CSV - JSON Converter
Convert between CSV and JSON formats with support for headers and nested data.
CSV Input
JSON Output
Features:
CSV → JSON
Parses quoted fields, commas, and line breaks; optionally maps rows to objects using the first line as headers.
JSON → CSV
Converts arrays of objects into rows, gathering all keys and leaving missing values blank.
Header Handling
No headers? We'll generate
col_1, col_2, … automatically.Private by Design
Everything happens in your browser—nothing is uploaded.