12 Proto.io Alternatives for Windows, Ranked (2026)

What is Figma?

Figma is a browser-based UI design and prototyping tool used by product designers, UX teams, and front-end developers to collaborate on interface design in real time from any operating system. It replaces desktop design tools by storing files in the cloud, enabling simultaneous editing, ...

What is Fluid UI?

Fluid UI is the web-based wireframing dream. It gives full control over all the static, visual elements: fonts, colors, images, html elements, etc. Fluid UI › files can easily be opened and edited in any text editor as well as imported into other applications like Photoshop or Illustrator. ...

What is Justinmind?

Justinmind is a wireframing and prototyping tool for UX/UI designers who need to build interactive mockups for both mobile and desktop that simulate gestures, tab navigation, and conditional content without coding. Its Dynamic Panels feature lets designers prototype native app ...

What is MockupTiger?

MockupTiger is a wireframe kit library for designers building mockups across web, tablet, and mobile interfaces, offering over 2,000 pre-built UI components to accelerate early-stage design work. It functions primarily as an asset resource intended to complement wireframing applications rather ...

What is Framer X?

Framer X is a fully integrated UI and Design App. With Framer Studio, get the power of both. Framer X hand-delivers a significantly improved User Interface, a new app icon and starts with the same pro-grade codebase as Studio. It allows to create beautiful interfaces and responsive web pages ...

What is Adobe XD?

Adobe XD is a vector-based UI design and prototyping tool for UX designers and product teams building interfaces for web, desktop, and mobile. It enables designers to create high-fidelity mockups, link screens into interactive prototypes, and share developer specs—all within one file. Requires ...

What is Smartlook?

Smartlook is a session recording and behavioral analytics platform used by product and UX teams at web and mobile app companies who need to understand user behavior beyond pageview counts. It records user sessions, tracks custom events, and segments recordings by user attributes so teams can ...

What is UserTesting?

UserTesting is UX software that offers exceptional value for medium to large organizations. The focus of the product is on user feedback. UserTesting helps companies learn what users say and think about their products, services, and marketing campaigns with the help of research participants ...

What is Userlytics?

Founded in 2009, Userlytics is a user experience research platform with a global participant pool of nearly 2 million panelists. It supports both moderated and unmoderated usability studies for websites, apps, and prototypes, with flexible pricing and a worldwide panel. The platform includes ...

What is UserZoom?

UserZoom (now part of UserTesting) is a user research platform used by UX teams and product researchers at mid-to-large organizations to run both moderated and unmoderated remote usability studies with recruited participants. It handles participant recruitment, test execution, and results ...

What is UXPin?

UXPin is a code-based prototyping tool used by UX/UI designers who need to create interactive prototypes that closely resemble production interfaces, complete with real component states and conditional logic. Unlike image-based tools, it lets designers apply design system components and ...

What is InVision?

InVision is a prototyping and design collaboration tool used by UX designers and product teams to create clickable mockups, gather stakeholder feedback, and iterate on product flows without writing code. It enables teams to share designs for review and collect inline comments, reducing ...