// free-toolJSON → CSV
JSON to CSV
Paste a JSON array of objects and get CSV with a header row built from the union of all keys — values are quoted and escaped correctly so the file opens cleanly in Excel or Google Sheets. Conversion runs entirely on your device.
no signup · no watermark · unlimited use
Frequently asked questions
What JSON shape does it expect?
An array of objects ([{...}, {...}]). Nested objects are serialized into their cell as JSON; the header row is the union of every key that appears in any row.
Is my data uploaded?
No — the conversion is plain JavaScript running in your browser.
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Parse CSV (with headers) into clean JSON arrays.
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JSON to XML
Serialize JSON objects into well-formed, indented XML.
XML to JSON
Parse XML into JSON, preserving attributes and structure.
JSON Formatter
Format, minify and validate JSON with precise error locations.
Need custom tools like this in your product?
I build fast, privacy-first web applications with Next.js — these converters run entirely in the browser, and yours can too.