ProtoPie

UXPin

UXPin is a UX/UI design and prototyping tool that lets teams build interfaces using real, code-backed components instead of static shapes, bridging the gap between design and development. It includes built-in React component libraries like MUI, Tailwind UI, and Ant Design, an AI Component Creator, and Git and Storybook integrations for syncing custom design systems.

Principle

Principle is a native macOS application for designing animated and interactive user interfaces, letting designers build timeline-based animations, transitions, and custom interactions without writing code. It imports files from Figma and Sketch, visualizes multi-screen app flows from a bird's-eye view, and exports prototypes as shareable web links or video/GIF files.

Axure RP

Axure RP is a UX design tool for building realistic, functional prototypes with conditional logic, variables, and event triggers, without requiring code. It combines prototyping with flow diagramming and specification documentation, and includes adaptive views for testing designs across desktop, tablet, and mobile layouts.

Justinmind

Justinmind is a design and prototyping platform used to build web and mobile app interfaces ranging from low-fidelity wireframes to high-fidelity interactive prototypes. It offers vector-based UI design tools, reusable design systems and UI kits, and interaction features like web animations, transitions, and mobile gestures such as tap, swipe, pinch, and scroll. The platform is used by teams at companies including Adobe, Google, and Cisco, and combines prototyping with requirements management, letting teams embed and track requirements directly inside prototypes. Finished work can be tested on iPhone, iPad, and Android through companion viewer and emulator apps, and exported as HTML, SVG, PNG, or developer specification documents.

Origami Studio

Origami Studio is a free prototyping tool built and maintained by Meta, used internally to design interactions for products like Facebook, Instagram, WhatsApp, and Meta Quest. It combines a visual canvas for layout with a node-based Patch Editor for building complex interactions, including access to device hardware like the camera, haptics, and motion sensors for realistic mobile prototyping.

Framer

Framer lets designers create high‑fidelity interactive prototypes with real code, motion, and responsive layouts. Its web‑based editor combines visual design tools with the ability to add custom React components, so teams can iterate quickly without switching tools. Built for collaboration, Framer syncs changes in real time, supports design‑system integration, and generates shareable links that work on any device. The platform also offers handoff features that let developers inspect code and assets directly from the prototype.