The best free Prototyping alternative to Adobe XD is Penpot, which is also Open Source. If that doesn't suit you, our users have ranked more than 50 alternatives to Adobe XD and many of them are free Prototyping Tools so hopefully you can find a suitable replacement. Other interesting free Prototyping Tool alternatives to Adobe XD are Figma, Pencil Project, Lunacy and Framer.
Open-source design platform offering web-based and self-hosted workflows, code inspection in HTML and CSS, adaptive layouts with CSS Grid and Flex, real-time collaboration, auto layout features, reusable components, design tokens, layer support, plugins, and no tracking.
Figma is a web-based platform offering a robust set of tools for vector graphics editing and prototyping, along with offline desktop apps for seamless workflows. Designed specifically for UI and UX design, it emphasizes real-time collaboration, visual versioning, and vector networks to streamline the designer's work.
Pencil is a standalone app that lets you create diagrams or UI mockups. It doesn't have collaboration/multi-user features.
Cross-platform vector editor for UI, UX, and web projects with native .sketch file editing, real-time multi-user collaboration, an AI-backed asset library, code and asset export, Figma integration, offline use, seamless cloud management, and auto layout tools.
Combines code-driven and visual editing workflows for interactive UI design, high-fidelity prototyping, real-time team collaboration, reusable components, inline commenting, mobile previews on Android/iOS, and smooth developer handoff for efficient workflow.
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A streamlined web app that helps you create and collaborate in real-time on wireframes, mockups, diagrams and prototypes.
Pixso is the best collaboration tool that enables you to make great products as a team. You can prototype, design, and deliver code with Pixso.
Mockup redefines the entire process of sketching UI & UX projects for iOS. With the extensive collection of tools and features that Mockup provides, it's the ideal app for brainstorming and planning your next app and web design.
A collaborative design tool offering wireframing, prototyping, and design specs creation in a single browser-based platform. Integrate seamlessly with your workflow via API, sync with Sketch and Photoshop, and utilize a vast library of assets. Streamline design-to-dev with automated code generation.
Origami Studio is a free design tool built by Facebook designers for creating interactive UI prototypes. An elegant, layer-based interface allows designers to repaidly create prototypes with layers, build interactions and then share them with others.
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It's the best UX/UI tool out there, bar none. Besides very strong vector editor features, which allow creating responsive wireframes, mockups, and prototypes in no time, its collaboration features are unparalleled. It's extremely simple to hand off a design from UX to UI, or from UI to a copyrighter, allowing them to experiment on a duplicated page or just tweak the copy in the design.