JSON to CSV Converter
Convert JSON data to CSV with automatic dot-notation flattening for nested objects (e.g. user.address.city).
Drop JSON file(s) here, or browse
Supports single or multiple batch conversion
Private by Design
Your files are processed directly on your device using WebAssembly, HTML5 Canvas, and client-side runtimes.
How to Convert JSON to CSV
Upload JSON
Choose the JSON file you want to convert.
Review File
Check the file information and conversion options.
Convert to CSV
Start the local JSON to CSV conversion.
Download CSV
Download your converted CSV file.
Questions about JSON to CSV Conversion
How are nested objects handled?
Nested keys like {"user": {"email": "a@b.com"}} are systematically flattened into column headers like "user.email".
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