Privacy Policy

Privacy Policy

Last updated: June 20, 2026

The short version: The Mobile View extension does not collect, store on our servers, transmit, sell, or share any of your data. No analytics, no trackers, no ads, no external servers — everything runs locally in your browser. (This website uses privacy-friendly analytics only after you accept the cookie banner — see the section at the end.)

1. Overview

This Privacy Policy explains how the “Mobile View — Mobile Simulator & Preview” browser extension (the “Extension”, “we”, “our”) handles information. The Extension is built privacy-first and works entirely on your device, with no backend service.

2. What the Extension does

When you click the Extension’s toolbar icon on a regular website, it builds an on-page overlay that shows the same page inside a mobile or tablet device frame. You can switch devices, rotate, scale, synchronize scrolling/clicks/typing between the desktop page and the preview, take a screenshot, and record a short video of the preview. All of this happens locally in the active tab.

3. Information we collect

We do not collect any personal or sensitive user data. The Extension does not:

4. Settings stored on your device

To remember your preferences, the Extension saves a small set of settings locally via the browser’s chrome.storage.local API. This never leaves your device and is not accessible to us. It includes:

It also temporarily stores, in chrome.storage.session (cleared when you close the browser), the list of tabs where the preview is open, so it can be restored after a reload. This contains tab identifiers only — no page content or URLs.

You can erase all of this at any time by removing the Extension.

5. Permissions and why they are used

The Extension requests only what it needs for its single purpose. None of these are used to gather data about you.

activeTab

Act on the page you are currently viewing when you click the icon.

scripting

Inject the preview overlay into the active tab.

declarativeNetRequest

To display the page inside a mobile frame, remove framing restrictions — the X-Frame-Options header and the Content-Security-Policy header (which can carry frame-ancestors framing rules) — and set a mobile User-Agent, only for the preview frame of the active tab, scoped per tab and removed when you close the preview. No requests are blocked, recorded, or sent anywhere.

storage

Save your settings locally on your device (section 4).

notifications

Show a short message when a page cannot be previewed (e.g. chrome:// pages).

tabCapture

Used only by the optional screen-recording feature to record the current tab’s video when you start a recording. The video is processed locally and downloaded to your device — never uploaded or sent anywhere.

offscreen

Runs a hidden offscreen document that performs the recording and encodes the video in the background. All processing stays on your device.

optional host access (<all_urls>)

The Extension can be used on any website you choose to preview, so it needs access to the site you are previewing — solely to render the preview, never to read or send your data. This access is optional: it is not granted at install, but requested at runtime the first time you open a preview, so you stay in control.

6. Network activity

The Extension does not contact any server operated by us and includes no analytics, tracking SDKs, or remotely-loaded code. It bundles a small open-source library for video encoding, which runs entirely on your device and transmits nothing. The only network traffic is your browser loading the website you chose to preview — exactly as it would without the Extension.

7. Screenshots & screen recording

The screenshot feature captures the visible preview, crops it locally, and saves the image to your device as a download. Screenshots are never uploaded or transmitted.

The screen recording feature records the current browser tab using Chrome’s tabCapture API — there is no system “share your screen” prompt, and only the active tab is captured. The video is encoded locally (you can choose MP4 or WebM) and saved straight to your device as a file. Recordings are never uploaded, sent to us, or transmitted to any third party.

8. Data sharing and selling

We do not sell, rent, or share any user data, because we do not collect any.

9. Children’s privacy

The Extension is a general-purpose preview tool, is not directed to children, and collects no personal information from anyone.

10. Data security

Since no data is collected or transmitted, there is no remote store that could be breached. Your settings stay on your own device under your browser’s protection.

11. Changes to this policy

If functionality changes in a way that affects this policy, we will update this page and revise the “Last updated” date above.

12. Trademarks & disclaimer

This Extension is independent and is not affiliated with, endorsed by, or sponsored by Apple Inc., Google LLC, Samsung, or Xiaomi. iPhone, iPad, Pixel, Galaxy and other names are trademarks of their respective owners, used only to describe the device frames the Extension simulates.

13. Contact

Questions about this policy or the Extension: romanserenko23@gmail.com

About this website (mobileview.app)

The numbered policy above covers the Extension. This website itself — the page you are reading — is separate and uses a single third-party service:

Google Analytics

We use Google Analytics 4 to understand basic, aggregated traffic: how many people visit, which pages they open, and roughly where visitors come from. It loads only after you click “Accept” in the cookie banner. If you decline, no analytics cookies are set and Google Analytics is never loaded. We do not collect your name, email, or any personal identifiers, and we never use this data for advertising. You can withdraw consent at any time by clearing this site’s data in your browser. See Google’s Privacy Policy.