If you need a tool to generate ideal customer personas quickly and easily without a lot of data or sign-up, UserPersona is a great choice. This AI-based tool generates detailed user personas in seconds and can be customized for your specific needs. With no sign-up required, it's completely free to use, and premium personas are available through InstantPersonas.com.
Another great option is FounderPal, an AI-powered suite of marketing tools for solopreneurs. It includes a User Persona Generator among eight other tools to help you understand your ideal customer. All these tools are 100% free, so you can save time and get a leg up on your marketing challenges.