here. Everything is converted in your browser.
- Is my data sent anywhere?
- No. Conversion runs entirely in your browser.