Proto.io is described as 'Create fully-interactive high-fidelity prototypes that look and work exactly like your app should. No coding required. Companies like IDEO, Disney, Paypal, Airbnb and more use Proto.io' and is a Wireframing tool in the development category. There are more than 25 alternatives to Proto.io, not only websites but also apps for a variety of platforms, including Mac, Windows, SaaS and Self-Hosted apps. The best Proto.io alternative is Napkins.dev, which is both free and Open Source. Other great sites and apps similar to Proto.io are Frame0, Balsamiq Wireframes, Wireflow and InVision.
An open source wireframe to app tool powered by Llama 3.2 vision. Upload a screenshot of a simple site/design & get code.
Napkins.dev is the most popular Web-based alternative to Proto.io.
Napkins.dev is the most popular Open Source & free alternative to Proto.io.
Sketch your app ideas without stress Make hand-drawn style wireframes quickly and easily.
Frame0 is the most popular Windows, Mac & Linux alternative to Proto.io.
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.
Balsamiq Wireframes is the most popular commercial alternative to Proto.io.
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.
Wireflow is the most popular Self-Hosted alternative to Proto.io.
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.
InVision is the most popular Android, iPhone, iPad & Android Tablet alternative to Proto.io.
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.
Marvel is the most popular SaaS alternative to Proto.io.
Presentator is a free web application that allows you to present your designs in an easy, organized and interactive way.
Studio.Design is the site builder for designers. The browser app is packed with design features as intuitive as Figma, a CMS as simple as Notion, and one-click publishing to your domain. Now, you can finally turn any idea into a stunning website quickly and easily.
Flinto for Mac is a comprehensive app prototyping tool that allows you to create anything from simple tap-through prototypes, to comprehensive prototypes with impressive interactions. We’ve carefully designed Flinto for Mac to minimize complexity.
Justinmind is the best solution to prototype any web or mobile app you can think of. You can define websites and apps for Web, iOS, and Android with our intuitive drag-and-drop interface. No code involved.
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It´s easy and fun to use, although I still rather proto.io