JSON to CSV Converter
Convert JSON arrays into CSV format for easy import into Excel or Google Sheets.
Statistics
💡 Quick Tip
JSON arrays convert to CSV with automatic headers. Open the CSV in Excel or Google Sheets for data analysis!
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What is JSON to CSV Converter?
The JSON to CSV Converter is a powerful utility designed to bridge the gap between web data formats and spreadsheet applications. Developers and APIs typically exchange data in JSON (JavaScript Object Notation), which is great for computers but hard for humans to read in bulk.
This tool instantly transforms that hierarchical JSON data into flat, tabular CSV (Comma Separated Values) format. This allows you to open your data directly in Microsoft Excel, Google Sheets, or Apple Numbers for analysis, sorting, and visualization.
How to Use
- Paste or Upload: Paste your JSON array into the input box, or click the Upload button to select a
.jsonfile from your computer. - Review Stats: Check the statistics panel to confirm the number of records, columns, and file size.
- Convert: The conversion happens automatically as you type, or you can click the bright orange Convert button for assurance.
- Download: Click Download to save the result as a
.csvfile, or use Copy to paste it elsewhere.
Key Features
Client-Side Secure
Your data never leaves your browser. All conversion logic runs locally in JavaScript, ensuring 100% data privacy.
Smart Headers
Automatically detects all unique keys from your object array to create a complete CSV header row (A, B, C...).
Excel Compatible
Handles special characters, commas, and newlines by correctly escaping fields, ensuring it opens perfectly in Excel.
Instant Stats
See immediate validation stats: record count, field count, and final file size before you even download.
Frequently Asked Questions
What is JSON to CSV conversion?
It is the process of transforming structured JSON (JavaScript Object Notation) data into a flat CSV (Comma Separated Values) format, making it readable in spreadsheet software like Excel.
How do I convert JSON to Excel?
Simply paste your JSON array into the input box or upload a file. Our tool will instantly generate CSV data. Click 'Download' to save the .csv file, which opens directly in Microsoft Excel.
Is my data secure?
Yes, 100% secure. The conversion happens entirely in your browser using JavaScript. No data is ever sent to our servers.
How does it handle nested objects?
This tool is optimized for arrays of objects. Basic nested values may work, but for complex deep nesting, we recommend flattening your JSON structure first for the best CSV output.
Can I convert large JSON files?
Yes! Since it runs locally on your machine, it can handle relatively large files (up to 5MB recommended for browser performance) without uploading delays.
Do you support arrays of arrays?
Currently, we support arrays of objects (key-value pairs) which map perfectly to CSV columns and rows. Arrays of arrays might need pre-processing.
Is this tool free to use?
Absolutely. FreeTools Pro is completely free, with no hidden costs, subscriptions, or limits.
Does it work on Mac and Windows?
Yes, it works on any device with a modern web browser, including Windows, macOS, Linux, Android, and iOS.
How are special characters handled?
We improved our algorithm to automatically escape commas, quotes, and newlines within your data, ensuring the CSV structure remains valid.
Can I automate this process?
This is a manual web tool. For automation, you would typically use a programming library (like Python pandas or Node.js csv-stringify), but for quick ad-hoc tasks, this tool is perfect.