Nested object keys are flattened using dot notation by default (e.g., {"address": {"city": "New York"}} becomes a column header address.city), allowing multi-level JSON structures to be represented in tabular 2D rows.
DATA & CONVERTERS·Client-Side (100% Private)
JSON to CSV Converter
Convert JSON arrays or nested objects into clean CSV or TSV data with interactive table preview, custom delimiters, flattening, and download.
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Data entered into this tool is processed 100% locally within your browser. Nothing is ever sent to or logged on any server.
FREQUENTLY ASKED QUESTIONS
Frequently Asked Questions about JSON to CSV Converter
Quick answers to common questions about usage, conversion rules, privacy guarantees, and best practices.
How does JSON to CSV conversion handle nested objects?
How are arrays inside JSON objects represented in CSV?
Arrays can be serialized as JSON-encoded strings or delimited lists within a single CSV cell, ensuring that each root item maps to exactly one spreadsheet row without column shifting.
How are commas, quotes, and line breaks escaped in CSV columns?
In compliance with RFC 4180, fields containing commas, double quotes, or line breaks are enclosed in double quotes, and internal quotes are escaped by doubling them ("").
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