JSON to CSV Converter
Convert API responses, exported JSON files and nested objects into spreadsheet-ready CSV without uploading your data.
0 characters
CSV appears here. Everything runs in your browser.
Header preview
No rows converted yet
Nested object flattening
Object paths become readable columns like customer.email, billing.city and metrics.revenue.
Spreadsheet-ready escaping
Commas, quotes, line breaks and Unicode values are escaped for CSV import in Excel, Sheets and BI tools.
Private local processing
JSON.parse and CSV generation run on your device. No upload endpoint, API key or third-party processing is involved.
Related developer tools
JSON to CSV Converter
Flatten suitable JSON arrays or objects into spreadsheet-ready CSV.
- Input
- JSON tabular data plus delimiter, quoting, and flattening choices.
- Output
- CSV text with a deterministic header row.
- Real limitations
- Deep arrays and heterogeneous objects require a flattening convention, and object types cannot be preserved in plain CSV cells.
- Privacy and data handling
- JSON tabular data plus delimiter, quoting, and flattening choices is processed in this browser tab. Convertr does not receive or store it; closing or reloading the page clears the working state unless the tool explicitly offers a local download.
How to use this tool
- Provide JSON tabular data plus delimiter, quoting, and flattening choices in the tool controls.
- Choose the settings that affect CSV text with a deterministic header row, then run the tool.
- Review CSV text with a deterministic header row before copying or downloading it.
Common failure modes
Invalid JSON, no records, incompatible record shapes, or unsupported nested values can prevent a reliable table.
Useful example
Convert three order objects into CSV columns for id, customer.name, and total.