CSV to JSON Converter
Convert CSV to a JSON array online for free — everything runs in your browser.
Local browser processing
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Upload & download supported
ConvertConvert CSV to a JSON array
CSVinput.csvJSON
Delimiter
Indent
⌘⏎Quick convert
Input · CSVEditable
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Output · JSONReady20 lines · 285 B
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[
{
"id": 1,
"name": "Ada Lovelace",
"role": "Engineer",
"active": true
},
{
"id": 2,
"name": "Grace Hopper",
"role": "Admiral",
"active": true
},
{
"id": 3,
"name": "Alan Turing",
"role": "Mathematician",
"active": false
}
]
UTF-8 · Delimiter: Comma · Indent: 2 spacesLocal processing · Ready
How It WorksCSV → JSON
Overview
This CSV to JSON converter parses CSV table data and converts it into a JSON array — the first row is automatically used as field names to generate an array of objects. It supports common delimiters like commas, semicolons, and tabs, and can optionally auto-detect numbers and booleans. Everything runs locally in your browser; your data never leaves your device.
Use Cases
Turn CSV exported from Excel or spreadsheets into API dataConvert logs or reports into JSON for easier processingPrepare JSON for frontend mock dataQuickly check the row/column structure of a CSV file
Steps
123
Paste or uploadSet optionsGet the result