Getting Started with ROSI

Learn how to download media with ROSI: paste a URL, pick quality and format, and manage your downloads.

Install ROSI

Download the latest build for your platform from the ROSI downloads page or the Microsoft Store. Official installers bundle yt-dlp and FFmpeg; you do not need separate installs.

Download a video or audio file

Open ROSI and paste a supported URL into the address bar.
Choose the format and quality you want (video, audio-only, or a specific codec).
Confirm the save location in Settings if you want a folder other than the default.
Start the download and watch progress in the queue.

Browser cookies (when needed)

Some sites require cookies from your browser. Enable Hook into Web Browser in Settings and pick a supported browser. See the Browser Cookies guide for platform details.

Updates

ROSI checks GitHub for new releases and can download updates in-app. You can also download manually from the releases page at any time.

Custom FFmpeg path

Official builds include FFmpeg. If you are building from source or prefer your own binary, set a custom FFmpeg path in Settings to override the bundled copy.

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Prefer the previous ROSI v3 UI? See What is the LTS Version? or the ROSI-LTS docs.