I have used this software to successfully download, as well as other. It also provides a lot of popular output formats and devices, we don't have to worry about downloaded videos can't be played or the video format is incompatible with our devices. Now, SpongeBob downloader to start our work! Step 1: Paste SpongeBob Cartoon URL into Program Firstly, and install Free HD Video Converter Factory on your PC. Go to YouTube and find the SpongeBob video you want to download, then copy its URL. Launch the software you just installed and click “Download Video” to enter a new window.