Open API data in a spreadsheet
Turn a list of records into columns that can be opened in Excel, Sheets or another table tool.
100% local · files never leave your browser
Convert tool
JSON to CSV Converter
Convert arrays of JSON objects to spreadsheet-ready CSV locally in your browser. No file upload or account required.
✓ Free to use✓ No signup✓ Runs locally
176 bytes · local only
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Processed entirely in this tab
Your input and result are not sent to JSON Hearth or stored on a server.
When to use it
What JSON to CSV helps you do
JSON-to-CSV conversion is most predictable when the input is an array of similarly shaped objects representing rows.
Prepare a quick export
Create a portable CSV from fixtures, reports or small datasets without writing a script.
Review tabular fields
Flatten a simple record collection into a format that is easy to scan and share.
How it works
JSON to CSV, without the upload.
Add your data
Paste a value, open a local file or begin with the working sample.
Run the tool
The transformation executes in your browser, not on our servers.
Review the result
Check the output, then copy or download it for your next task.
Important limitations
What to check before using the result
Review required
Deeply nested objects and arrays do not map naturally to flat CSV cells.
Review required
Review delimiter, quoting and character-encoding expectations before importing into another system.
Common questions
About JSON to CSV
Does JSON to CSV Converter upload my data?
No. Your input is processed by code running in your browser and is not sent to an application server.
Is JSON to CSV free to use?
Yes. The tool is free, requires no account and can be used directly in the browser.
What JSON shape works best for CSV conversion?
An array of objects with consistent keys produces the clearest table.
How are commas and quotes handled in CSV values?
Values requiring escaping are quoted according to CSV rules so embedded separators remain part of the cell.