Convert CSV to JSON Online — Array of Objects, No Upload
Free CSV to JSON converter that runs entirely in your browser. Array of objects with header keys, or arrays of values. RFC 4180-safe quoted fields. No upload, no signup, no limits.
How it works
- Drop your CSV file into the workbench.
- Choose object or array output and type handling.
- Copy the JSON or download it as a .json file.
Frequently asked questions
How does the converter handle commas inside fields?
The parser is fully RFC 4180 compliant: fields wrapped in quotes may contain commas, escaped double-quotes and literal line breaks without breaking structure.
What JSON format do I get?
With "first row is header" enabled you get an array of objects: [{ "name": "Ada", "email": "ada@example.com" }, …]. Without it you get an array of arrays.
Are my values converted to numbers automatically?
Yes — numeric-looking values become JSON numbers and true/false become booleans. Uncheck type detection to keep everything as strings and preserve leading zeros in SKUs and ZIP codes.
Is the conversion private?
Absolutely — nothing is sent anywhere. Conversion runs in your browser; disconnect your internet and it still works.