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Use playback to check that a detected media item is the clip you wanted.
Published
A page can produce multiple detected items, especially while browsing a feed. Previewing an item gives you a chance to compare its content with the video you intended to keep before starting a download.
Video Preview is marked for both Stream Katcher plans, FetchV and CocoCut Free and Paid. Video DownloadHelper Free and Paid are marked unsupported for in-tool preview in this infographic.
A preview uses media the browser can still access. An expired link, account restriction, unsupported format or protected stream can prevent playback. Treat preview as a helpful check, not proof that a later download will complete.
Note: the comparison infographic is dated October 9, 2026. It does not specify product versions or a testing method; results on a particular website can differ.