YouTube content creators can obtain background video clips from various sources, including stock footage websites, public domain footage archives, and creative commons footage repositories. Some of the popular websites that offer stock footage and video clips include Shutterstock, iStock, Adobe Stock, and Pond5.

Pixabay is a stock video site that offers over a million completely free stock videos. To download, simply choose one of their many copyright-free videos and select your preferred resolution — it's that easy! All Pixabay stock videos are free to use both commercially and non-commercially.

“Royalty-Free” simply means that once you've legally licensed the clip or song (typically through a membership or a standalone purchase from a stock media company like Filmpac) you can use it indefinitely, within the license terms, without ever having to pay more.