Channel ID is a unique ID allotted to every YouTube Channel. It helps the search engine in differentiating between various channels available on YouTube. If you want to know your channel ID, you can check the advanced settings of YouTube, going through tons of steps. Or, you could just use YT Channel ID finder and know the results in just one step. Paste the URL of your video in the textbox and press submit. It would bring you the channel ID right away. While it is safe to use, it also is the simplest way of accomplishing the task. So, go on and enter as many URLs as you like.