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Flatten an array of JSON objects into spreadsheet-ready CSV.
Convert an array of JSON objects into clean, spreadsheet-ready CSV in one step. This JSON to CSV converter builds the header row from your object keys, escapes commas and quotes correctly, and flattens nested fields so the result opens perfectly in Excel or Google Sheets. It handles ragged data where objects have different keys by unioning every column it finds.
Provide an array of objects. Each object becomes one CSV row, and its keys define the columns.
The converter collects every key across all objects into a single header row and flattens nested fields into dotted columns.
Export the result as a .csv file or copy it, then open it directly in Excel, Numbers, or Google Sheets.
Object keys become the header row; each object becomes a row.
Input
[
{ "id": 1, "name": "Ada Lovelace", "role": "Engineer" },
{ "id": 2, "name": "Alan Turing", "role": "Mathematician" }
]Output
id,name,role
1,Ada Lovelace,Engineer
2,Alan Turing,MathematicianParse CSV into a clean array of typed JSON objects, header-aware.
Flatten nested JSON into single-level dot-notation key paths.
Turn JSON into clean, readable YAML for configs, pipelines and manifests.
Pretty-print JSON with configurable indentation and instant validation.