Complete prototyping tool for web and mobile applications
From wireframes to highly interactive prototypes
Easily create fully interactive prototypes
Design from scratch. From clickable wireframes to fully interactive prototypes. We provide a full range of web interactions and mobile gestures, so you can focus on creating enjoyable user experiences.
Visual design
You can design the style, size, and layout distribution of any UI element to suit the look of your screens.
Web interactions
Create web experiences with a full range of interactions, animations, and transitions. Create anything from simple links to advanced interactions.
Mobile gestures
Choose from several gestures that let you rotate, tap, slide, scroll, and pinch your way through the mobile app prototype.
Responsive prototyping
Create wireframes for websites and web applications that adapt to multiple screen resolutions for desktop and mobile devices. The UI elements on your screens will also automatically adapt. A free prototyping tool to rule all devices!
Liquid layouts
Define liquid containers to allow elements on a page to adapt to different screen sizes, orientations, or proportions.
Automatically resize UI components
Auto resize automatically resizes groups of elements on your pages, saving you from multiple changes and allowing you to focus on creating.
Advanced fixation
Correct the position of objects in containers or screens. Combine the power to pin with an offset to create responsive experiences.
Forms and data on the go
Prototype smart forms and data lists and test them instantly without writing a single line of code. You can also design conditional navigation flows for advanced user journeys.
Interaction of prototyping forms
Define interactions and validations for form fields: input, drop-down menus, radio buttons.
Lists and data grids
Visualization of design data. Data lists can be dynamic and use data to help with user testing.
Bring your prototypes to life in one click
View your web and mobile prototypes as you create them. Test your projects with users.
Instant view
Simulate prototype behavior while creating. Save time on your creations!
View on device
Use our viewer to test your prototype live on any iPhone, iPad, or Android device.
Export to HTML
Export your prototype to a fully functional and interactive HTML.
Free ui kits for web and mobile devices
Speed up your design process with frequently updated, ready-to-update UI kits. You can also create your own UI kits with custom components.
Websites and web applications
Use UI kits for wireframing and prototyping with interactive components
Mobile apps
Find iOS and Android components pre-installed in the free Justinmind prototyping tool.
Diagramming, Drawing and more
You'll also find UI kits for flowcharts, sketches, Salesforce, Oracle, and more.
Design Systems
Maintain consistency in your Style Guides, UI component libraries, interactions, templates, and other products. Share your assets with design teams, business analysts, and developers.
Collaborate on your prototypes
Validate early and often. Allow all stakeholders to test and analyze your prototype, leaving no room for misunderstanding. Improve communication between teams by putting them all on the same page.
Design delivery for developers
Say goodbye to communication failures that cost a lot of time. With our developer-friendly viewer, the collaboration between design and development is stress-free. Developers can inspect prototypes and obtain assets. Keeping developers informed means your designs are created with the perfect pixel.
Specifications
Instantly export your project to clear specification documents along with visuals for easy interpretation. All information in your prototypes can be exported to customizable documents. You can even create custom document templates.
System requirements
Supported operating systems
Mac OS X 10.5 x (Leopard), Mac OS X 10.6 (Snow Leopard), Mac OS X 10.7 (Lion), Mac OS X 10.7 (Mountain Lion), OS X 10.9 (Mavericks) and Mac OS X 10.10 (Yosemite)
Hardware requirements
Memory - 1 GB of RAM and more
Free disk space - 50 MB
System type - 32-bit and 64-bit OS
Android
Ios
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