Locate YouTube playlist you want to download, or create one.
Now you need to copy the URL of the playlist to clipboard. Right-click the address bar of your browser and select the appropriate command.
Launch YouTube to MP3 Converter and paste the URL into it using the button on toolbar. Alternatively, you can simply drag-n-drop the URL from your browser to the program.
YouTube to MP3 Converter automatically detects the video as a part of a playlist and suggests two options: download this video only or the entire playlist. Click the button with "list" icon to tell the program to add all videos from the playlist.
We are ready to download YouTube clips now! Click the Start all button, and all videos will be saved locally and converted to MP3. You can also add other individual videos or playlists to the download list. Note that the downloading process goes in background, so you can keep adding clips while other videos are being downloaded from YouTube.