JSON to CSV Converter – Convert JSON Online
100% Client-SideConvert JSON arrays or objects into CSV format instantly with customizable delimiters, header options, and nested key flattening. See a live preview and download your CSV file—all processing happens in your browser.
How to use JSON to CSV Converter
- Paste or upload your JSON data (array or object) in the input area.
- Configure delimiter, header row, and nested object flattening options as needed.
- Watch the CSV output and preview update in real time as you type or after uploading.
- Use the Copy or Download buttons to save the CSV file.
- Click the Sample Array button to load an example.
JSON INPUT (ARRAY OR OBJECT)0 chars
CSV OUTPUT & PREVIEW0 rows
Key Capabilities
Supports customizable field delimiters: Comma (,), Tab (\t), Semicolon (;), Pipe (|)
Automatic key flattening for nested object hierarchies
Interactive live HTML preview table before CSV download
Frequently Asked Questions
What does JSON to CSV conversion do?
JSON to CSV conversion transforms JSON data into comma-separated values format, making it easy to import JSON data into spreadsheets, databases, or data analysis tools.
How does the converter handle nested JSON objects?
When 'Flatten Nested Objects' is enabled, nested keys are converted into dot-notation headers (e.g. location.city, address.street) to create a flat CSV structure.
Can I convert JSON objects (not arrays) to CSV?
Yes, the converter can handle both JSON arrays and single JSON objects. Objects are treated as a single-row CSV with appropriate headers.