CSV to JSON converter
Convert a CSV table with a header row into a JSON array of objects, preserving each cell’s contents as text.
Colors cover the first 20,000 characters. The full content is preserved for copying and downloading.
How to use
- Paste CSV with column names in the first row.
- Choose the delimiter used in your data: comma, semicolon, or tab.
- Convert, review the syntax-highlighted JSON, and copy the result. If an error appears, check quotes, headers, and the number of fields per row.
How it works
Use up to 100,000 characters, 10,000 records, nonempty unique headers, and the same number of fields in every row. Output is limited to 500,000 characters.
An example
A CSV containing “name,zip” and “Ana,01234” produces [{"name":"Ana","zip":"01234"}], preserving the ZIP code’s leading zero.
Common questions
Does the converter accept commas inside a cell?
Yes, when the field is enclosed in double quotes. Quotes within that field must be doubled; line breaks can also occur within quoted fields.
Are numbers and dates converted automatically?
No. Values remain strings to preserve leading zeros and avoid incorrectly interpreting dates or decimal separators.