The Best 38 Atomic Alternatives

  • Moqups

    "The most stunning HTML5 App for creating high fidelity, resolution independent SVG mockups and wireframes!" The Free Plan includes 2 projects (limited to 300 objects) and 5MB of storage.

    Freemium Web

  • Concept.ly

    Free web and mobile mockup tool. Transform your design and mockups into clickable interactive applications. Perfect way to validate ideas faster with lean startup thinking. Best tool for quick prototyping.

    Freemium Web

  • UXPin

    UXPin is a web-based system for managing design documents like wireframes, sitemaps, persona descriptions or flowcharts. It lets you upload image files, invite teammates to review and comment on them, and keep track of revisions.

    Commercial Mac OS X Windows Linux Web

  • mockingbird

    mockingbird is an online tool that makes it easy for you to create, link together, preview, and share mockups of your website or application. It is not Flash based.

    Commercial Web

  • MockFlow

    Nothing to download/install, create and access your mockups from anywhere. Add pages with templates and define links to present a clickable prototype. Our components are of medium-fidelity not very sketchy or look too real.

    Freemium Web

  • Proto.io

    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.

    Commercial Web

  • Justinmind

    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...

    Commercial

  • Savahapp

    SavahApp is a collaborative platform that streamlines feedback right to your design screen that allows designers to create high-fidelity prototypes for web and mobile apps without writing a single line of code.

    Freemium Mac OS X Windows Chrome OS Web

  • ProjectHuddle

    Use your existing WordPress site to get feedback on your design projects. Upload your design images, wireframes, mockups, logo sketches, photography and more. Gather comments directly on top of your designs.

    Commercial Self-Hosted Wordpress

  • ViewFlux

    ViewFlux allows you to capture feedback, create clickable prototypes from your designs & collaborate seamlessly with your clients.

    Freemium Web

  • HotGloo

    HotGloo is a UX, wireframe and prototyping tool designed to build wireframes for web, mobile and wearables. Create and share fully interactive prototypes with your team and clients and gather feedback on the process. .

    Commercial Mac OS X Windows Linux Web

  • Flinto

    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.

    Commercial

  • ProtoShare

    ProtoShare is a web-based, collaborative wireframing and prototyping tool. It hosts a WYSIWYG drag-and-drop interface, as well as advanced components users can...

    Commercial Web

  • Prototype Composer

    Serena Prototype Composer - the best agile application prototyping tool is now free! View the demo, take the product tour, or download it free today.

    Freemium Windows

  • Moqhub

    Upload your designs,mockups or wireframes by file or by URL snapshot, organize them and connect them to web prototypes. Share them with friends, colleagues and clients...

    Freemium Web