Why Convert JSON to CSV?
JSON (JavaScript Object Notation) is the standard data interchange format for modern REST APIs, databases, and web services. However, when presenting data to business stakeholders or analyzing metrics in Excel or Google Sheets, CSV (Comma-Separated Values) remains indispensable.
Frequently Asked Questions
How does the JSON to CSV converter work?
The converter parses your input JSON array of objects, extracts unique keys to create column headers, and maps each object's values into corresponding CSV rows.
Is my JSON data uploaded to an external server?
No. The conversion executes 100% client-side inside your web browser. Your data never leaves your computer.
How does the tool handle nested JSON objects or arrays?
When 'Flatten Nested Objects' is enabled, child properties are flattened using dot notation (e.g. `user.address.city`). Arrays are joined into comma-separated strings.
Can I open the generated CSV file directly in Microsoft Excel?
Yes. The downloaded `.csv` file can be opened directly in Microsoft Excel, Google Sheets, Apple Numbers, or LibreOffice Calc.
What happens if objects in my JSON array have inconsistent keys?
Our converter scans all objects across the array to compile a master list of unique column headers. Objects missing specific keys will simply leave empty cells in those columns.
Can I convert single JSON objects instead of arrays?
Yes. If you input a single JSON object, the converter automatically wraps it into a single-row array for tabular conversion.
What delimiter choices are available?
You can select standard Comma (`,`), Semicolon (`;`), or Tab (`\t`) delimiters.
Is there a file size limit for JSON input?
Because processing happens locally in your browser memory, it can handle multi-megabyte JSON files with thousands of rows in seconds.
Sources & References
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