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Design and prototyping tool for web and mobile apps

All-in-one UI and UX design platform to create UI assets, prototypes and simulations

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Windows
Design and prototyping tool for web and mobile apps
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Preferred by today’s top companies

From clickable prototypes to functional simulations

Create from clickable prototypes to fully-functional simulations, without typing a single line of code. We provide a full range of tools, so that you can focus on creating delightful user experiences. Testing through simulations will reduce rework and boost user adoption.


Free UI Design with no limits

Design your UI assets for free, without any restrictions on number of projects. Enjoy all UI design features, from the vector design tool, the pen tool, to pathfinders and more.

Bring your interaction design to a superior level

Design full interactions of your web and mobile products, from the navigation to the last details of the user experience: advanced interactions, animations, transitions, interactive UI elements. Launch easy to use products and boost user adoption.

web interactions
Web interactions

Design web experiences with a full range of interactions, animations and transitions. Create anything from simple links to advanced interactions.

mobile gestures
Mobile gestures

Choose from a ton of gestures that allow you to rotate, tap, swipe, scroll and pinch your way through your mobile app prototype.

Sequences and conditions
Sequences and conditions

Add sequences of actions and conditions in your interactions. Design and test the real experience.

Responsive prototyping

Create prototypes for websites and web apps that adapt to multiple screen resolutions for desktop and mobile. The UI elements in your screens will also adapt automatically. One free prototyping tool to rule all devices!


Forms and data in motion

Design, prototype and simulate fully-functional forms and data grids-lists, and test them instantly without writing a single line of code.


Bring your prototypes to life in a click

Visualize your web and mobile prototypes, while you design them. Simulate prototype behavior while you design. Use our Emulator and Viewer App to test your prototype live on any iPhone, iPad or Android device.

Design better experiences together

Validate early and often. Allow all your stakeholders to test and review your prototype, leaving no room for misunderstandings. Improve communication between teams, putting them all on the same page.

Share the prototype
Share and get feedback

A single click lets you publish your prototypes and invite all project stakeholders to give feedback early on.

Team prototyping
Team prototyping

Multiple users can work on or edit the same prototype simultaneously. Our version control system tracks the changes.

Design handoff for designs and prototypes
Design handoff for developers

Developers can inspect prototypes and get UI assets. Keeping developers in the loop means your designs get built pixel perfect

Design Systems

Keep consistency in your Style Guides, UI component libraries, interactions, templates and other deliverables. Share your assets with design teams, business analysts and developers.

Create design systems with your own UI kits for prototypes
Share and synchronize UI kits
Reuse content across prototype screens
Create your own UI Kits

Easily refine and reuse the built-in libraries or create your own. Personalize them with your own style and interactions.

Share and sync UI components

Centralized management for your UI kits. Maintain your UI elements and style guides synchronized across all your teams.

Reuse via templates and masters

Templates and masters allow you to share and reuse content (headers, footers and more) across all the screens of a prototype.

Design and prototyping features you’ll love

Free templates and UI components for web, iOS and Android app prototyping

Free design resources

Export documentation

Specifications

Integration and plugins for prototyping

Integrations and plugins


Success stories

Find out why thousands of users love to use Justinmind to create web and mobile app prototypes.

Justinmind customer Temple University

Temple University inspires the next generation of designers with Justinmind

Philadelphia’s Temple University bridges the gap between design and business with a little help from Justinmind

Justinmind customer Terry Chou

How middle schoolers are designing mobile apps with Justinmind

What happens when middle schoolers build prototypes with Justinmind? A whole heap of innovation

Justinmind customer Charles Diggs from TokBox

How TokBox solved rework problems with Justinmind

TokBox’s web and mobile app prototyping better since Interaction Designer Charles Diggs found the right prototyping tool