Best Free Prototyping Software - Page 2

Visily is the easiest and most powerful wireframe software that enables teams, regardless of size and skills, to brainstorm and create beautiful app wireframes. Through an intuitive interface, rich UI library, and advanced AI features, Visily has helped thousands of non-designers such as founders, product managers, business analysts, and software developers quickly iterate and validate their ideas.

Your design is not stored internally in a custom data structure that has to be exported to code. Instead, we are always editing your code on the fly, allowing designers and developers to share files. Create unique responsive layouts with ease and without constraints by harnessing the power of the Web Platform. Our grid tool is the most powerful and easy-to-use grid system out there. Our GUI makes writing code unnecessary for designing. But, even so, you are actually generating your own code that you or your developer teammate can modify at any time. Imagine what you can build together. Colors, sizes, fonts, margins everything will look exactly like your users will see it, and developers won't have to spend time again guessing the designer's intentions.

With Clutch, you can design websites by visualizing components as blocks rather than lines of code, which saves you time and effort. Clutch's componentization approach allows you to reuse the same features throughout your project, eliminating the need to rebuild them from scratch. This not only saves time but also helps maintain consistency and ensures that your website has a cohesive look and feel. In addition to its visual interface, Clutch offers the option to code when necessary, allowing you to connect your website to a backend and perform database operations as needed. This means that even though you're using a visual builder, you're not limited to drag-and-drop components. This makes it easy to build complex web applications with advanced functionality while maintaining the benefits of a visual website builder.

With the introduction of UltraStudio, developing, testing and deploying projects for UltraESB-X is just a few clicks away. Using UltraStudio now you can easily create complex enterprise integration flows just by drag-n-drop. UltraProjects are built and packaged with Maven. Managing connectors and processors is as simple as adding a dependency. Learn how UltraStudio, the unified Integrated Development Environment (IDE) for Project-X, provides a powerful graphical interface for developers to design, develop, test and debug their integration solutions with less hassle. UltraStudio is fully based on IntelliJ IDEA and supports both the Community Edition as well as the Ultimate Edition.

Alloy is the first lifelike AI prototyping tool for product managers, built to turn ideas into high-fidelity, clickable prototypes. Recreate existing product pages in minutes, keep component libraries and design systems in sync, and explore new flows with pixel-perfect realism. Use AI prompting and a visual editor to swap copy, refine layouts, preview micro-interactions, and validate UX across web apps, SaaS, and mobile. Because Alloy prototypes look and behave like the real product, stakeholders grasp concepts, customers can test realistic journeys, and engineers get clear specs for faster handoff. Map edge cases, empty states, and breakpoints without rebuilding. Collaborate: share a link to your canvas, collect comments, and iterate to alignment in hours not weeks. Alloy accelerates discovery, reduces rework, and de-risks launches with user feedback. Build your next feature today with Alloy—the lifelike, no-code prototyping platform for speed, realism, and team alignment with ease.