If you're looking for a tool to automate the packaging design process and let you customize, Packify.ai is a great option. This AI-powered tool uses machine learning to quickly generate creative packaging design ideas you can then edit and refine. It's geared for companies or designers who want to accelerate the design process without a lot of manual labor.
Another option is Designs.ai, an AI-powered creative suite that automates packaging design but also offers tools for logos, videos, banners and mockups. It's a general-purpose tool, with features like AI-assisted color palette generation and font pairing, so it's good for individuals or professional agencies.