Free local tool

CSV to JSON

Convert CSV rows to JSON locally with browser-only parsing.

Cost: Free
Files: No upload
Runtime: Browser-local
Input: CSV
Output: JSON

1Add input
2Run tool
3Download or copy

Runs in your browser. Files do not leave your device.

CSV to JSON

Paste text, run the tool locally, and copy the result.

Input

Details

How this works

Turn table rows into JSON

Paste CSV with headers and convert it into an array of JSON objects.

Input

name,score
A,10

Output

[{"name":"A","score":"10"}]

Edge cases

Empty rows are skipped.
Numbers remain strings unless another tool or workflow converts them.

Accuracy

Quoted commas and escaped fields are handled by Papa Parse.

Privacy

CSV text is parsed in your browser.