Question 1

Does the first row have to be a header?

Accepted Answer

Yes, the first row is used as the JSON object keys.

Question 2

How are empty cells handled?

Accepted Answer

Empty cells become empty strings in the corresponding JSON fields.

Question 3

Can I download the result as a file?

Accepted Answer

Yes, the result can be copied to the clipboard or downloaded as a .json file.

Question 4

Are nested structures supported?

Accepted Answer

No, CSV is a flat format, so the result is always an array of flat objects.

Question 5

Is processing done in the browser?

Accepted Answer

Yes, the whole conversion is done locally using the PapaParse library.

CSV to JSON

How to use it