CSV to JSON Converter
Convert CSV rows into a clean JSON array of objects — right in your browser. Handles quoted fields and commas, no upload.
How to convert CSV to JSON
Paste your CSV with a header row on top, then click convert. Each row turns into a JSON object keyed by the column headers, and the whole set becomes a nicely-indented JSON array you can copy or download.
This is great for feeding spreadsheet exports into an app or API. The parser respects quoted fields, so commas and line breaks inside cells won't break the output. Everything runs locally in your browser.
Frequently asked questions
How is the CSV interpreted?
The first row is treated as the header, and each following row becomes a JSON object whose keys are the column names. The result is an array of these objects.
Does it handle quoted values with commas?
Yes. The parser follows the standard CSV rules, so commas, quotes, and newlines inside double-quoted fields are handled correctly.
What if a header cell is empty?
Empty header cells are given a fallback name like column_1 so no data is dropped.
Are values converted to numbers or booleans?
No — every value is kept as a string to avoid unexpected type changes. You can cast values afterward in your code if needed.