Flatten JSON Data for Easy Analysis
Developers love JSON, but business analysts and marketing teams usually need data in a spreadsheet. Our JSON to CSV Converter takes complex, nested JSON arrays and intelligently flattens them into a simple, tabular CSV file.
Handling Nested Data Structures
JSON's primary strength is its ability to hold nested objects and arrays. When converting to CSV, this creates a challenge. Our tool solves this by:
- Dot Notation Headers: Nested keys are flattened into column headers like
user.address.street. - Array Handling: Options to either stringify inner arrays or duplicate rows for one-to-many relationships.
- Missing Keys: Automatically fills in blank cells if certain JSON objects are missing keys present in others.
How to Use This Tool
- Upload or Input Data: Select your file or paste your data directly into the tool interface. Everything remains on your device.
- Configure & Process: Adjust any optional settings if necessary. The tool will process your data instantly inside your browser.
- Download Result: Preview the output and click the download or copy button to save your final results.
Frequently Asked Questions
Can I paste a URL to fetch JSON?
Currently, you must paste the raw JSON text or upload a .json file from your computer.
What if the JSON is just one object, not an array?
The tool will treat the single object as a one-row CSV, extracting its keys as the headers.
Is the conversion processed securely?
Yes, all parsing and flattening are done client-side using JavaScript. Your data never leaves your browser.