JSON to CSV Converter
JSON to CSV ConverterJSON → CSV
About JSON to CSV
This tool converts JSON data to CSV (Comma-Separated Values) format, making it easy to import data into spreadsheets like Excel or Google Sheets. It supports nested objects (which can be flattened), arrays, and various delimiter options. The converter automatically handles special characters and escapes values as needed.
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About JSON to CSV Conversion
Converting JSON to CSV is essential when you need to work with data in spreadsheet applications like Microsoft Excel, Google Sheets, or LibreOffice Calc. While JSON is great for APIs and programming, CSV's tabular format is ideal for data analysis, reporting, and visualization.
This free tool handles the complexity of converting nested JSON structures into flat CSV format. It automatically extracts all unique keys as column headers and properly escapes special characters to ensure your CSV file is valid and ready to use.
All processing happens directly in your browser - your data never leaves your device, ensuring complete privacy and security.
Features
Nested Object Flattening
Automatically flatten nested JSON objects into dot-notation columns (e.g., "address.city").
Multiple Delimiters
Choose between comma, semicolon, tab, or pipe delimiters based on your needs.
Header Row Control
Include or exclude header row based on your import requirements.
Array Handling
Arrays are automatically converted to JSON strings to preserve data integrity.
Instant Download
Download your converted CSV file with one click, ready to import anywhere.
Special Character Escaping
Properly escapes quotes, commas, and newlines in values for valid CSV output.
Common Use Cases
API Data Export: Convert API responses to spreadsheet format for analysis.
Database Migration: Transform JSON exports to CSV for database import.
Report Generation: Create reports from JSON data in familiar spreadsheet format.
Data Sharing: Share data with stakeholders who prefer Excel over JSON.
Bulk Editing: Edit JSON data more easily using spreadsheet tools.
Frequently Asked Questions
What JSON structures are supported?
The converter supports JSON arrays of objects (most common), single objects, and objects containing arrays. Nested objects can be automatically flattened into dot-notation columns.
How are nested objects handled?
When "Flatten nested objects" is enabled, nested properties are converted to dot-notation columns (e.g., {address: {city: "NYC"}} becomes "address.city"). When disabled, nested objects are converted to JSON strings.
Which delimiter should I use?
Comma is standard and works in most applications. Use semicolon for European locales where comma is the decimal separator. Tab is useful for avoiding delimiter conflicts, and pipe is common in data pipelines.
Is my data secure?
Yes, absolutely. All conversion happens in your browser using JavaScript. Your JSON data never leaves your device and is not sent to any server.