Free Client-Side CSV to JSON Converter Utility

Secure, high-performance local data transformation.

Local Only • Real-time

Input Data

Drag & drop CSV or browse files

UTF-8, ISO-8859-1 support

Or Paste Raw CSV Data

Parser Controls

Auto-Detect Delimiter

Detect , ; \t or |

Has Header Row

Use 1st row as keys

Infer Data Types

Convert numbers/bools

Output Format

JSON Indentation

JSON Preview