Private CSV to JSON conversion

CSV to JSON Converter

Turn a header-based CSV dataset into a pretty-printed JSON array of objects.

Your data stays in your browser. Files are processed locally and are never uploaded.

CSV inputOr choose a local file

You can also drop one compatible file anywhere in this dashed area.

Convert tabular rows into JSON objects

The first CSV row becomes property names and every following row becomes an object.

ZIP codes, IDs, dates, booleans, and numbers are not automatically retyped, preventing surprising changes such as removed leading zeros.

Yes. Blank and duplicate headers receive safe unique names.

No. CSV values remain strings.

Yes, when the CSV field is correctly quoted.