Top 20 Alternatives to Marvel Pop in UI & UX Prototyping Software

Browser‑based design platform with real‑time collaboration, vector editing, and interactive prototyping with transitions, overlays, and device frames.

macOS‑only vector design app renowned for UI design, symbols, and a robust plugin ecosystem that adds advanced prototyping and handoff features.

All‑in‑one design and prototyping tool from Adobe, offering repeat grids, voice prototyping, auto‑animation, and seamless integration with Creative Cloud.

Design, animate, and prototype with a focus on motion design, responsive layouts, and collaborative feedback via InVision Cloud.

Powerful wireframing and prototyping tool for complex interactions, conditional logic, and data‑driven prototypes aimed at UX professionals.

Code‑first prototyping platform that lets designers build interactive, high‑fidelity prototypes using React components and real‑time preview.

Web‑based prototyping suite with drag‑and‑drop UI, advanced animations, and device‑specific testing without any coding.

Design system‑centric prototyping tool that supports interactive states, logic, and data integration for realistic, high‑fidelity prototypes.

Low‑fidelity wireframing tool that mimics hand‑drawn sketches, ideal for quick concept validation before moving to high‑fidelity tools.

Mac app focused on animation and interaction design, allowing designers to create animated UI flows and export them as videos or interactive prototypes.

Collaboration and handoff platform that turns designs into style guides, specs, and interactive previews, integrating with Figma, Sketch, and Adobe XD.

Visual web design tool that combines UI design, responsive layout, and production‑ready code, with interactive animations and CMS capabilities.

Full‑featured prototyping solution for web and mobile apps, supporting conditional navigation, data‑driven widgets, and usability testing.

Rapid prototyping platform with drag‑and‑drop components, interactive gestures, and collaboration features for fast UI iteration.

Online prototyping tool offering a library of UI components, interactive linking, and real‑time sharing for quick mockups.

Free design tool from Facebook for creating high‑fidelity interactive prototypes, especially suited for mobile UI animations.

Open‑source design and prototyping platform that works in the browser, supporting vector editing, components, and interactive flows.

All‑in‑one design platform (the parent of Marvel Pop) offering wireframing, design, user testing, and simple click‑through prototyping.

Plugin for Figma, Sketch, and Adobe XD that adds responsive, high‑fidelity prototyping with real code export (HTML/CSS/React).

While not a UI tool per se, this React animation library enables developers to prototype interactive experiences directly in code, complementing visual prototyping workflows.