Free Online JSON to CSV Converter

Getting Started

Converting JSON to CSV is simple and fast:

Basic Usage

1. Input JSON: Paste your JSON data or upload a JSON file.
2. Configure Options: Choose delimiter, quote character, and formatting preferences.
3. Preview: Review the converted CSV data in the preview area.
4. Download: Click "Download CSV" to save the converted file.
5. Copy: Or copy the CSV data directly to clipboard.

Key Features

• Multiple Input Methods: Paste JSON text or upload JSON files
• Nested Object Support: Automatically flatten nested JSON structures
• Array Handling: Convert JSON arrays to CSV rows
• Custom Delimiters: Choose comma, semicolon, tab, or pipe separators
• Quote Options: Configure quote characters for text fields
• Header Control: Include or exclude column headers
• Live Preview: See results before downloading
• Batch Processing: Convert multiple JSON files at once
• Excel Compatible: Output works seamlessly with Excel and Google Sheets
• 100% Free: No limits, no watermarks, no registration
• Privacy Protected: All processing happens locally

Supported JSON Formats

• Array of Objects: [{"name": "John", "age": 30}, {"name": "Jane", "age": 25}]
• Nested Objects: {"user": {"name": "John", "address": {"city": "NYC"}}}
• Mixed Arrays: Arrays containing objects with different properties
• Single Object: {"name": "John", "age": 30}
• Complex Structures: Deeply nested JSON with multiple levels

Delimiter Options

• Comma (,): Standard CSV format, compatible with most applications
• Semicolon (;): Common in European locales where comma is decimal separator
• Tab (\t): TSV format, useful for data with commas in values
• Pipe (|): Alternative delimiter for special use cases

Best Practices

• Validate JSON syntax before conversion to avoid errors
• Use consistent property names across all objects in arrays
• Choose appropriate delimiter based on your data content
• Enable headers for better readability in spreadsheets
• Test with small samples before converting large datasets
• Handle nested objects by flattening or selecting specific paths
• Check preview before downloading to ensure correct formatting

Use Cases

• API Data Export: Convert API responses to spreadsheet format
• Database Migration: Transform JSON exports for database imports
• Data Analysis: Prepare JSON data for Excel or statistical tools
• Report Generation: Create CSV reports from JSON logs
• Configuration Export: Convert JSON configs to CSV for bulk editing
• E-commerce Data: Transform product data for inventory systems
• Analytics Export: Convert analytics JSON to CSV for reporting
• Testing Data: Generate CSV test data from JSON fixtures

Handling Complex JSON

• Nested Objects: Automatically flattened with dot notation (e.g., user.address.city)
• Arrays in Values: Converted to comma-separated strings or JSON strings
• Missing Properties: Empty cells for objects missing certain properties
• Different Schemas: All unique properties across objects become columns
• Special Characters: Properly escaped and quoted in output