A player inside a player

Open a video on SinParty Tube and the page you see is only a wrapper. The actual playback runs in an embedded iframe, and the stream endpoint appears only after that inner layer has loaded. Ordinary save options and catch-all download tools check the outer page, so they miss the video completely.

Sinpartytube Video Downloader was built for exactly this arrangement. It knows the page layout and URL routing that sinparty.com uses for video, follows the iframe through to the player, and shows the available streams as soon as the player exposes them, instead of running one extraction routine meant for any site.

From page to saved file

Everything starts with playback. Load a SinParty Tube video page, wait until the embedded player area has rendered, and start the video: that is what sets media delivery going, and until the iframe hand-over resolves there is nothing for the extension to find. Then open the popup from the toolbar icon, or use the on-page controls. The extension needs a moment to trace the iframe and scan; once it has, the detected streams are listed and you choose the quality or format you prefer. Starting the download runs the MP4 export, and when it is done the file is saved to your device.

If the popup comes up empty, the embedded player is often still starting, so let the video run for several seconds and open it once more. When the download control does not respond, a page reload followed by fresh playback usually brings it back.

Feature list

• Detection designed around SinParty Tube's video URLs and routing
• Discovery that steps through the iframe to the stream behind the embedded player
• Identification and capture of the video stream formats the player offers
• MP4 output that plays in standard media players, copies easily to other devices and works for a local archive
• A simple popup for starting and managing downloads
• Everything processed inside your browser, with no outside server in the loop
• Account activation via email sign-in with a one-time password

Browsers and installation

Builds are available for Chrome, Edge, Brave and Firefox. They are published as GitHub releases: open the latest one, download the file for your browser, and install it. The release page is also the place to check for browser-specific build files.

Privacy

The extension only interacts with the SinParty Tube pages you visit. It collects no personal data and sends nothing to third parties. Detection, stream handling and the MP4 export all run in the browser itself.

Boundaries

• One video downloads at a time; begin the next after the current one completes.
• Many common formats work, but not every video type on the platform is supported.
• Detection only switches on for SinParty Tube video pages with the expected address; category listings and search results may leave the icon inactive.
• A connection to the internet is required for downloading, and a transfer can halt if your connection wavers or the source has a brief interruption on that stream. Retrying normally gets past it.
• Changes to SinParty Tube's page structure may mean the extension needs an update to keep working.
• Only save content that you own or have explicit permission to download.

FAQ

Will it save any video I find on SinParty Tube?

It is aimed at SinParty Tube video pages on sinparty.com and copes with many common formats, though some video types on the platform may not be supported.

Am I able to run several downloads in parallel?

No. It works through one video at a time, and you can start the next as soon as the current download has finished.

What happens to my personal data?

Nothing leaves your browser for a third party. The extension only interacts with the SinParty Tube pages you open and does not collect personal data.

Which browsers have a build?

Chrome, Edge, Brave and Firefox. Look at the latest release for the exact build file for each.

Why does it find no media on some pages?

Usually the embedded player has not finished loading or the video has not been started, and the iframe has to resolve before anything is detectable. Play the video, wait a few seconds and reopen the popup. Listing and search pages generally do not activate detection at all.