Chrome Web Store Policy

Chrome Extension Privacy Policy

Numbers to Letters Converter Extension

Last updated: September 12, 2026

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Privacy First and Offline: The Numbers to Letters Chrome Extension runs 100% locally in your browser. We do not collect, transmit, store, or sell any of your data, keystrokes, or converted outputs.

1. Single Purpose and Functionality

The Numbers to Letters Converter extension is designed with a single, clear purpose: to provide an offline numerical encoder and cipher converter directly within the browser toolbar. It converts numbers to letters using systems such as A1Z26, NATO phonetic alphabet, Roman numerals, spelled out English words, and chemical elements.

2. Information We Do NOT Collect

Because all logic is executed entirely on your device via client side JavaScript, we do not collect or process:

No User Input: Numbers, text, or ciphers you type or paste are never transmitted or viewed by us.
No Conversion Results: The output generated is displayed only in your active popup and is never sent to any server.
No Personally Identifiable Information (PII): We do not collect names, email addresses, IP addresses, or account credentials.
No Browsing Activity: We do not monitor, read, or track web pages you visit, tabs you open, or search queries you make.
No Analytics or Tracking: The extension contains no analytics beacons, tracking pixels, or third party advertising SDKs.

3. Permissions and Justifications

In accordance with Google Chrome Web Store policies, the extension requests the absolute minimum permissions necessary to function:

Permission	Purpose and Justification
`clipboardWrite`	Used exclusively when the user clicks the Copy button to place the converted result onto their system clipboard. The extension does not read from or monitor your clipboard (it does not request or use `clipboardRead`).
`storage`	Used exclusively via `chrome.storage.local` to save your user preferences locally on your machine (such as your preferred separator, letter case, active tab, and automatic conversion toggle) so your settings persist across popup sessions. No personal data is stored.

4. No Remote Code Execution

This extension strictly adheres to Manifest V3 requirements. It does not load, execute, or reference any external or remote JavaScript, CSS, or fonts. All application logic, stylesheets, and assets are packaged 100% locally within the extension bundle.

5. Third Party Sharing and Sale of Data

We do not sell, rent, trade, or transfer any user information to third parties. There are no advertising networks, data brokers, or marketing partners integrated into the extension.

6. Limited Use Compliance

Our use of information received from Chrome Web Store APIs adheres to the Chrome Web Store Developer Program Policies, including the Limited Use requirements:

The extension only requests permissions directly required to implement user facing features.
Data accessed via permissions is used exclusively to provide or improve user facing features within the extension.
Data is never transferred to third parties or used for credit assessment, targeted advertising, or lending purposes.

7. Changes to This Extension Privacy Policy

If we update the extension with new capabilities that affect privacy, we will update this document and post the revised date above. Because the extension runs offline and does not collect contact information, we encourage users to review this page periodically.

8. Contact Us

If you have questions, concerns, or feedback regarding this Extension Privacy Policy, please contact us through our website at:

Contact Support

🛡️ Summary

Numbers to Letters Converter is built to respect your privacy. Everything stays on your computer. Zero tracking, zero telemetry, 100% offline utility.