Browser utility
JSON ↔ CSV Converter
Convert flat JSON records and standards-aware CSV text locally in your browser.
JavaScript is required to run this browser-based tool.
Supported use
Limits and behavior
JSON to CSV accepts an array of flat objects. Nested arrays and objects are preserved as JSON strings rather than flattened. CSV supports headers, quoted commas, escaped double quotes, CRLF or LF line endings, empty cells, and newlines inside quoted fields. CSV values become strings in JSON.
Current limit: 5 MiB, 50,000 rows, and 200 columns.
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