JSON to CSV Converter

How to Convert JSON to CSV

Our JSON to CSV converter transforms structured JSON data into comma-separated values format. Simply paste your JSON array, configure the options, and get formatted CSV output ready for Excel, Google Sheets, or any spreadsheet application.

Features

• Multiple delimiter options: Choose from comma, semicolon, or tab delimiters
• Flatten nested objects: Automatically convert nested JSON structures to flat CSV with dot notation (e.g., user.address.city)
• Header row control: Include or exclude column headers in your CSV output
• Proper escaping: Handles special characters, quotes, and newlines correctly
• Preview mode: See the first few rows before downloading
• Array support: Works with both array of objects and array of arrays

Supported JSON Formats

This tool accepts two types of JSON input:

• Array of objects: Each object becomes a row, with object keys as column headers (e.g., [{name: "Alice", age: 30}, ...])
• Array of arrays: Each inner array becomes a row (e.g., [["Alice", 30], ["Bob", 25]])

Use Cases

• Exporting API responses to spreadsheet format
• Converting database query results to CSV
• Creating Excel-compatible files from web app data
• Preparing JSON data for data analysis in spreadsheets
• Migrating data from NoSQL to relational databases
• Sharing structured data with non-technical users

Nested Object Flattening

When the "Flatten nested objects" option is enabled, deeply nested JSON structures are automatically converted to flat CSV columns using dot notation. For example:

• {user: {name: "Alice", address: {city: "NYC"}}}
• Becomes: user.name, user.address.city

Privacy First

All conversion happens directly in your browser. Your JSON data is never sent to any server, ensuring complete privacy and security for sensitive data. Perfect for converting confidential datasets or personal information.

Tips for Best Results

• Ensure your JSON is valid before converting
• Use consistent object keys across all array elements for clean CSV output
• Enable "Flatten nested objects" for complex data structures
• Choose the right delimiter for your target application
• Preview the output before downloading to verify the format