App Development

  • Mockup Designer

    Free Web Self-Hosted Website

    Mockup Designer, built with Backbone, Backbone-LocalStorage and Html2Canvas, is a super-easy-to-use mockup tool that uses the local storage of your browser as its backend. However the data layer is loosely coupled, so you can integrate with any RESTful API or any Backend service.


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  • Cappuccino

    Free Mac Windows Linux Website

    Cappuccino is a framework which makes it easy to create advanced web apps. With just a few lines of code you can have an app built with full undo and redo, truly amazing table views, drag and drop and every modern UI appearance and behaviour you might expect on the desktop.


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  • Fluid UI

    Freemium Web Software as a Service (SaaS) Website

    Fluid UI is the fastest mobile app prototyping tool available. Design and test your low and high fidelity app mockups on a mobile device with ease. Simple and UX oriented, this UI tool helps unlock creativity and will save your team time and money while gathering app requirements.


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    Commercial Web Website

    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


    Freemium Web Website

    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.

    Free plan includes 2 projects.

  • JSONLint

    Free Mac Windows Linux Web JSON Website

    JSON Lint is a web based validator and reformatter for JSON, a lightweight data-interchange format.


  • Moqups

    Freemium Web Website

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


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  • InVision

    Freemium Web Android iPhone Android Tablet iPad Website

    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.

    With intuitive tools for ideation, design, prototyping, and design management, the InVision platform gives you everything you need for digital product design, all in one place.

    It’s what more than 5 million people—at tens of thousands of companies, including 100% of the Fortune 100, and brands like Airbnb, Amazon, HBO, Netflix, Slack, Starbucks and Uber—use to make products you love.

    InVision is a fully distributed company with employees in more than 20 countries around the world. Together, we’re on a mission to help you make every digital experience magically better.


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  • Marvel

    Freemium Android iPhone Android Tablet iPad Apple Watch ... Apple TV Apple Messages Software as a Service (SaaS) Website

    The collaborative design platform. Wireframe, prototype, design online and create design specs in one place. Or create an integration with our API.


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    Freemium Web Website

    Xiffe is an ideal platform for creating interactive prototypes for your mobile apps in a jiffy. It lets you drag-drop native controls for iOS, Android and Windows Phone (and tablet) apps and create interactive prototypes. You can add screen transitions between views to simulate actual flow between screens. The prototypes can be share with others and seen on mobile browsers to see how it would behave on an actual device.

    Xiffe is completely web-based and lets you use intuitive drag-drop features for creating UI designs for your apps without any coding. Ideal for use by UI/UX designers and mobile app developers/designers.

  • Framer

    Freemium Mac Windows Web Website

    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.

    It’s got all the team collaboration features you’d want in a high-fidelity prototyping tool: multi-player editing, easy sharing, inline commenting, reusable components, mobile preview, and developer handoff. But let’s cut right to what makes this one of the best design and prototyping tools on the market.

    Framer has a mobile app to view and interact with your Framer X and Framer Classic projects on Android/iOS phones and tablets called Framer Preview


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  • NinjaMock

    Freemium Mac Windows Web Website

    A free tool for rapid prototyping, fun wireframing and quick mockups.
    Create mobile app wireframes for iOS, Android, Windows Phone, Surface, design website mockups, share, collaborate and test usability for free!


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  • Atomic

    Freemium Web Website

    Work your way up from a blank canvas, or pull in designs from Photoshop or Sketch. Lay out your states and instantly animate between them, without coding a thing. Share your prototypes with anyone or view on any device via a humble URL


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  • Pixate

    Freemium Mac Windows Web Android iPhone Website

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


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  • ProtoPie

    Commercial Mac Windows Android iPhone Android Tablet ... iPad Website

    ProtoPie is the easiest tool used to turn your UI/UX design ideas into highly interactive prototypes for mobile, desktop, web, all the way to IoT.


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  • Origami Studio

    Free Mac iPhone Website

    Origami Studio is a free design tool built by Facebook designers for creating interactive UI prototypes. An elegant, layer-based interface allows designers to repaidly create prototypes with layers, build interactions and then share them with others.


    • Layer-based editing that lets you import layers from Small Sketch iconSketch .
    • Intuitive patch-based design for creating interactions, animations and behaviors.
    • Save time by using a library of pre-built components that you can add to.
    • Preview designs live via Origami Live, the accompanying mobile app for iOS.
    • Capture and export video recordings directly from the app.


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  • PandaSuite

    Freemium Web Website

    How great apps are made - PandaSuite makes it easy to create highly interactive content (iOS, Android, HTML5) and publish it where it matters.


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  • Justinmind

    Commercial Mac Windows Website

    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.

    Just start from the template of your choice and customize it. Add our pre-loaded UI kits and give life to your design with clickable regions and link interactions. Finally, test the final user experience in a click!


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    Free Mac Windows Linux Web Chrome ... Safari Firefox Website

    Ultimate design tool for developers allowing opening design files like psd, svg, pdf, or plain images to extract layers, measure metrics, picking colours, sharing, adding comments / annotation, team discussion, version revising and more! .


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    Freemium Web Website

    STUDIO lets you easily design & publish websites from scratch without writing any code. With the option of starting from a blank canvas, wireframe or template, you are free to unleash your creativity. .


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  • Adobe XD

    Commercial Mac Windows Website

    Adobe XD (Experience Design) is a vector-based tool developed and published by Adobe Inc for designing and prototyping user experience for web and mobile apps.

    Wireframe, design, prototype, present, and share amazing experiences for web, mobile, voice, and more — all in one app. XD is made for designers, creative teams, and organizations that need to design at scale. It’s everything you need to work more efficiently, collaborate effortlessly, and create and manage your design system.

    Adobe XD has a companion app for phones that allows you to view and interact with your projects as visual prototypes called Small Adobe XD Mirror iconAdobe XD Mirror


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  • Prototype Composer

    Freemium Windows Website

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


  • Prototyp

    Free Web Website

    A free web app to prototype awesome interactions quickly and easily using Framer.js.


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