CSV to JSON Converter
Turn CSV rows into clean JSON.
How to use the CSV to JSON Converter
- 1 Paste your CSV data into the box.
- 2 Choose the delimiter (or leave it on auto-detect) and whether the first row is a header.
- 3 Pick array-of-objects or array-of-arrays output, then copy or download the JSON.
Examples
- ▸ Converting a spreadsheet export into JSON for an API request.
- ▸ Turning a semicolon-delimited European CSV into JSON with the delimiter override.
Frequently asked questions
How does delimiter auto-detection work?
The converter counts commas, tabs, semicolons and pipes in the first line and picks whichever appears most. Override it manually if your file uses an unusual delimiter.
What is the difference between array-of-objects and array-of-arrays output?
Array-of-objects uses your header row as keys, producing [{"name":"Ada"}, …] — ideal for APIs. Array-of-arrays keeps each row as a plain list of values, [["Ada"], …], useful when you do not need field names.
Does it handle quoted fields with commas or line breaks?
Yes. Fields wrapped in double quotes can contain commas, escaped quotes ("") and line breaks, following standard CSV (RFC 4180) parsing rules.
Is my data uploaded anywhere?
No. Parsing runs entirely in your browser, so the CSV data you paste never leaves your device.
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