CSV to JSON Converter
Convert CSV spreadsheets to JSON arrays and key-value objects online with header detection and type parsing. Fast browser-based CSV to JSON conversion.
How to Use CSV → JSON Online
Follow these quick steps to process your data online directly in your browser with zero latency and 100% privacy.
Example Input & Output
Converts header row into JSON object keys, automatically parsing numeric and boolean values into native JSON data types.
id,name,age,active 101,Alex,25,true 102,Alex,30,false
[
{
"id": 101,
"name": "Alex",
"age": 25,
"active": true
},
{
"id": 102,
"name": "Alex",
"age": 30,
"active": false
}
]Common Use Cases
Database Seeding
Convert spreadsheet data into JSON fixtures for mock databases.
Web App Data Ingestion
Transform CSV datasets into JSON arrays for React/Vue components.
Specifications & Gotchas
Missing Headers
If the first row is not a header, toggle header option to produce a 2D array matrix.
Frequently Asked Questions
Can I convert CSV without headers?
Yes! Toggle off headers to generate a 2D array of rows.
Are numbers and booleans converted?
Yes, numeric and boolean strings are converted to native types.
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