Montage Prototyping AlternativesPrototyping Tools and other similar apps like Montage Prototyping

Penpot offers open-source design solutions with seamless workflows, including responsive layouts and code inspection in HTML/CSS. Supporting design systems, it enables developers to ship fast using ready-to-use code while ensuring file ownership. Perfect for team collaboration, it's free with premium options.

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.

Lunacy is a native Windows app that opens, edits, and stores .sketch files. In short, it’s long-awaited Sketch for Windows. It solves the big pain of design teams working on different operating systems and improves the process of transition from design to development.

Low-fidelity UI wireframing tool simulating sketching experience, optimized for speed with Quick Add, built for collaboration, drag-n-drop simplicity, exportable wireframes to PNG/PDF, interactive prototypes via linking, hundreds of UI components, reusable symbols, and more.

Feature-rich, open-source Wireflow offers a collaborative platform for online creation of complex user flow prototypes. Ideal for team work in UI design, wireframing, and mind mapping, promoting idea sharing in real-time environment aided by modern whiteboard features.

Framer combines the power of code with the ease of visual editing. Prototype beautiful microinteractions or realistic apps. It’s time to design with development in mind.

A streamlined web app that helps you create and collaborate in real-time on wireframes, mockups, diagrams and prototypes.

We believe the screen is the most important place in the world. That’s why we are dedicated to helping you deliver the best possible digital product experience, with our platform and best practices from your peers.

Principle makes it easy to create animated and interactive user interface designs. Whether you're designing the flow of a multi-screen app, or new interactions and animations, Principle lets you create designs that look and feel amazing.

Quant-UX is an integrated Prototyping and Analytics software. It allows you to design, test and analyze interaction prototypes.

Presentator is a free web application that allows you to present your designs in an easy, organized and interactive way.

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.