Free wireframing tool for web and mobile

Enjoy our 30-day free PRO trial and after the trial,
we'll switch you to the FREE forever edition

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Justinmind prototyping and wireframing tool for web and mobile apps

Unlimited hi-fi wireframes that you can preview and test

Give free rein to your creativity! With Justinmind you can build as many app wireframes and prototypes as you wish, with no limits.

Preview and test your prototypes and validate the complete experience in any browser, or as if viewed on a real device. You'll see how your real app or website will look in seconds, without coding.

UI Kits to create interactive wireframes for iOS, Android and Web

Speed up your design process with ready-made and frequently updated UI libraries to wireframe web and mobile apps.

You can use all the interactive UI elements for web and mobile that are pre-loaded in Justinmind. Through easy drag & drop you can add them to the work area and create real and clickable prototypes in minutes, learning to appreciate the immediacy of Justinmind.

A drag & drop wireframe design environment

Find an efficient wireframe design environment in Justinmind! All images inserted into your wireframe can be modified to fit the dimensions and style of your design.Use guides, rulers, and the grid tool to place and align elements on the canvas.

You can also customize all your UI elements, by adjusting the edges of your borders, from sharp to completely round edges.

Styles and Fonts

All new projects start with a default template and Justinmind UI elements are contained within it.

You can change the default style, position, size, background, and layout distribution of any UI element to fit the look and feel of your screens.
A font type drop-down contains the list of fonts available on your system and an option to add more from Google fonts directory.

Integration with design tools

Linking images and SVG files can be especially helpful when working simultaneously with Photoshop, Illustrator or Sketch. All images embedded in your wireframe will be automatically updated whenever files are modified.

Furthermore, with Justinmind you can import, embed or link any SVG and other Vector files. You can also change their color, and scale them without losing quality.

Start with a 30-day free pro trial

After the trial we'll switch you to our free forever edition
Unlimited Prototypes and Pages
Build as many prototypes, pages and screens as you wish, with no limits, no code, and no cost involved.
Interactive Widgets for Web, iPhone, Android, and iPad
Frequently updated, the UI elements are all in web font to edit color, size and shadow, and fit your design guidelines and brand image.
Web Interactions and Mobile Gestures
Choose from a full set of gestures and super-smooth transitions that will make your prototype feel as realistic as possible.
Effects and Transitions
Improve UX in interaction design by building beautiful animations through a wide variety of events, and define how your items will react by using a vast selection of effects.
Export to: interactive HTML, Documents and Images
Create and share content that you can use and reuse on any screen or design with templates, and apply your changes globally across your prototype with Masters.
Cloud Collaboration
A single click lets you publish your entire prototyping experience online and invite users and customers to share ideas and participate in the creative process.
Conditional Navigation and Business Logic
Reproduce the end-to-end flows of business rules and conditions to validate the specific requirements of your prototype.
With the ability to create prototypes across different screen sizes and devices, we are able to validate hypotheses prior to creative design and build
Chris Murray
VP/Director, User Experience at Digitas Health
Justinmind combines a design environment with outstanding prototyping & collaboration features in one single too
Markku Lukkarinen
Senior UX Designer
Our team uses Justinmind to share ideas, collaborate, test assumptions, and prototype multiple design concepts for our web and mobile applications
Randi Boyd
Principal, UX director at Ink Cloud Group