Free JSON ↔ CSV Converter

Transform your data instantly. No signup, client-side processing, unlimited conversions.

Conversion Mode:

Input JSON

Drag & drop JSON file here (max 10 MB) or

Or paste JSON (max 10 MB):

1

Quick Samples

JSON

Live Preview

👆 Upload a file or paste data to see preview

Why Choose Our Converter?

🔒

100% Client-Side Processing

Your data never leaves your browser. No uploads, no server logs.

⚡

Lightning Fast

Instant conversions with no server delays. Works offline.

🎯

Smart Detection

Auto-detects CSV delimiters. Handles nested JSON arrays.

💾

Conversion Templates

Save column settings. Reuse for recurring data formats.

⏮️

Undo History

Restore last 50 conversions. Never lose your work.

📊

Flexible Export

Download as CSV, Excel (.xlsx), or formatted JSON.

See the Transformation

Watch your data transform instantly from complex JSON to clean, structured CSV

Raw JSON Data

Input
[
  {
    "name": "Alice Johnson",
    "email": "alice@example.com",
    "score": 95,
    "tags": ["excellent", "top"]
  },
  {
    "name": "Bob Smith",
    "email": "bob@example.com",
    "score": 87,
    "tags": ["good", "improving"]
  },
  {
    "name": "Charlie Brown",
    "email": "charlie@example.com",
    "score": 92,
    "tags": ["excellent"]
  }
]

Formatted CSV Table

Output
nameemailscoretags
Alice Johnsonalice@example.com95excellent; top
Bob Smithbob@example.com87good; improving
Charlie Browncharlie@example.com92excellent

Common Use Cases

See how our converter solves real-world data challenges

📡

API Testing

Convert Postman responses to Excel for analysis

🗄️

Data Migration

Transform database exports between formats

📊

Reporting

Generate CSV reports from JSON analytics

⚙️

Configuration Management

Migrate app configs between JSON and CSV

📈

Excel Integration

Prepare data for spreadsheet imports

🧹

Data Cleaning

Reorder, rename, and filter columns visually

How to Convert in 3 Steps

A simple flow from input to download in under a minute.

  1. 1

    Upload or Paste Data

    Drop a JSON/CSV file or paste content directly (max 10 MB). Supports .json, .csv, and .xlsx files.

  2. 2

    Customize (Optional)

    Pick columns, rename headers, and reorder fields. Save as a template for reuse.

  3. 3

    Download Your Format

    Export as CSV, Excel, or formatted JSON with client-side processing.

Authored by: JSON CSV Converter

Last updated: February 15, 2026