I am having trouble downloading YouTube playlists. It proves challenging to save the desired videos in a batch and have them available for offline use. Additionally, I need a tool that also offers the possibility to convert these videos into MP3 format to save them as audio files and listen to them offline. Quality and ease of use of the tool are also crucial factors for me. Therefore, I am looking for a reliable, user-friendly online tool that does not require additional software installation and is accessible on various devices.

The YouTube Online Downloader is an excellent solution for your problem. You can simply input the URL of any desired YouTube video into the tool and download it, including entire playlists. It also allows for direct conversion of videos into the MP3 format for saving as audio files. The quality of the downloaded files is high, and the tool stands out for its simplicity and user-friendliness. There's no need to install additional software, and accessibility on various devices is ensured by the tool's responsive web design. With the YouTube Online Downloader, you have a reliable online tool at your disposal that enhances your YouTube experience and makes it available offline. Therefore, it meets all your requirements for such a tool.