Array of objects
Input: [{"name":"Ada","role":"Engineer"}]
Output: name,role
Ada,Engineer
Developer
JSON to CSV Converter
Convert JSON arrays or objects to CSV locally with flattening and quote controls.
Runs locallyNo uploadNo external API
Input
Output
Paste a JSON array or object to convert it to CSV.
Paste a JSON array or object to convert it to CSV.
Runs in your browser. Input is not uploaded or sent to an external API.
Related tools
How to use JSON to CSV
Move JSON arrays into CSV shape for spreadsheet review, QA fixtures, and lightweight data handoffs.
- Paste or type your input.
- Load the sample if you want a quick check.
- Run the action, review the result, then copy only what you need.
Examples
Nested flattening
Input: {"user":{"name":"Ada"}}
Output: user.name
Ada
Quote all cells
Input: [{"a":"x,y"}]
Output: "a"
"x,y"
Common use cases
Share QA samples
Turn small JSON arrays into CSV rows that product and QA can scan.
Clean JSON first
Validate pasted JSON before converting it.
Compare exports
Diff two JSON payloads before exporting the final version.
Limitations
Nested arrays
Deep arrays are stringified in cells. Complex data may need manual modeling.
Browser memory
Very large JSON can be slow because conversion is intentionally local.
FAQ
Can I convert one JSON object?
Yes. A single object is treated as one CSV row.
How are nested fields named?
Flattening uses dot paths such as profile.role.
Does this download or upload data?
No. Output is created locally for copy from the page.