How to convert JSON to CSV
- Upload – click “Choose files” or drag your JSON files into the box above (.json, .jsonl, .ndjson).
- Convert – press the button; Kitbly processes your file on a secure server in seconds.
- Download – save your CSV. The file is deleted from our servers automatically after 1 hour.
About JSON to CSV
Flatten JSON into a CSV file. Nested fields become dotted columns, and the file is saved as UTF-8 with a BOM so Excel shows Korean, Chinese, Cyrillic and accented text correctly.
Frequently asked questions
Why does Excel show broken characters in other CSVs?
Excel needs a hint (BOM) to read UTF-8. Our CSV includes it, so Korean and other scripts display correctly.
What if my JSON has several arrays?
You get one CSV per array, bundled in a ZIP.
Is my document kept?
No. Files travel over an encrypted HTTPS connection, are converted automatically and are permanently deleted after 1 hour. Nobody looks at them and they are never used for AI training.
Is JSON to CSV free?
Yes – completely free, with no account, no daily limit and no watermark.
Are my files safe?
Files are sent over an encrypted HTTPS connection, processed automatically by our servers, never shared and permanently deleted after 1 hour. Nobody looks at your documents.
Do I need to install software or sign up?
No. It works in any browser on Windows, Mac, iPhone and Android. No account needed.
Is there a watermark?
Never. Your converted files are clean, with no watermark or branding.