Try the free version on Firefox (which has fewer restrictions than Chrome) and see if the QR watermark is acceptable. If not, switch to a completely free alternative like Cat-Catch or Stream Detector.
: The free tier of Video DownloadHelper still downloads the vast majority of web videos perfectly. If you encounter a video that requires aggregation (joining separate audio and video tracks), you can let the extension process it. The only caveat is a small QR code watermark in the corner, which does not ruin casual viewing. Video Downloadhelper License Key Free Fixed
Modern versions of Video DownloadHelper validate registration keys against an online database. If a key is leaked publicly, the developer instantly revokes it. Try the free version on Firefox (which has