For rapid prototyping of websites, a good option for freelancers and agencies, Mockitt is a powerful option. It's an all-in-one design, prototyping and collaboration tool with AI abilities like AI prototype generation and real-time collaboration. It handles web and mobile apps, and has a wealth of tutorials and a learning center to help people get started, so it's good for a broad range of people.
Another top contender is Visily. This UI design tool lets you create high-fidelity wireframes and prototypes without needing to know much about design. AI tools like Text to Diagram Beta and more than 1,500 prebuilt templates means Visily can handle real-time collaboration and interactive prototypes. It's free to use for now, but a Pro version is on the way.
Prototyper is another option to consider. This generative UI platform uses AI to rapidly create and test user interfaces. It can create React code based on text prompts and images, and offers real-time iteration and customizable frameworks. Prototyper offers collaboration abilities with workspaces and integrations, so it's good for designers who work alone or in enterprise teams.
Last, Uizard offers an AI-powered UI design tool for rapidly creating and experimenting with product designs. It's got a drag-and-drop editor, real-time collaboration and design sharing as interactive prototypes or in CSS or React code. Uizard's rich AI tools make the design process more accessible and easier, and it's good for product managers, designers, marketers and developers.