CodeMash

Converters

XML → JSONJSON → XMLYAML → JSONJSON → YAMLHTML → PugPug → HTMLJSON → SchemaJSON → IONJSON → M3UText → JSONJSON → CSVCSV → JSONJSON → TypeScriptJSON → GoMD → HTMLHTML → MD

Formatters

JSON FormatXML FormatHTML FormatCSS FormatJS FormatSQL Format

Decoders

Base64JWT DecodeURL EncodeHTML Entities
CompareAbout

JSON to CSV Converter Online — Free

Convert JSON arrays or objects to CSV format for spreadsheets and data analysis.

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Frequently Asked Questions

How do I convert JSON to CSV online?

Paste your JSON array into the input box. Our converter automatically detects columns from object keys and generates CSV output with headers.

Does this handle nested JSON objects?

Yes, nested objects are automatically flattened using dot notation (e.g., address.city) so they fit into CSV columns.

Can I open the CSV in Excel or Google Sheets?

Absolutely. Copy the output and paste it into a .csv file, or directly into Excel or Google Sheets. The format is fully compatible.

What about JSON with mixed keys?

The converter handles arrays where objects have different keys by creating a superset of all columns, leaving cells empty where data is missing.

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