JSON to CSV Converter – Convert JSON Data to CSV Free
Convert JSON arrays to CSV format online instantly. Auto-detects keys, supports nested objects, custom delimiters, and live table preview—download your CSV file free.
About This Tool
Learn what makes this tool special
When to Convert JSON to CSV
- Data analysis: CSV is easier to open and analyze in Excel or Google Sheets
- Reporting: export API data to spreadsheets for non-technical stakeholders
- Database import: many databases and CRMs accept CSV for bulk data import
- ETL pipelines: CSV is a universal data exchange format
What Types of JSON Are Supported
- JSON arrays of objects (most common API response format)
- Flat JSON objects
- Nested objects (flattened to dot-notation columns)
Example
``
json
[{"name": "Alice", "age": 30}, {"name": "Bob", "age": 25}]
`
Becomes:
`
name,age
Alice,30
Bob,25
``Output Options
- Comma-delimited (standard CSV)
- Tab-delimited (TSV)
- Custom delimiter
- Include or exclude header row
Key Features
What makes this tool special
- Convert JSON arrays to properly formatted CSV
- Column headers auto-detected from JSON keys
- Nested object flattening (dot-notation)
- Comma, tab, or custom delimiter options
- Download as .csv file
- Copy output to clipboard
- Validates JSON before conversion
- Shows error messages for invalid JSON
- No sign-up required
- 100% browser-based
- Free with no limits
Quick Guide
Master this tool in seconds
- 1Paste your JSON data (array of objects) into the input field
- 2Select delimiter preference (comma, tab, or custom)
- 3Click 'Convert to CSV'
- 4Preview the CSV output in the result area
- 5Click 'Download CSV' or 'Copy to Clipboard'
Common Questions
Everything you need to know
Q.What JSON format does this converter support?
Arrays of objects ([ {...}, {...} ]) are best supported. Flat single objects are also handled. Deeply nested arrays may require preprocessing.
Q.Will all JSON fields become CSV columns?
Yes — all unique keys across all objects in the array become column headers.
Q.What happens with nested objects?
Nested objects are flattened using dot notation (e.g., address.city becomes a column named 'address.city').
Q.Can I open the CSV in Excel?
Yes — download the CSV file and open it directly in Microsoft Excel or Google Sheets.
Q.What if my JSON is invalid?
The tool validates your JSON and shows a clear error message with the location of the syntax issue.
Q.Is my data sent to a server?
No — all conversion runs in your browser. Your data never leaves your device.
Q.Is this free?
Yes — completely free with no sign-up.
You Might Also Need
Recommended next steps
JSON Formatter & Validator Online
Recommended Next Step
Mock Data Generator - Users, Emails, Addresses
Recommended Next Step
Diff Checker
Recommended Next Step
SQL Formatter & Beautifier
Recommended Next Step
Excel to PDF Converter - Convert XLSX & CSV to PDF
Recommended Next Step
Free Online Regex Tester & Validator
Recommended Next Step