Is my data uploaded anywhere?

No. All parsing, preview, and export happen locally in your browser. Your JSON is never sent to a server.

What is the file size limit?

5 MB per input. Larger inputs are rejected before parsing.

Are nested objects flattened?

Yes. Nested objects are flattened into dot-path columns such as userInfo.contact.email.

Are nested arrays expanded into new tables?

No. Arrays inside a row are written to a single cell as a JSON string and are not expanded.

What is the difference between CSV and XLSX?

CSV is a single-table text file. XLSX is a spreadsheet workbook; multiple tables can be exported as separate sheets in one file.

Privacy Policy

Last updated: 2026-06-17

This Privacy Policy explains what information is collected, how cookies and third-party services are used, and how the JSON To Excel Converter handles the JSON you process.

Local processing — your JSON stays on your device

All JSON parsing, table generation, and file export happen entirely in your browser. The JSON you paste or upload is never transmitted to our servers, never stored, and never written to logs.

What data we collect

We may collect anonymous access logs and usage metadata, such as page views, button clicks, language and theme settings, and parse success or failure status. We do not collect raw JSON content, field values, or the contents of files you upload. We do not upload or store the JSON you input.

Cookies

We use cookies and similar technologies for three purposes: essential functionality (such as remembering your language and theme), statistics (understanding how the tool is used in aggregate), and advertising (serving and measuring ads). You can control or delete cookies through your browser settings at any time.

Third-party services

To support the site we may use third-party services including Google AdSense, Google Analytics, and Adsterra (or similar advertising and analytics providers). These providers may use cookies and similar technologies to serve ads and measure traffic, and may collect information such as your IP address, browser type, and pages visited, subject to their own privacy policies.

Personalized advertising

Third-party vendors such as Google use cookies to serve ads based on your prior visits to this and other websites. You can opt out of personalized advertising and review or adjust your ad settings at Google Ads Settings: https://adssettings.google.com/. You can also opt out of some third-party vendors through www.aboutads.info/choices.

Third-party links

Our site and blog may link to external sites that we do not control. We are not responsible for the privacy practices or content of those third-party sites.

Children’s privacy

The tool is not directed to children under 13, and we do not knowingly collect personal information from children.

Your responsibility

Avoid pasting unauthorized or sensitive data. Although processing is local, you are responsible for the data you choose to handle.

Changes to this policy

We may update this Privacy Policy from time to time. The "Last updated" date at the top reflects the most recent revision.

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