FreeToolSpace

CSV ↔ JSON Converter

Convert data formats instantly. Parse CSV to JSON or serialize JSON to CSV — updates in real-time.

CSV → JSON

Input (CSV)
Output (JSON)

About this Tool

Data conversion is a common task for developers and data analysts. This tool simplifies the process by running entirely in your browser using PapaParse, a powerful CSV parser.

Features

  • Bi-directional: Switch between CSV-to-JSON and JSON-to-CSV modes.
  • Client-Side: Your sensitive data never leaves your device.
  • Large File Support: Efficient parsing handles thousands of rows in seconds.
  • Real-Time Conversion: Output updates as you type — no button clicks needed.
  • One-Click Download: Get your converted file instantly.

How to Convert CSV to JSON

  1. Paste your CSV data into the input area on the left.
  2. The JSON output appears instantly on the right as you type.
  3. Click Copy or Download to save your result.

How to Convert JSON to CSV

  1. Click "Switch Direction" to change to JSON → CSV mode.
  2. Paste your JSON array into the input area.
  3. The CSV output appears instantly.