CSV to JSON Converter

Convert CSV exported from Excel, Google Sheets or a database into a JSON array of objects, using the first row as keys. Numbers and booleans are detected automatically.

Free, no sign-up
Runs locally in your browser

Your files are processed on this device and are never uploaded to a server.

How to use the CSV to JSON Converter

1
Paste or type your input.
2
Choose the operation and options.
3
Copy the output or download it as a file.

Delimiters

Commas, semicolons (common in European Excel exports) and tabs are detected automatically.

Frequently asked questions

Is my data sent to a server?

No. Everything runs in your browser as you type. Nothing is uploaded or logged, so it is safe to paste API responses, tokens and private text.