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JSON to CSV Converter – Turn JSON Arrays into Spreadsheets

Convert JSON to CSV instantly with automatic header detection, nested object flattening, and Excel compatibility—all offline in your browser.

🟢 Runs locally · no uploads

JSON to CSV Converter

Convert JSON data to CSV format with advanced options

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Data Export

Export JSON data from APIs to CSV for Excel/Sheets

storage
Database Results

Convert database query results to CSV for analysis

poll
Survey Data

Transform survey responses into spreadsheet format

analytics
Analytics Reports

Convert web analytics to CSV for custom reporting

421 B•3 records
JSON Input
[ { "name": "John Doe", "age": 30, "city": "New York", "active": true, "skills": ["JavaScript", "React", "Node.js"] }, { "name": "Jane Smith", "age": 25, "city": "Boston", "active": false, "skills": ["Python", "Django", "PostgreSQL"] }, { "name": "Bob Johnson", "age": 35, "city": "Chicago", "active": true, "skills": ["Java", "Spring", "MySQL"] } ]
CSV Output

CSV output will appear here

Quick Examples & Practice

Simple examples to get started with JSON to CSV conversion

Simple Array
[ { "name": "John", "age": 30, "city": "New York" }, { "name": "Jane", "age": 25, "city": "Boston" } ]
Nested Objects
[ { "user": { "name": "John", "profile": { "age": 30, "email": "john@example.com" } }, "active": true }, { "user": { "name": "Jane", ...
Keyboard Shortcuts
Convert to CSVCtrl+Enter
Clear AllCtrl+L

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› About this tool · FAQ

Stop manually copying JSON data into spreadsheets! Convert JSON arrays to CSV format instantly with automatic header detection, nested object flattening, and Excel compatibility. Perfect for exporting API responses and database queries. Free, works offline, handles large datasets.

How do I convert JSON to CSV?

Paste your JSON array into the converter, configure options (headers, delimiter, flattening), and click Convert. The tool generates CSV output instantly with proper formatting for Excel and spreadsheet applications.

Is this JSON to CSV converter free?

Yes, completely free with no limits on file size or conversions. No signup required, no watermarks. All processing happens in your browser for complete privacy.

Are my JSON files uploaded to servers?

No, all JSON to CSV conversion happens locally in your browser. Your data never leaves your computer, ensuring complete privacy for sensitive API responses and business data.

Can I convert nested JSON objects to CSV?

Yes! Enable "Flatten Objects" to convert nested structures like {"user":{"name":"John"}} to columns like "user.name". This makes complex JSON data spreadsheet-friendly.

How are arrays within JSON objects handled?

You can choose to stringify arrays (convert to text), separate them into multiple columns with pipes, or ignore them entirely. Stringify is most common for preserving data integrity.

What delimiters are supported?

Common delimiters include comma (,), semicolon (;), tab (\t), and pipe (|). Choose based on your target application and locale preferences for best Excel compatibility.

Can I import the CSV into Excel?

Yes! The generated CSV is Excel-compatible with proper quoting and escaping. Use semicolon delimiter for European Excel versions that expect this format by default.

How are null and undefined values handled?

You can choose to leave empty cells, explicitly write "null", or skip null values entirely. Empty cells are most common for spreadsheet compatibility and data analysis.