Alternatives to for all platforms with any license

  • Lucidchart icon


    Online diagram and flowchart software that supports Microsoft Visio import and can work on any operating system.

    Freemium Mac Windows Linux Web / Cloud iPad Chrome ... Google Apps

  • Balsamiq Mockups icon

    Balsamiq Mockups

    Using Balsamiq Mockups feels like you are drawing, but its digital, so you can tweak and rearrange controls easily, and the end result...

    Commercial Mac Windows Web / Cloud

  • InVision icon


    InVision's prototype tool lets you create interactive wireframes and high-fidelity prototypes. Share your work and get instant...

    Freemium Web / Cloud

  • Axure RP icon

    Axure RP

    Axure RP is the leading tool for rapidly creating wireframes, prototypes and specifications for applications and web sites.

    Commercial Mac Windows

  • Diagramo icon


    Diagramo is an online flowchart software - diagrams (create, edit and share) - organization charts (create, edit and share) -...

    Open Source Web / Cloud

  • UXPin icon


    UXPin is a web-based system for managing design documents like wireframes, sitemaps, persona descriptions or flowcharts. It lets you...

    Commercial Mac Windows Linux Web / Cloud

  • Fluid UI icon

    Fluid UI

    Fluid UI is the fastest mobile app prototyping tool available. Design and test your low and high fidelity app mockups on a mobile...

    Freemium Web / Cloud

  • Marvel icon


    Marvel is a free prototyping tool that transforms static design files (like Photoshop files, PNG etc) and sketches into interactive...

    Freemium Web / Cloud Android iPhone Apple Watch tvOS

  • Mockup Designer

    Mockup Designer, built with Backbone, Backbone-LocalStorage and Html2Canvas, is a super-easy-to-use mockup tool that uses the local...

    Open Source Web / Cloud

  • Storyboard That icon

    Storyboard That

    Storyboard That is the world's best online storyboard creator. Everyday people from all over the world use Storyboard That to...

    Freemium Mac Windows Linux Web / Cloud Android iPad

  • ViewFlux icon


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

    Freemium Web / Cloud

  • Pixate icon


    Pixate generates 100% native prototypes, so you can experience your ideas on device as if they’re completely real.

    Freemium Mac Windows Web / Cloud Android iPhone

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  • Atomic icon


    Work your way up from a blank canvas, or pull in designs from Photoshop or Sketch. Lay out your states and instantly animate between...

    Freemium Web / Cloud

  • Flinto icon


    Flinto for Mac is a comprehensive app prototyping tool that allows you to create anything from simple tap-through prototypes, to...

    Commercial Mac iPhone

  • Mockup Builder icon

    Mockup Builder

    Design your software or website mockups within minutes. Mockup Builder is a new look to solve old problem with prototyping and sharing...

    Freemium Web / Cloud

  • Indigo Studio icon

    Indigo Studio

    The newest design tool from the leaders in UX, Indigo Studio lets you quickly and simply explore and create functional, animated UI...

    Commercial Mac Windows

  • MockFlow icon


    Nothing to download/install, create and access your mockups from anywhere. Add pages with templates and define links to present a...

    Freemium Web / Cloud

  • Justinmind Prototyper icon

    Justinmind Prototyper

    A functional wireframe is the best way to reduce costs of your software projects. Simulate your wireframes and mitigate risks.

    Commercial Mac Windows

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  • Principle icon


    Principle makes it easy to create animated and interactive user interface designs. Whether you're designing the flow of a...

    Commercial Mac iPhone iPad

  • HotGloo icon


    Web-based HotGloo is a rich internet application designed to build functional online wireframes for a website or web projects. HotGloo...

    Commercial Mac Windows Linux Web / Cloud

  • icon

    A web-based tool to visualize and collaborate on mobile app design and prototypes with the team and clients.

    Free Android iPhone Android Tablet iPad Apple Watch Android Wear

  • Composite icon


    Automatically connects to your Photoshop document and converts your mockups into interactive prototypes using layer comps to organize...

    Commercial iPhone iPad

  • Specfox icon


    Specfox is a platform that makes it easy to create website specifications to share with your developers.

    Freemium Mac Windows Linux

  • Flairbuilder icon


    FlairBuilder is a user interface prototyping tool for easy authoring of interactive website wireframes, mockups and GUI prototypes.

    Commercial Mac Windows Linux

  • Notism icon


    What's next after wireframes? Visual Design and Notism. With Notism you can discuss, experience and share design work. Iterate...

    Freemium Web / Cloud

  • SwordSoft Layout icon

    SwordSoft Layout

    SwordSoft Layout is an desktop application that makes it very easy for you to create, preview, and manage mockups of your website...

    Commercial Mac Windows

  • Prototype Composer

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

    Freemium Windows

  • WireframeSketcher icon


    WireframeSketcher is a software tool that helps quickly create wireframes, mockups and prototypes for desktop, web and mobile...

    Commercial Mac Windows Linux Eclipse

  • textografo icon


    Online diagramming application which generate diagrams based on text and allows real time collaboration.

    Commercial Web / Cloud

  • MockupCreator

    MockupCreator is a tool to create mockups, prototypes and wireframes. MockupCreator will help you to accelerate your products...

    Commercial Windows

  • ForeUI icon


    EaSynth ForeUI is an easy-to-use UI prototyping tool. You can use ForeUI to create skinnable prototype of software or website, and...

    Commercial Mac Windows Linux

  • Iplotz icon


    Wireframe your Ideas iPlotz allows you to rapidly create clickable, navigable mockups and wireframes for prototyping websites and...

    Freemium Web / Cloud

  • Nevron Draw icon

    Nevron Draw

    Nevron Draw is a powerful yet easy to use software for creating diagrams. It provides a large selection of shapes, formula based...

    Commercial Mac Windows

  • Napkee icon

    Napkee Discontinued

    Napkee makes your Balsamiq Mockups come alive. Import a BMML and export to web or flex code in a few clicks.

    Open Source Mac Windows Linux

  • PowerMockup icon


    PowerMockup is a PowerPoint add-in for sketching screens of web and desktop applications. The interface elements make it a breeze to...

    Commercial Windows Microsoft Office Powerpoint Comments

You can't create screens in it

Negative Comment by dog_funtom
about Oct 2015

You have to make the screens using some external tool and then upload them to, there is no built-in way to prototype screens themselves.

I wish both its own description and the description at alternetiveTo were more clear about that, so I could avoid creating yet another unnecessary and undeletable account.