About CSV → JSON
Convert pasted or uploaded CSV with delimiter detection, header controls, tabular preview, and correct quoted-field handling.
CSV to JSON detects or accepts a delimiter, optionally treats the first row as property names, and parses quoted fields correctly. A table preview helps catch structural surprises before export.
How to use it
- Enter or select your source data.
- Adjust the available options and run the tool.
- Review, copy, or download the result.
Common use cases
- Convert spreadsheet exports into API fixtures.
- Turn tabular reference data into JavaScript-friendly objects.
- Inspect CSV structure before importing it into an application.
Worked example
Turn a customer export with headers into an array of JSON objects.
Limitations and responsible use
- Uploaded files are limited to 20 MB.
- Automatic type detection can interpret numeric and boolean-looking text as typed JSON values.
- Duplicate or empty headers can produce ambiguous object properties and should be cleaned first.
Frequently asked questions
What happens without a header row?
Rows are represented as arrays rather than objects with named properties.
Are quoted commas supported?
Yes. A quoted delimiter remains part of its field value.