Is this JSON to CSV converter free to use?

Yes, our JSON to CSV converter is completely free and works directly in your browser.

Will my data formatting stay intact?

Yes, your JSON structure and values are preserved, and nested objects are properly separated into tables.

Can I use this tool on mobile devices?

Yes, it works smoothly on all mobile browsers that support JavaScript.

Are there any file size limits?

No, there are no file size restrictions. Conversion depends only on your browser's memory capacity.

Which CSV options are available?

You can copy the CSV, export it as a .csv file, and for nested JSON, multiple CSV tables are created automatically.

Which browsers are supported?

All modern browsers are supported, including Chrome, Firefox, Edge, and Safari.

Convert JSON to CSV Online – Nested JSON Supported

📂 Upload JSON

Preview will appear here after conversion...

Converted CSV Output

Copy or download the generated file below. If JSON is nested use multiple file downloader.

✅ Conversion Successful!

Instantly convert your JSON files or strings into fully structured CSV format with our free, browser-based JSON to CSV converter. Whether your JSON is simple or deeply nested, this tool efficiently transforms it into CSV tables while preserving relationships, and lets you preview, copy, or download the result. All processing happens client-side in your browser — no uploads, no servers, and full privacy.

Key Features of the JSON to CSV Converter

Fast and Accurate Conversion

Upload or paste your JSON data, click convert, and get accurate CSV output instantly. Nested JSON objects and arrays are automatically transformed into separate CSV tables with parent-child relationships maintained using reference keys.

Live Preview of JSON

The preview panel displays your JSON in a clear, syntax-highlighted format. It helps you validate your data before conversion and ensures that all nested objects are visible.

Copy and Download Options

After conversion, you can either copy the CSV output to your clipboard or download it as a .csv file. Nested JSON generates multiple CSV tables labeled for clarity, making it easy to manage complex data structures.

Client-Side, Secure, and Offline

All conversion happens entirely in your browser. No data is sent to external servers, keeping your JSON data private and secure.

Error Handling and Validation

The tool automatically detects invalid JSON. If the JSON is invalid, the preview shows “❌ Invalid JSON” and disables the convert button until the JSON is corrected.

How to Convert JSON to CSV

Step 1: Paste or Upload JSON

Paste your JSON string directly into the editor or use the Upload JSON button to select a JSON file from your device.

Step 2: Preview Your JSON

The tool automatically shows a syntax-highlighted preview of your JSON. Nested objects and arrays are fully displayed for clarity.

Step 3: Convert JSON to CSV

Click the Convert JSON button. The converter parses your JSON, creates one or more CSV tables if necessary, and displays them in the output section.

Step 4: Copy or Download CSV

Use the Copy Output button to copy the CSV to your clipboard or Export File to download it as a CSV file. Multiple tables from nested JSON are included with clear section headings for easy reference.

Advanced Functionality

Nested JSON Handling

The converter automatically detects nested arrays and objects and generates separate CSV tables for each nested structure. Parent-child relationships are maintained with reference IDs, making the exported data ready for complex spreadsheet analysis.

Toast Notifications

Visual feedback confirms successful conversions or copy actions. The toast appears at the top of the output panel, ensuring you never miss a confirmation.

Multiple File Download (Optional)

For JSON with multiple nested structures, you can export each table as separate CSV files for organized data handling.

Other Useful JSON Converters

Frequently Asked Questions (FAQ)

Is this JSON to CSV converter free?

Yes, it is completely free and works entirely in your browser without any installations.

Does the conversion happen online or offline?

All conversion is performed client-side in your browser. No data is uploaded to any server.

Can this tool handle nested JSON?

Yes, nested objects and arrays are automatically converted into separate CSV tables with proper parent-child relationships.

Can I copy or download the CSV output?

Yes, you can copy the CSV to your clipboard or download it as a .csv file using the buttons provided.

What happens if my JSON is invalid?

The preview panel will show ❌ Invalid JSON and the convert button will remain disabled until the JSON is corrected.

Is my data secure during conversion?

Yes, all processing is done locally in your browser. Your JSON data never leaves your device.

Do I need to install any software?

No, the converter runs entirely in your browser, supporting all modern browsers like Chrome, Firefox, Edge, and Safari.