JSON to CSV
Convert a JSON array of objects to CSV instantly in your browser.
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About this tool
A JSON to CSV converter takes a JSON array of objects and turns it into comma-separated values you can open in Excel, Google Sheets, or any spreadsheet tool. Each object becomes a row, and the converter builds a header from the union of every object's keys — so even records with missing or extra fields line up under the right columns. Values that contain commas, quotes, or line breaks are automatically wrapped in double quotes and escaped, producing valid CSV that imports cleanly everywhere.
Developers, analysts, and data teams convert JSON to CSV constantly: exporting API responses for a spreadsheet, flattening logs for analysis, preparing data for a BI tool, or handing a non-technical colleague a file they can actually open. This tool does it in one step — paste your JSON array, and the CSV appears ready to copy.
Everything runs entirely in your browser using the native JSON parser. Your data is never uploaded, logged, or stored on a server, which makes it safe for internal exports, customer records, and any confidential dataset you would rather not paste into a random website.
Examples
Input
[{"name":"Ada","role":"Engineer"},{"name":"Bob","role":"Designer"}]
Output
name,role Ada,Engineer Bob,Designer
Each object becomes a row. The header is built from the keys, and the newline (\n) separates rows.
Input
[{"name":"Ada","role":"Engineer"},{"name":"Bob"}]
Output
name,role Ada,Engineer Bob,
Missing keys become empty cells — Bob has no role, so that cell is left blank.
Input
[{"city":"Paris, FR","note":"say \"hi\""}]
Output
city,note "Paris, FR","say ""hi"""
Values containing a comma or double quote are wrapped in quotes, and internal quotes are doubled (RFC 4180).
Common uses
- Developers exporting a JSON API response into a CSV file so a non-technical colleague can open it in Excel or Google Sheets.
- Data analysts flattening JSON logs or event records into CSV for analysis in a spreadsheet or BI tool.
- Engineers converting a database query result dumped as a JSON array into CSV for a one-off import or report.
- Marketers and ops teams turning JSON exports from a SaaS tool into CSV to merge with other spreadsheet data.
- QA testers building CSV fixtures from JSON sample data for import or upload testing.
- Anyone handed a JSON array of objects who needs a clean, properly quoted CSV with a header row in one paste.
Frequently asked questions
Is this JSON to CSV converter free?
Yes. It is completely free with no sign-up, no limits, and no watermarks.
Is my data uploaded or kept private?
Your data stays private. All parsing and conversion happen locally in your browser — nothing is sent to a server, logged, or stored.
What JSON format does it expect?
A JSON array of objects, such as [{"name":"Ada","age":36}]. The column headers are built from the union of all object keys, in the order they first appear.
How are commas, quotes, and newlines handled?
Any value containing a comma, double quote, or newline is wrapped in double quotes, and internal quotes are doubled. This follows standard CSV escaping so the output imports cleanly into spreadsheets.
What happens to nested objects or arrays?
Nested objects and arrays are serialized back to a JSON string inside the cell. Null and undefined values become empty cells, and numbers and booleans are written as plain text.
Learn more
Embed this tool
Free to use on your own site. It stays fast and private for your visitors.
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<p style="font:13px sans-serif"><a href="https://hypercho.com/tools/json-to-csv" target="_blank" rel="noopener">JSON to CSV</a> by <a href="https://hypercho.com" target="_blank" rel="noopener">Hypercho</a></p>Related tools
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