CSV·JSON conversion, use it like this
Select the conversion direction and delimiter and paste the content or load a UTF-8 file. You can check the input format by inserting an example. Copy or download the conversion result.
Example usage
If the line following id,name contains 001,Alice, then in JSON id will be the string "001" rather than the number 1. The first row of the CSV is used as the column names.
Please note
Input 2MiB, data 10,000 rows/100 columns, output 8MiB or less. CSV values remain as strings. JSON supports only non-nested arrays of objects. The file is processed by the browser and is not a tool that opens the Excel file itself.