Free converter
JSON to CSV Converter
Upload a JSON file or paste JSON content to generate spreadsheet-ready CSV output. The converter flattens nested keys into a simple key,value structure for review and sharing.
Runs locally in your browser. Files are not uploaded to a server.
JSON source
Paste JSON content or upload a .json file from your device.
Generated CSV
Copy the result or download it as a ready-to-use CSV file.
What this tool does
Flattens nested JSON
Nested objects are converted into dot-notation keys so they fit cleanly into CSV rows.
Builds simple key-value output
The generated CSV uses a straightforward key,value structure for review, editing, and export.
Works directly in the browser
The conversion happens locally in the page without requiring backend processing.