JSON to CSV Converter
Convert JSON arrays to CSV format — paste, convert, and download instantly.
About This Tool
Turn JSON data into spreadsheet-ready CSV
Working with API responses, database exports, or configuration files? Convert JSON arrays to clean CSV that opens directly in Excel, Google Sheets, or any spreadsheet app.
Everything runs in your browser — your data never leaves your device. Need to go the other way? Use our JSON Formatter to clean up raw JSON.
Instant CSV
Converts as you type — no waiting, no buttons to click.
File Upload
Upload .json files directly from your device.
100% Private
All conversion happens locally. Nothing is uploaded.
Download CSV
Download the result as a .csv file ready for Excel.
Quick Start
How to Convert JSON to CSV
Paste JSON
Paste a JSON array of objects or upload a .json file.
Preview
CSV output is generated instantly as you paste.
Download
Copy to clipboard or download as a .csv file.
FAQ
Frequently Asked Questions
What JSON format does this tool accept?
A JSON array of objects like [{"name":"Alice"},{"name":"Bob"}]. Single objects are also supported — they produce a one-row CSV.
How are nested objects handled?
Nested objects and arrays are serialized as JSON strings in the CSV cell, so no data is lost.
What if my objects have different keys?
The tool collects all unique keys across all objects and uses them as CSV columns. Missing values become empty cells.
Is my data safe?
Yes. Everything runs in your browser using JavaScript. Your data never leaves your device.
Can I open the CSV in Excel?
Yes. Download the .csv file and double-click it to open in Excel, Google Sheets, or any spreadsheet app.
Is there a size limit?
No hard limit — it depends on your browser's memory. Typical JSON files up to 50MB convert without issues.