Privacy Policy

This policy applies to the “Stream Video Downloader” browser extension (“the extension”) and the companion website at this domain (“the website”), together “the Service.” It explains exactly what the Service does and does not do with information on your device.

We do not collect any personal information. Specifically, the Service does not collect or transmit to us:

• Personally identifiable information (name, email, address, phone, ID numbers)
• Authentication information, passwords, or cookies
• Financial or payment information
• Health information
• Personal communications (emails, messages, chats)
• Location data
• Web browsing history, the list of sites you visit, or your search activity
• Analytics, usage metrics, device identifiers, or telemetry

We do not maintain user accounts, and we operate no server that receives your data. The Service has no sign-up and no login.

Understanding the data flow makes clear why no personal data reaches us:

• Detection. While you browse, a content script in the extension inspects the current page and its network responses to recognize video streams (HLS / m3u8 playlists and direct MP4 files). This analysis happens locally in your browser. The result — a list of detected video URLs for the current tab — is held in the extension only and is shown to you in the popup.
• Fetching a stream. When you choose to play, convert, or download, the detected video URL is requested directly from the website that hosts that video (and, where needed, through the extension’s privileged fetch to avoid cross-origin restrictions). These requests go to the video’s own servers — not to us.
• Playback & conversion. Playing a stream and converting m3u8 to MP4 happen inside your browser. Conversion uses WebAssembly (ffmpeg) running locally on this website’s page; the video’s segments are downloaded to your browser, combined into an MP4 on your device, and saved by you. The video is never uploaded to us.
• Downloading. When you download a file, it is saved to your computer using your browser’s download mechanism. The file does not pass through any server we control.

To function, the Service keeps a small amount of information in your browser’s local storage and cache. This data stays on your device, is never sent to us, and you can clear it at any time (see “Your choices” below). It includes:

• Detected videos for the active tab, kept only so the popup can list them; cleared when you navigate or close the tab.
• Short-lived technical tokens that some video sites issue to their own pages (for example, an application-id request header). When present, these are cached locally so repeat detections on the same site work without re-fetching. They are used solely to request the video you asked for, are stored only on your device, and are never transmitted to us.
• A temporary fetch cache that briefly holds responses while detecting and assembling a stream, to reduce duplicate network requests. Entries expire automatically.

Chrome requires the extension to declare the capabilities it uses. Each is requested only to deliver the Service’s single purpose — detecting and saving video you choose:

• Access to websites you visit (host access). A video can appear on any site, so the detector must be able to run on the page you are viewing and fetch the detected stream. The extension does not record which sites you visit and excludes YouTube.
• webRequest. To read response content-types and headers so it can recognize when a page is loading a video stream. It does not block or log your requests.
• declarativeNetRequest. To replay a page’s own headers on the extension’s fetch of the detected stream so protected content delivery networks return the video. Rules are session-scoped only.
• downloads. To save a video file to your computer when you click Download.
• storage. To keep the local, short-lived technical data described above.
• tabs. To associate detected videos with the tab that produced them, show the per-tab count badge, and open the player or converter in a new tab.

We do not sell, rent, or share any data with third parties — we have no data to share. The Service does involve the following parties only in the technical sense of normal web requests you initiate:

• The video sites you visit. Requesting a stream contacts that site’s own servers, exactly as your browser would when playing the video normally.
• The conversion runtime. The WebAssembly (ffmpeg) component used for m3u8-to-MP4 conversion is loaded from a public content delivery network and then runs entirely in your browser. It does not transmit your video anywhere.
• Website hosting. This website is served as static files by our hosting provider. Like any web host, it may process standard server request logs (such as IP address and timestamp) for security and reliability; we do not use these for tracking or combine them with any other data.

All extension logic ships inside the extension package and is reviewed by the Chrome Web Store. The extension does not download or execute additional code from a remote server.

The Service is a general-purpose utility and is not directed at children. Because we collect no personal information from anyone, we collect none from children.

• You can remove the extension at any time from your browser’s extensions page; this deletes its local data.
• You can clear the extension’s stored data and cache through your browser’s site/extension data controls.
• Because we hold no personal data about you, there is nothing for us to access, correct, export, or delete on your behalf — but you are welcome to contact us with any question.

The Service is intended for saving content you own or have permission to download. You are responsible for complying with the terms of service of the sites you visit and with applicable copyright law. The Service does not operate on YouTube.

If this policy changes, we will update the “Last updated” date above and post the revised version on this page. Material changes will be reflected here before they take effect.

Questions about this policy or your privacy? Email us at wise.solutionbd@gmail.com.