CSV ↔ JSON Converter

Convert CSV to JSON and JSON to CSV right in your browser — quoted fields, type detection, and multiple delimiters. Nothing leaves your machine.

Convert between CSV and JSON without uploading anything to a server. Paste a CSV with a header row and get clean JSON objects, or paste a JSON array and get a properly quoted CSV back. The conversion updates as you type.

Both directions: CSV → JSON and JSON → CSV, with a one-click toggle
Real CSV parsing — quoted fields, embedded commas, and escaped quotes are handled correctly
Type detection for CSV → JSON: numbers and booleans come out as real JSON types, not strings
JSON → CSV accepts arrays of objects, single objects, arrays of arrays, and flat lists
Choose the delimiter (comma, semicolon, or tab) for either direction
Copy the result, download it as a .json or .csv file, or export/import your work as JSON
Everything stays in your browser — nothing is sent anywhere

First row is a header Detect numbers & booleans Delimiter

Input

Output