How to use the JSON to CSV
- Enter or paste your input in the tool above.
- Choose the available options and select Run tool or Process locally.
- Review, copy, or download the generated result.
What does the JSON to CSV do?
The converter gathers keys used across array items to create columns. Primitive values become cells, while nested objects and arrays are serialized as JSON inside quoted CSV cells.
Common uses
- Open API results in spreadsheet software
- Export simple object arrays for reporting
- Create CSV fixtures from JSON data
JSON to CSV example
Example input
[{"name":"Ada","language":"Python"},{"name":"Brendan","language":"JavaScript"}]Example output
name,language
Ada,Python
Brendan,JavaScriptLimitations and important notes
- Input must be a JSON array
- Deeply nested structures remain JSON strings in cells
- CSV consumers may use different delimiter conventions
Private browser-based processing
Your data is processed locally in your browser and is not uploaded or stored on our servers. Tool inputs are not saved to local storage.
JSON to CSV features
- Free to use with no registration
- Fast client-side processing
- Clear validation and useful error messages
- Copy and download support
- Mobile-friendly accessible interface
Frequently asked questions
How are commas inside a value handled?
Values containing commas, quotes, or line breaks are wrapped in quotes and embedded quotes are doubled.
What happens when objects use different keys?
The output header includes keys found across all objects and missing values become empty cells.
Is the JSON to CSV free to use?
Yes. The JSON to CSV is completely free and requires no account or installation.
Is my data uploaded when using JSON to CSV?
No. Your input and result are processed locally inside your browser and are not sent to our server.
Can I use JSON to CSV on mobile?
Yes. The tool works in modern desktop and mobile browsers.