In short: the Supplement Checker extension does not collect, store or send any data about you.
Applies to Supplement Checker version 1.1 and later. Last updated 5 October 2026.
How it works
When you click the extension's icon on a web page, it reads the text of that tab only, works out the results inside your browser, and shows them in its pop-up. Nothing is sent to ShilNepal, to a server or to any third party. When you close the pop-up, what it read is discarded.
What it handles
| Information | Collected? | What happens to it |
|---|---|---|
| Text of the product page you open it on (title, price, ingredient and label text) | No | Read when you click the icon. Analysed in your browser. Discarded when the pop-up closes. |
| A screenshot of the visible tab, if you press Scan screen | No | Held in memory and turned into text on your device. Never saved, never uploaded. |
| An image you upload or paste | No | Same as a screenshot: processed on your device and discarded. |
| Personal information, accounts, email addresses | No | The extension has no accounts and asks for none. |
| Browsing history, other tabs, cookies | No | Not read. It only looks at the tab you opened it on. |
| Analytics, advertising or tracking identifiers | No | None. The extension has no analytics and shows no ads. |
| Anything stored on your computer | No | It does not use cookies, local storage or any other storage. |
The extension makes no network requests of its own. It has no server.
Permissions and why they are needed
activeTab
Lets the extension read the page you are looking at, and take a screenshot of it if you press Scan screen. Chrome only grants this for the tab you opened the extension on, and only after you click its icon. It does not give access to all your websites.
scripting
Lets the extension run its page-reading step inside that one tab when you open it.
Security setting for label scanning
The extension's security policy includes wasm-unsafe-eval. This is the minimum setting WebAssembly needs, and the label-scanning engine uses WebAssembly. It does not allow remote code. All code ships inside the extension.
The extension asks for no host permissions, no "read and change all your data on all websites", and no access to your browsing history.
Software it includes
Label scanning uses Tesseract.js and its English language data, bundled inside the extension and released under the Apache 2.0 licence. It runs entirely on your device and contacts no online service. Ingredient notes, upper levels and exchange rates are built in, so they are not downloaded.
Links in the pop-up
The pop-up has links to ShilNepal's website and to public sources such as the NIH fact sheets. They open only when you click them. Links to shilnepal.com carry a short source tag so ShilNepal can tell a visit came from the extension. Visiting a website is covered by that website's own policy.
General information only
Supplement Checker reads text from a page or an image, so it can misread. Its notes are general information, not medical advice. Check the product label, and speak to a health professional about what suits you.
Changes to this page
If the extension's behaviour changes, this page will be updated and the date above changed before the new version is released.
Contact
ShilNepal, Archerfield, Queensland, Australia. Email info@shilnepal.com.
About this web page
This web page is hosted on shilnepal.com. Visiting it is covered by the store's privacy policy, not by this page, which describes the browser extension only.