Free Online JSON to CSV Converter

Convert JSON to CSV online for free - no registration, no file uploads to external servers. Our browser-based converter processes your data locally, ensuring complete privacy and security for sensitive information. Transform API responses, database exports, and JSON files instantly.

Paste JSON Here

CSV Result

Free Online JSON to CSV Conversion Tool

Looking for a reliable way to convert JSON to CSV online? Our free converter works entirely in your browser, which means your data never leaves your computer. This is crucial for businesses handling sensitive customer data, financial records, or proprietary information that cannot be uploaded to third-party servers.

Unlike desktop software that requires installation, our online tool is ready to use instantly from any device with a web browser. Whether you're on Windows, Mac, Linux, or even a mobile device, you can convert JSON data to CSV format within seconds.

Why Choose Our Online Converter?

100% free with no usage limits or watermarks
No account registration or email required
Client-side processing keeps your data private
Works offline once the page is loaded
Instant conversion with real-time preview
Statistics showing rows, columns, and file size

Supported JSON Formats

Our converter handles standard JSON arrays, nested objects (flattened to columns), mixed data types, null values, boolean values, and numeric data. It automatically detects all unique keys across your JSON objects and creates appropriate CSV headers, making it perfect for inconsistent data structures common in real-world API responses.