How to download YouTube videos legally?

The cleanest legal option is YouTube Premium. It adds an offline download feature for eligible videos, but the file stays inside YouTube’s app or site. YouTube says Premium downloads can usually be played offline for up to 29 days before you need to reconnect so the app can check availability.

You can also download videos you uploaded yourself. That is different from saving someone else’s video with a third-party downloader. YouTube’s rules generally do not allow copying, reproducing, or distributing content outside the service unless YouTube or the copyright owner gives permission.

For public-domain footage, Creative Commons videos, or material where the creator explicitly offers a download, the legal question is the license. Check whether reuse is allowed, whether attribution is required, and whether commercial use is prohibited. “Available on YouTube” does not automatically mean “free to download.”

The practical rule: use YouTube Premium for offline viewing, download your own uploads when needed, and use outside tools only when the video owner or license clearly permits it. Reposting, selling, training an AI model on, or stripping paywalled content is where the risk jumps from a terms-of-service problem into a copyright problem.