Convert JSON to CSV
Convert JSON arrays to CSV. Nested objects are flattened to dot.keys; opens cleanly in Excel (UTF-8 BOM).
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How to: JSON to CSV
- Select a JSON file.
- Choose a delimiter.
- Download the CSV.
CSV opens in Excel, Google Sheets and Numbers, making it ideal for analysing API data or sharing it with non-developers.
Common uses
- Analyse API responses in a spreadsheet.
- Share app data with colleagues.
- Import JSON into tools that accept CSV.
Tips for best results
- Nested objects become dot.key columns.
- A UTF-8 BOM keeps accents correct in Excel.
Flattening nested data
APIs often return nested JSON. Spreadsheets need flat columns, so nested fields become dot-notation headers such as user.name or address.country. Arrays are written as text in one cell so nothing is lost.
Opening in Excel correctly
The file includes a UTF-8 byte order mark so Excel shows accents and non-Latin characters correctly. In Google Sheets, use File → Import to load the CSV.
Common sources
Exports from APIs, NoSQL databases, analytics tools and web scrapers are often JSON. Converting to CSV lets business teams review the data in familiar spreadsheet tools.
Why use FreePDF for JSON to CSV?
| FreePDF | Typical upload-based sites | |
|---|---|---|
| Files uploaded to a server | No – processed on your device | Yes |
| Sign-up required | Never | Often for bigger jobs |
| Hourly / daily task limits | None | Common on free plans |
| Watermark on output | Never | Sometimes |
| Works offline after loading | Yes, for most tools | No |
Frequently asked questions
What input is supported?
A JSON array of objects, or an object containing such an array.
Are nested objects supported?
Yes, they become dot.key columns.
Is JSON to CSV really free?
Yes. Every tool on FreePDF is 100% free with no file limits, no sign-up and no watermarks. The site is supported by unobtrusive ads.
Are my files uploaded to a server?
No. FreePDF processes your files directly in your browser using JavaScript. Your documents never leave your device, so they stay completely private.
Does it work on mobile?
Yes. FreePDF works in any modern browser on Android, iPhone, iPad, Windows, Mac and Linux.