ProtoPie
The way you speak, the way you prototype Interactive prototypes for the digital products of tomorrow. Create the most realistic prototypes easily. Accelerate your workflow with components and supercharge your prototypes with sensors, variables, and more. Import your designs from your favorite design tools. Prototyping has never been this easy on macOS and Windows. Test your amazing creations on smartphones, tablets, desktop, and the web. All in a heartbeat.
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Penpot
Penpot is the free open-source design tool that allows true collaboration between designers and developers. Hand-off drama disappears, thanks to features like CSS Grid, Flex Layout and the Code Inspect tab.
Designers can create stunning designs, interactive prototypes, design systems at scale, while developers enjoy ready-to-use code and make their workflow easy and fast.
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Alloy
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.
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Origami Studio
A new way to visually layout your Origami prototypes with freeform drawing tools, text editing, and visual components. Wire up flows between screens with built-in present and dismiss animations. Visually layout your components in the Canvas and combine them with powerful interactions in the patch editor. Tap into native hardware APIs. Expand the potential of your prototypes with patches that unlock hardware capabilities. Copy and paste editable vector shape and text layers into Origami. Capture, trim, and export video of your prototype directly in Origami. Easily share prototypes in critique, reviews, or just for fun. Origami performance gets an upgrade. Faster patch editor, faster viewer, faster everything. Preview your prototype on both simulated and physical devices. Importing from design tools like Sketch is as simple as copying and pasting. Make sure you have the Origami Pasteboard installed from the Figma plugin community.
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