Privacy Policy

1. Data we do NOT collect

We do not collect, transmit, store, or process:

• ✗The content of your JSON files
• ✗The CSV output generated by the tool
• ✗Your IP address (beyond standard web server logs from the CDN)
• ✗Your name, email, or any other personal identifiers
• ✗Usage analytics or behaviour tracking data
• ✗Cookies for advertising or cross-site tracking

2. Client-side processing

The JSON-to-CSV conversion is implemented entirely as client-side JavaScript running in your browser tab. When you paste JSON, upload a file, or click Convert:

• →File reading uses the browser's FileReader API — no upload occurs
• →Conversion runs in-memory using JavaScript objects and strings
• →The CSV output is created as a Blob in browser memory
• →Download uses an Object URL — no server involved
• →When you close the tab, all data is discarded

3. localStorage usage

The tool uses your browser's localStorage to improve your experience. This data is stored only on your device and is never transmitted to us:

• →Your most recent JSON input (so you can resume after a page refresh)
• →Your option preferences (delimiter, flattening settings, etc.)
• →A history list containing metadata only: row count, column count, timestamp, and a short text preview of the first 80 characters
• →Your theme preference (dark or light mode)

You can clear all localStorage data at any time using the "Clear all" button in the converter, or by clearing your browser's site data in your browser settings.

4. Infrastructure and hosting

This website is hosted on Vercel. Vercel may log standard web server request metadata (such as IP addresses and user agents) for security and abuse prevention purposes, in accordance with their own privacy policy. We do not have access to this data in a form that identifies individual users.

5. Third-party services

The tool loads web fonts from Google Fonts. This involves a request to Google's servers. Google's privacy policy applies to that request. No other third-party scripts, analytics, or tracking services are loaded.

6. Children

This tool does not knowingly collect any information from children under 13. The tool does not collect personal information from anyone.

7. Changes to this policy

If we make material changes to this privacy policy, we will update the date at the top of this page. Given the nature of this tool (no data collection), meaningful changes are unlikely.

8. Contact

If you have questions about this privacy policy, please contact us.