Tip: Press Ctrl + Enter to convert.
Instantly convert your JSON data into CSV format — free, fast, and secure.
Paste your JSON, upload a file, or drag and drop your data below. Within seconds, get a clean, downloadable CSV file ready for Excel, Google Sheets, or any database import.
👉 No signup required. No data stored. Everything happens in your browser.
JSON (JavaScript Object Notation) and CSV (Comma-Separated Values) are two of the most widely used formats for storing and exchanging data.
Converting JSON to CSV helps when you want to take hierarchical data (like an API response) and represent it in a simpler, table-like form.
JSON Input:
[
{"name": "Alice", "age": 25, "city": "London"},
{"name": "Bob", "age": 30, "city": "New York"}
]
CSV Output:
name,age,city
Alice,25,London
Bob,30,New York
With our online JSON to CSV converter, you can achieve this in a click — no coding or command line required.
Follow these simple steps:
You can also convert JSON arrays, nested objects, and complex structures — our converter automatically detects and flattens them intelligently.
Different data formats serve different purposes. JSON is perfect for machines; CSV is better for human-readable tabular data. You’ll often need JSON → CSV conversion when:
There are many online converters — but most are either slow, unsafe, or inaccurate with complex JSON.
JSONFormatterPro’s converter is built to handle real-world data with accuracy and speed.
Here’s what makes it stand out:
Instant conversion, even for large JSON files. You’ll see your CSV output in milliseconds.
Nested objects? Arrays within arrays? No problem. The converter intelligently flattens JSON and ensures proper column mapping.
Your JSON data never leaves your browser. Conversion happens locally using JavaScript — completely secure and private.
Change delimiters (comma, semicolon, or tab), choose line endings (Windows/Mac/Linux), and decide whether to quote field values.
Download the CSV file instantly or copy the output text. No email, signup, or waiting.
The generated CSV file works seamlessly with Excel, Google Sheets, MySQL, PostgreSQL, and all major spreadsheet and database software.
Behind the scenes, our tool parses the JSON input and maps each key–value pair into columns and rows.
The tool validates and parses your JSON data to ensure it’s correctly structured.
If the JSON has nested objects, the converter “flattens” them — merging nested keys using dot notation.
Example:
{
"user": {"name": "Alice", "email": "alice@mail.com"},
"active": true
}
becomes:
user.name,user.email,active
Alice,alice@mail.com,true
Each JSON object becomes a CSV row. Missing keys are filled with blanks to maintain consistent columns.
Once converted, you can view, copy, or download the CSV file — ready for use anywhere.
To make conversion flexible and accurate, JSONFormatterPro’s tool supports a few advanced options:
| Option | Description |
|---|---|
| Flatten JSON | Automatically expands nested structures using dot notation |
| Custom Delimiter | Choose between comma, tab, or semicolon |
| Quote Strings | Optionally enclose text fields in quotes |
| Escape Characters | Handles special characters like commas, quotes, and newlines |
| Header Control | Include or exclude header row |
These features ensure compatibility across different tools and formats.
Yes — 100%.
Unlike other online tools, we don’t upload or store your data.
All conversions happen directly in your browser using JavaScript.
That means:
Your JSON input stays completely private.
Our JSON to CSV tool supports a variety of JSON formats, including:
{})[{}])Even complex API responses or nested arrays are parsed correctly and converted into tabular CSV data.
Many APIs return JSON data. Instead of writing code to parse it, you can paste the API response directly here and get a downloadable CSV.
Excel doesn’t support JSON directly. Converting to CSV lets you open your JSON data instantly in a spreadsheet.
When moving data between systems that use different formats, CSV is often the simplest bridge format.
Power BI, Tableau, and Google Data Studio all work easily with CSVs. Use the converter to prepare JSON datasets for analysis.
Developers frequently convert JSON logs, configs, or test data into CSV for quick inspection or reporting.
Even with robust parsing, certain errors may occur if the input JSON is invalid or inconsistent.
Missing commas, unclosed braces, or extra characters can cause parsing errors.
Tip: Validate your JSON first using our JSON Validator.
When JSON objects in an array have different keys, blank cells may appear in the CSV.
For very large JSON files (50MB+), browser memory may be limited. Consider splitting your data or using a desktop-based converter.
Q1: What is a CSV file?
A CSV (Comma-Separated Values) file stores tabular data as plain text — each line is a row, and values are separated by commas. It’s compatible with Excel, Sheets, and most databases.
Q2: Is this converter free?
Yes, it’s 100% free to use. No signups, no limits.
Q3: Can I convert JSON arrays?
Yes. The converter automatically handles arrays and objects within arrays.
Q4: Does it support nested JSON?
Absolutely. It flattens nested objects intelligently, keeping the hierarchy clear in column headers.
Q5: Is my data stored or shared?
No. All processing is done locally in your browser. Your JSON data never leaves your device.
Q6: Can I upload large JSON files?
Yes, but file size depends on your browser’s memory capacity. For very large files, we recommend breaking them into smaller chunks.
Q7: What if my CSV looks distorted?
Ensure your JSON is valid and consistent. You can use JSON Formatter to prettify and correct your JSON before conversion.
If you work frequently with JSON data, check out our other free tools:
These tools make JSONFormatterPro your one-stop destination for every JSON operation — formatting, validation, conversion, and analysis. You can also try Json Sorter, Json Escape, Json Reader, Json Minify and more.
For developers curious about the internals — our converter uses a lightweight JSON parser built in JavaScript.
It recursively traverses each object and flattens nested properties into key paths.
Pseudocode example:
function flattenJSON(obj, parentKey = '', result = {}) {
for (let key in obj) {
let propKey = parentKey ? `${parentKey}.${key}` : key;
if (typeof obj[key] === 'object' && !Array.isArray(obj[key])) {
flattenJSON(obj[key], propKey, result);
} else {
result[propKey] = obj[key];
}
}
return result;
}
Once flattened, it joins headers and rows using a chosen delimiter (comma by default).
This ensures the final CSV is consistent, valid, and ready for any spreadsheet or database import.
JSONFormatterPro.com is trusted by developers, analysts, and data professionals worldwide.
Our tools are designed for reliability, privacy, and performance.
What makes us different:
Whether you’re debugging APIs, validating responses, or preparing data for analytics — JSONFormatterPro simplifies your workflow.
Converting JSON to CSV doesn’t have to be complicated.
With JSONFormatterPro’s JSON to CSV Converter, you can transform your data into clean, tabular format in seconds — securely, accurately, and for free.
Use it to:
Paste your JSON → click Convert → Download CSV. That’s it.
Try it now and make JSON to CSV conversion effortless.