Convert JSON to CSV instantly, flattening nested objects, remapping or reordering headers, and previewing rows in a live table before you export.
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JSON is ideal for APIs and applications, while CSV is easier to analyze in spreadsheet software such as Excel and Google Sheets. Converting JSON to CSV helps transform structured data into a format suitable for reporting, filtering, and analysis.
JSON often contains nested objects and arrays that do not fit naturally into spreadsheet columns. Conversion tools can flatten nested properties, stringify complex values, or exclude them depending on the desired output format.
CSV files are supported by databases, business intelligence tools, spreadsheet applications, and data processing platforms. This makes CSV one of the most widely accepted formats for importing and exporting tabular data.
Well-structured CSV files make it easier to sort, filter, visualize, and analyze information. Ensuring consistent column names and properly formatted values helps prevent import errors and improves data quality.
Quick answers about how this tool works.
You can select how to handle nested objects: either flatten them using a separator (like "user.name.first"), ignore/skip them entirely, or keep them as JSON-string values. Arrays can similarly be joined with delimiters or stringified.
Yes! Our custom header options list lets you choose which columns to include in the final CSV and rename keys (e.g., mapping "address.zip" to "Zip Code") dynamically.
The converter automatically wraps a single JSON object into an array of one item, allowing you to convert single-object data into a valid single-row CSV structure.
The tool can comfortably parse and convert JSON files up to 5MB to 10MB in size. Since processing is done directly by your browser's V8 engine, performance will depend on your local system memory.
Plain-language explainers that sit next to this tool.
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