Most downloader tools are designed for of courses you have legitimately purchased. The ethically sound approach is:
: Includes a "Reanalyze" option to detect and add newly updated content to an existing course list. Installation via ZIP File (Unpacked Extension) Udemy Downloader Extension Chrome Zip File
Since these extensions are often distributed via ZIP files on third-party websites or GitHub repositories (rather than the curated Chrome Web Store), they pose a potential security risk. Malicious actors can inject code into these extensions to steal cookies or session data. Most downloader tools are designed for of courses
Here is everything you need to know about using a Udemy downloader Chrome extension via a ZIP file, including the setup process, safety considerations, and legal alternatives. What is a Udemy Downloader ZIP File? including the setup process