DEVELOPER TOOLS

CSV to JSON Converter

Convert CSV or TSV tables to JSON, JSON Lines, or turn JSON arrays back into spreadsheet-friendly CSV.

Free to use No sign-up Runs in your browser

ConversionDelimiter

First row contains column names Output JSON Lines (one record per line)

Conversion happens locally in your browser. Your data is not uploaded.

Convert CSV and JSON data

Choose a conversion direction, paste your data and convert. CSV parsing supports quoted fields, escaped quotes and line breaks inside quoted cells. The delimiter can be detected automatically or selected as comma, tab or semicolon.

CSV rows can be converted into objects using the first row as headers, or kept as arrays when there is no header row. JSON-to-CSV accepts arrays of objects and quotes fields when spreadsheet formats require it.

Format and validate JSON with the JSON Formatter, or encode text with the Base64 Converter.