CSV to JSON Converter
Paste CSV and convert it to a JSON array (delimiter and header options, copy the result)
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🔒 Everything runs 100% in your browser. Your files and input are never uploaded to any server.
Paste CSV separated by commas, tabs, semicolons, and more, and it's instantly converted to a JSON array. It supports a header option that uses the first row as keys plus quoted-value handling, so you can copy the result right away.
How to use
- Paste your CSV data into the input box.
- Select the delimiter that matches your data (comma, tab, semicolon, or pipe).
- Use the checkbox to decide whether the first row is used as headers (keys).
- Review the converted JSON and copy it with the 'Copy JSON' button.
FAQ
- Is the pasted data sent to a server?
- No. All conversion happens within your browser and the CSV you enter is never sent to or stored on a server.
- Can values contain commas or line breaks?
- Yes. Fields wrapped in double quotes are handled as-is, and a doubled quote ("") inside a field is read as a single quote.
- What happens if I turn off the header option?
- Each row becomes a string array, producing JSON in the form of an array of arrays.