JSON to CSV Converter
Convert a JSON array of objects into CSV rows instantly — paste JSON, get spreadsheet-ready CSV with proper comma and quote escaping. Free, client-side.
🔒 100% Client-Side Processing
Your data is processed entirely in your browser and never transmitted to any server.
0 / 100M Limit
Common Use Cases
Exporting API responses to a spreadsheet
Turn a JSON array from an API response into CSV rows a stakeholder can open directly in Excel or Google Sheets.
Converting test fixtures for QA review
Give non-technical testers a spreadsheet view of JSON fixture data instead of asking them to read raw JSON.
Preparing JSON logs for analysis tools
Convert structured JSON log exports into CSV for tools and BI dashboards that expect tabular input.
Frequently Asked Questions
- What JSON structure does this expect?
- A JSON array of objects, e.g. [{"name":"Alice","age":30},{"name":"Bob","age":25}]. Column headers are the union of every key across all objects, so objects with missing fields just get an empty cell rather than breaking the conversion.
- How are commas and quotes inside values handled?
- Any value containing a comma, double quote, or line break is automatically wrapped in double quotes with internal quotes doubled — standard CSV escaping, so the output opens correctly in Excel, Google Sheets, or any CSV parser.
- I need to go the other way, CSV to JSON — where do I do that?
- CSV to JSON does the reverse. Expect one difference: every field arrives as a string, because the format carries no type information at all — numbers, booleans and dates are indistinguishable in the file itself. Cast them after parsing if whatever consumes the output needs real types.
- Is my data private when I use this tool?
- Yes. This tool runs entirely in your browser using client-side JavaScript — nothing you type is transmitted to, logged by, or stored on any server. You can safely process confidential text, tokens, or code.